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loongarch-next
3847 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Jakub Kicinski
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3321e97eab |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.16-rc6). No conflicts. Adjacent changes: Documentation/devicetree/bindings/net/allwinner,sun8i-a83t-emac.yaml |
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Lorenzo Stoakes
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bfbe71109f |
mm: update core kernel code to use vm_flags_t consistently
The core kernel code is currently very inconsistent in its use of vm_flags_t vs. unsigned long. This prevents us from changing the type of vm_flags_t in the future and is simply not correct, so correct this. While this results in rather a lot of churn, it is a critical pre-requisite for a future planned change to VMA flag type. Additionally, update VMA userland tests to account for the changes. To make review easier and to break things into smaller parts, driver and architecture-specific changes is left for a subsequent commit. The code has been adjusted to cascade the changes across all calling code as far as is needed. We will adjust architecture-specific and driver code in a subsequent patch. Overall, this patch does not introduce any functional change. Link: https://lkml.kernel.org/r/d1588e7bb96d1ea3fe7b9df2c699d5b4592d901d.1750274467.git.lorenzo.stoakes@oracle.com Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Acked-by: Kees Cook <kees@kernel.org> Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org> Acked-by: Jan Kara <jack@suse.cz> Acked-by: Christian Brauner <brauner@kernel.org> Reviewed-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Oscar Salvador <osalvador@suse.de> Reviewed-by: Pedro Falcato <pfalcato@suse.de> Acked-by: Zi Yan <ziy@nvidia.com> Acked-by: David Hildenbrand <david@redhat.com> Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Jann Horn <jannh@google.com> Cc: Liam R. Howlett <Liam.Howlett@oracle.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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Christoph Hellwig
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a8fb49c6ab |
mm: remove the for_reclaim field from struct writeback_control
This field is now only set to one in the i915 gem code that only calls writeback_iter on it, which ignores the flag. All other checks are thuse dead code and the field can be removed. Link: https://lkml.kernel.org/r/20250610054959.2057526-7-hch@lst.de Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Baolin Wang <baolin.wang@linux.alibaba.com> Cc: Chengming Zhou <chengming.zhou@linux.dev> Cc: Hugh Dickins <hughd@google.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Nhat Pham <nphamcs@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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Caleb Sander Mateos
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e399a07a8a |
mm: remove unused mmap tracepoints
The vma_mas_szero and vma_store tracepoints are unused since commit
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Ricardo Neri
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878e1e94a8 |
tracing/sched: Remove obsolete comment on suffixes
Commit
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Linus Torvalds
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2eb7f03acf |
vfs-6.16-rc5.fixes
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaGeHBAAKCRCRxhvAZXjc omJNAQCnHIDuiscCUFeevb5sMNqws6td2kexX8reLxbdzzTrFgEAwAKxy5BVhNlg NusCZ2taYmenAK+HjI3JEw6c/3IKqwE= =NxGx -----END PGP SIGNATURE----- Merge tag 'vfs-6.16-rc5.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs fixes from Christian Brauner: - Fix a regression caused by the anonymous inode rework. Making them regular files causes various places in the kernel to tip over starting with io_uring. Revert to the former status quo and port our assertion to be based on checking the inode so we don't lose the valuable VFS_*_ON_*() assertions that have already helped discover weird behavior our outright bugs. - Fix the the upper bound calculation in fuse_fill_write_pages() - Fix priority inversion issues in the eventpoll code - Make secretmen use anon_inode_make_secure_inode() to avoid bypassing the LSM layer - Fix a netfs hang due to missing case in final DIO read result collection - Fix a double put of the netfs_io_request struct - Provide some helpers to abstract out NETFS_RREQ_IN_PROGRESS flag wrangling - Fix infinite looping in netfs_wait_for_pause/request() - Fix a netfs ref leak on an extra subrequest inserted into a request's list of subreqs - Fix various cifs RPC callbacks to set NETFS_SREQ_NEED_RETRY if a subrequest fails retriably - Fix a cifs warning in the workqueue code when reconnecting a channel - Fix the updating of i_size in netfs to avoid a race between testing if we should have extended the file with a DIO write and changing i_size - Merge the places in netfs that update i_size on write - Fix coredump socket selftests * tag 'vfs-6.16-rc5.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: anon_inode: rework assertions netfs: Update tracepoints in a number of ways netfs: Renumber the NETFS_RREQ_* flags to make traces easier to read netfs: Merge i_size update functions netfs: Fix i_size updating smb: client: set missing retry flag in cifs_writev_callback() smb: client: set missing retry flag in cifs_readv_callback() smb: client: set missing retry flag in smb2_writev_callback() netfs: Fix ref leak on inserted extra subreq in write retry netfs: Fix looping in wait functions netfs: Provide helpers to perform NETFS_RREQ_IN_PROGRESS flag wangling netfs: Fix double put of request netfs: Fix hang due to missing case in final DIO read result collection eventpoll: Fix priority inversion problem fuse: fix fuse_fill_write_pages() upper bound calculation fs: export anon_inode_make_secure_inode() and fix secretmem LSM bypass selftests/coredump: Fix "socket_detect_userspace_client" test failure |
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Philip Radford
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f8e656382b |
include: trace: Add tracepoint support for inflight xfer count
Enhance the existing SCMI transfer tracepoints by including the current in-flight transfer count in `scmi_xfer_begin` and `scmi_xfer_end`. Introduce a new helper `scmi_inflight_count()` to retrieve the active transfer count from the SCMI debug counters when debug is enabled. This trace data is useful for visualizing transfer activity over time and identifying congestion or unexpected behavior in SCMI messaging. Reviewed-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Philip Radford <philip.radford@arm.com> Message-Id: <20250630105544.531723-4-philip.radford@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> |
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David Howells
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90b3ccf514
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netfs: Update tracepoints in a number of ways
Make a number of updates to the netfs tracepoints:
(1) Remove a duplicate trace from netfs_unbuffered_write_iter_locked().
(2) Move the trace in netfs_wake_rreq_flag() to after the flag is cleared
so that the change appears in the trace.
(3) Differentiate the use of netfs_rreq_trace_wait/woke_queue symbols.
(4) Don't do so many trace emissions in the wait functions as some of them
are redundant.
(5) In netfs_collect_read_results(), differentiate a subreq that's being
abandoned vs one that has been consumed in a regular way.
(6) Add a tracepoint to indicate the call to ->ki_complete().
(7) Don't double-increment the subreq_counter when retrying a write.
(8) Move the netfs_sreq_trace_io_progress tracepoint within cifs code to
just MID_RESPONSE_RECEIVED and add different tracepoints for other MID
states and note check failure.
Signed-off-by: David Howells <dhowells@redhat.com>
Co-developed-by: Paulo Alcantara <pc@manguebit.org>
Signed-off-by: Paulo Alcantara <pc@manguebit.org>
Link: https://lore.kernel.org/20250701163852.2171681-14-dhowells@redhat.com
cc: Steve French <sfrench@samba.org>
cc: netfs@lists.linux.dev
cc: linux-fsdevel@vger.kernel.org
cc: linux-cifs@vger.kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
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David Howells
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4e32541076
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netfs: Renumber the NETFS_RREQ_* flags to make traces easier to read
Renumber the NETFS_RREQ_* flags to put the most useful status bits in the bottom nibble - and therefore the last hex digit in the trace output - making it easier to grasp the state at a glance. In particular, put the IN_PROGRESS flag in bit 0 and ALL_QUEUED at bit 1. Also make the flags field in /proc/fs/netfs/requests larger to accommodate all the flags. Also make the flags field in the netfs_sreq tracepoint larger to accommodate all the NETFS_SREQ_* flags. Signed-off-by: David Howells <dhowells@redhat.com> Link: https://lore.kernel.org/20250701163852.2171681-13-dhowells@redhat.com Reviewed-by: Paulo Alcantara <pc@manguebit.org> cc: netfs@lists.linux.dev cc: linux-fsdevel@vger.kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org> |
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David Howells
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9df7b5ebea
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netfs: Fix double put of request
If a netfs request finishes during the pause loop, it will have the ref
that belongs to the IN_PROGRESS flag removed at that point - however, if it
then goes to the final wait loop, that will *also* put the ref because it
sees that the IN_PROGRESS flag is clear and incorrectly assumes that this
happened when it called the collector.
In fact, since IN_PROGRESS is clear, we shouldn't call the collector again
since it's done all the cleanup, such as calling ->ki_complete().
Fix this by making netfs_collect_in_app() just return, indicating that
we're done if IN_PROGRESS is removed.
Fixes:
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Jakub Kicinski
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32155c6fd9 |
bpf-next-for-netdev
-----BEGIN PGP SIGNATURE----- iIsEABYKADMWIQTFp0I1jqZrAX+hPRXbK58LschIgwUCaF3LFhUcZGFuaWVsQGlv Z2VhcmJveC5uZXQACgkQ2yufC7HISINtRgD+JagJmBokoPnsk7DfauJnVhaP95aV tsnna+fU1kGwS7MBAMINCoLyeISiD/XG0O+Om38czhhglWbl4+TgrthegPkE =opKf -----END PGP SIGNATURE----- Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next Daniel Borkmann says: ==================== pull-request: bpf-next 2025-06-27 We've added 6 non-merge commits during the last 8 day(s) which contain a total of 6 files changed, 120 insertions(+), 20 deletions(-). The main changes are: 1) Fix RCU usage in task_cls_state() for BPF programs using helpers like bpf_get_cgroup_classid_curr() outside of networking, from Charalampos Mitrodimas. 2) Fix a sockmap race between map_update and a pending workqueue from an earlier map_delete freeing the old psock where both pointed to the same psock->sk, from Jiayuan Chen. 3) Fix a data corruption issue when using bpf_msg_pop_data() in kTLS which failed to recalculate the ciphertext length, also from Jiayuan Chen. 4) Remove xdp_redirect_map{,_err} trace events since they are unused and also hide XDP trace events under CONFIG_BPF_SYSCALL, from Steven Rostedt. * tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: xdp: tracing: Hide some xdp events under CONFIG_BPF_SYSCALL xdp: Remove unused events xdp_redirect_map and xdp_redirect_map_err net, bpf: Fix RCU usage in task_cls_state() for BPF programs selftests/bpf: Add test to cover ktls with bpf_msg_pop_data bpf, ktls: Fix data corruption when using bpf_msg_pop_data() in ktls bpf, sockmap: Fix psock incorrectly pointing to sk ==================== Link: https://patch.msgid.link/20250626230111.24772-1-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Jakub Kicinski
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28aa52b618 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.16-rc4). Conflicts: Documentation/netlink/specs/mptcp_pm.yaml |
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Zhang Yi
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f4265b8d32 |
ext4: add FALLOC_FL_WRITE_ZEROES support
Add support for FALLOC_FL_WRITE_ZEROES if the underlying device enable the unmap write zeroes operation. This first allocates blocks as unwritten, then issues a zero command outside of the running journal handle, and finally converts them to a written state. Signed-off-by: Zhang Yi <yi.zhang@huawei.com> Link: https://lore.kernel.org/20250619111806.3546162-10-yi.zhang@huaweicloud.com Reviewed-by: "Martin K. Petersen" <martin.petersen@oracle.com> Signed-off-by: Christian Brauner <brauner@kernel.org> |
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Liam Merwick
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741e595f02 |
KVM: Add trace_kvm_vm_set_mem_attributes()
Add a tracing function that, for a guest memory range, displays the start and end addresses plus the per-page attributes being set. Signed-off-by: Liam Merwick <liam.merwick@oracle.com> Reviewed-by: Pankaj Gupta <pankaj.gupta@amd.com> Link: https://lore.kernel.org/r/20250609091121.2497429-3-liam.merwick@oracle.com Signed-off-by: Sean Christopherson <seanjc@google.com> |
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Sean Christopherson
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141db6cd79 |
KVM: Squash two CONFIG_HAVE_KVM_IRQCHIP #ifdefs into one
Squash two #idef CONFIG_HAVE_KVM_IRQCHIP regions in KVM's trace events, as the only code outside of the #idefs depends on CONFIG_KVM_IOAPIC, and that Kconfig only exists for x86, which unconditionally selects HAVE_KVM_IRQCHIP. No functional change intended. Acked-by: Kai Huang <kai.huang@intel.com> Link: https://lore.kernel.org/r/20250611213557.294358-16-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com> |
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Sean Christopherson
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628a27731e |
KVM: x86: Add CONFIG_KVM_IOAPIC to allow disabling in-kernel I/O APIC
Add a Kconfig to allow building KVM without support for emulating a I/O APIC, PIC, and PIT, which is desirable for deployments that effectively don't support a fully in-kernel IRQ chip, i.e. never expect any VMM to create an in-kernel I/O APIC. E.g. compiling out support eliminates a few thousand lines of guest-facing code and gives security folks warm fuzzies. As a bonus, wrapping relevant paths with CONFIG_KVM_IOAPIC #ifdefs makes it much easier for readers to understand which bits and pieces exist specifically for fully in-kernel IRQ chips. Opportunistically convert all two in-kernel uses of __KVM_HAVE_IOAPIC to CONFIG_KVM_IOAPIC, e.g. rather than add a second #ifdef to generate a stub for kvm_arch_post_irq_routing_update(). Acked-by: Kai Huang <kai.huang@intel.com> Link: https://lore.kernel.org/r/20250611213557.294358-15-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com> |
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Sean Christopherson
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2c938850d9 |
KVM: Move x86-only tracepoints to x86's trace.h
Move the I/O APIC tracepoints and trace_kvm_msi_set_irq() to x86, as __KVM_HAVE_IOAPIC is just code for "x86", and trace_kvm_msi_set_irq() isn't unique to I/O APIC emulation. Opportunistically clean up the absurdly messy #includes in ioapic.c. No functional change intended. Acked-by: Kai Huang <kai.huang@intel.com> Link: https://lore.kernel.org/r/20250611213557.294358-14-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com> |
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Gao Xiang
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30b5844480 |
erofs: remove unused trace event erofs_destroy_inode
The trace event `erofs_destroy_inode` was added but remains unused. This
unused event contributes approximately 5KB to the kernel module size.
Reported-by: Steven Rostedt <rostedt@goodmis.org>
Closes: https://lore.kernel.org/r/20250612224906.15000244@batman.local.home
Fixes:
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Shakeel Butt
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6af89c6ca7 |
cgroup: remove per-cpu per-subsystem locks
The rstat update side used to insert the cgroup whose stats are updated in the update tree and the read side flush the update tree to get the latest uptodate stats. The per-cpu per-subsystem locks were used to synchronize the update and flush side. However now the update side does not access update tree but uses per-cpu lockless lists. So there is no need for locks to synchronize update and flush side. Let's remove them. Suggested-by: JP Kobryn <inwardvessel@gmail.com> Signed-off-by: Shakeel Butt <shakeel.butt@linux.dev> Tested-by: JP Kobryn <inwardvessel@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org> |
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Steven Rostedt
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3cfbde048b |
net/tcp_ao: tracing: Hide tcp_ao events under CONFIG_TCP_AO
Several of the tcp_ao events are only called when CONFIG_TCP_AO is defined. As each event can take up to 5K regardless if they are used or not, it's best not to define them when they are not used. Add #ifdef around these events when they are not used. Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250612094616.4222daf0@batman.local.home Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Tvrtko Ursulin
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506aa8b02a |
dma-fence: Add safe access helpers and document the rules
Dma-fence objects currently suffer from a potential use after free problem where fences exported to userspace and other drivers can outlive the exporting driver, or the associated data structures. The discussion on how to address this concluded that adding reference counting to all the involved objects is not desirable, since it would need to be very wide reaching and could cause unloadable drivers if another entity would be holding onto a signaled fence reference potentially indefinitely. This patch enables the safe access by introducing and documenting a contract between fence exporters and users. It documents a set of contraints and adds helpers which a) drivers with potential to suffer from the use after free must use and b) users of the dma-fence API must use as well. Premise of the design has multiple sides: 1. Drivers (fence exporters) MUST ensure a RCU grace period between signalling a fence and freeing the driver private data associated with it. The grace period does not have to follow the signalling immediately but HAS to happen before data is freed. 2. Users of the dma-fence API marked with such requirement MUST contain the complete access to the data within a single code block guarded by rcu_read_lock() and rcu_read_unlock(). The combination of the two ensures that whoever sees the DMA_FENCE_FLAG_SIGNALED_BIT not set is guaranteed to have access to a valid fence->lock and valid data potentially accessed by the fence->ops virtual functions, until the call to rcu_read_unlock(). 3. Module unload (fence->ops) disappearing is for now explicitly not handled. That would required a more complex protection, possibly needing SRCU instead of RCU to handle callers such as dma_fence_release() and dma_fence_wait_timeout(), where race between dma_fence_enable_sw_signaling, signalling, and dereference of fence->ops->wait() would need a sleeping SRCU context. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Tvrtko Ursulin <tursulin@ursulin.net> Link: https://lore.kernel.org/r/20250610164226.10817-4-tvrtko.ursulin@igalia.com |
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Steven Rostedt
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16f3c7ad88 |
xdp: tracing: Hide some xdp events under CONFIG_BPF_SYSCALL
The events xdp_cpumap_kthread, xdp_cpumap_enqueue and xdp_devmap_xmit are only called when CONFIG_BPF_SYSCALL is defined. As each event can take up to 5K regardless if they are used or not, it's best not to define them when they are not used. Add #ifdef around these events when they are not used. Acked-by: Jesper Dangaard Brouer <hawk@kernel.org> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> Link: https://lore.kernel.org/r/20250612182023.78397b76@batman.local.home Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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Steven Rostedt
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a9a5f41b04 |
xdp: Remove unused events xdp_redirect_map and xdp_redirect_map_err
Each TRACE_EVENT() defined can take up around 5K of text and meta data regardless if they are used or not. New code is being developed that will warn when a tracepoint is defined but not used. The trace events xdp_redirect_map and xdp_redirect_map_err are defined but not used, but there's also a comment that states these are kept around for backward compatibility. Which is interesting because since they are not used, any old BPF program that expects them to exist will get incorrect data (no data) when they use them. It's worse than not working, it's silently failing. Remove them as they will soon cause warnings, or if they really need to stick around, then code needs to be added to use them. Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> Reviewed-by: Toke Høiland-Jørgensen <toke@kernel.org> Acked-by: Jesper Dangaard Brouer <hawk@kernel.org> Link: https://lore.kernel.org/r/20250611155615.0c2cf61c@batman.local.home Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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Thomas Zimmermann
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c598d5eb9f |
Merge drm/drm-next into drm-misc-next
Backmerging to forward to v6.16-rc1 Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> |
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Kassey Li
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9d2c232d57 |
scsi: trace: Show rtn in string for scsi_dispatch_cmd_error()
By default the scsi_dispatch_cmd_error() return value is displayed in decimal: kworker/3:1H-183 [003] .... 51.035474: scsi_dispatch_cmd_error: host_no=0 channel=0 id=0 lun=4 data_sgl=1 prot_sgl=0 prot_op=SCSI_PROT_NORMAL cmnd=(READ_10 lba=3907214 txlen=1 protect=0 raw=28 00 00 3b 9e 8e 00 00 01 00) rtn=4181 However, these numbers are not particularly helpful wrt. debugging errors. Especially since the kernel code consistently uses the following defines in hexadecimal: SCSI_MLQUEUE_HOST_BUSY 0x1055 SCSI_MLQUEUE_DEVICE_BUSY 0x1056 SCSI_MLQUEUE_EH_RETRY 0x1057 SCSI_MLQUEUE_TARGET_BUSY 0x1058 Switch to using the string form of these values in the trace output: dd-1059 [007] ..... 31.689529: scsi_dispatch_cmd_error: host_no=0 channel=0 id=0 lun=4 data_sgl=65 prot_sgl=0 prot_op=SCSI_PROT_NORMAL driver_tag=23 scheduler_tag=117 cmnd=(READ_10 lba=0 txlen=128 protect=0 raw=28 00 00 00 00 00 00 00 80 00) rtn=SCSI_MLQUEUE_DEVICE_BUSY Signed-off-by: Kassey Li <quic_yingangl@quicinc.com> Link: https://lore.kernel.org/r/20250521011711.1983625-1-quic_yingangl@quicinc.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> |
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Linus Torvalds
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538c429a4b |
tracing fixes:
- Fix regression of waiting a long time on updating trace event filters When the faultable trace points were added, it needed task trace RCU synchronization. This was added to the tracepoint_synchronize_unregister() function. The filter logic always called this function whenever it updated the trace event filters before freeing the old filters. This increased the time of "trace-cmd record" from taking 13 seconds to running over 2 minutes to complete. Move the freeing of the filters to call_rcu*() logic, which brings the time back down to 13 seconds. - Fix ring_buffer_subbuf_order_set() error path lock protection The error path of the ring_buffer_subbuf_order_set() released the mutex too early and allowed subsequent accesses to setting the subbuffer size to corrupt the data and cause a bug. By moving the mutex locking to the end of the error path, it prevents the reentrant access to the critical data and also allows the function to convert the taking of the mutex over to the guard() logic. - Remove unused power management clock events The clock events were added in 2010 for power management. In 2011 arm used them. In 2013 the code they were used in was removed. These events have been wasting memory since then. - Fix sparse warnings There was a few places that sparse warned about trace_events_filter.c where file->filter was referenced directly, but it is annotated with an __rcu tag. Use the helper functions and fix them up to use rcu_dereference() properly. -----BEGIN PGP SIGNATURE----- iIoEABYKADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCaEST0xQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qgdSAPoD7L17oeiP5KQkM0wPuPBz0tmJF7XE 2VmHp1lBu5rYwgEAyHTD7SqWvInMMp9sGt5tzkByXpOsYC65/RprkbFpXwA= =s4wK -----END PGP SIGNATURE----- Merge tag 'trace-v6.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull more tracing fixes from Steven Rostedt: - Fix regression of waiting a long time on updating trace event filters When the faultable trace points were added, it needed task trace RCU synchronization. This was added to the tracepoint_synchronize_unregister() function. The filter logic always called this function whenever it updated the trace event filters before freeing the old filters. This increased the time of "trace-cmd record" from taking 13 seconds to running over 2 minutes to complete. Move the freeing of the filters to call_rcu*() logic, which brings the time back down to 13 seconds. - Fix ring_buffer_subbuf_order_set() error path lock protection The error path of the ring_buffer_subbuf_order_set() released the mutex too early and allowed subsequent accesses to setting the subbuffer size to corrupt the data and cause a bug. By moving the mutex locking to the end of the error path, it prevents the reentrant access to the critical data and also allows the function to convert the taking of the mutex over to the guard() logic. - Remove unused power management clock events The clock events were added in 2010 for power management. In 2011 arm used them. In 2013 the code they were used in was removed. These events have been wasting memory since then. - Fix sparse warnings There was a few places that sparse warned about trace_events_filter.c where file->filter was referenced directly, but it is annotated with an __rcu tag. Use the helper functions and fix them up to use rcu_dereference() properly. * tag 'trace-v6.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: tracing: Add rcu annotation around file->filter accesses tracing: PM: Remove unused clock events ring-buffer: Fix buffer locking in ring_buffer_subbuf_order_set() tracing: Fix regression of filter waiting a long time on RCU synchronization |
||
|
Steven Rostedt
|
de6fdc076d |
tracing: PM: Remove unused clock events
The events clock_enable, clock_disable, and clock_set_rate were added back
in 2010. In 2011 they were used by the arm architecture but removed in
2013. These events add around 7K of memory which was wasted for the last 12
years.
Remove them.
Link: https://lore.kernel.org/all/20250529130138.544ffec4@gandalf.local.home/
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Kajetan Puchalski <kajetan.puchalski@arm.com>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/20250605162106.1a459dad@gandalf.local.home
Fixes:
|
||
|
Linus Torvalds
|
5abc7438f1 |
NFS Clent Updates for Linux 6.16
New Features:
* Implement the Sunrpc rfc2203 rpcsec_gss sequence number cache
* Add support for FALLOC_FL_ZERO_RANGE on NFS v4.2
* Add a localio sysfs attribute
Stable Fixes:
* Fix double-unlock bug in nfs_return_empty_folio()
* Don't check for OPEN feature support in v4.1
* Always probe for LOCALIO support asynchronously
* Prevent hang on NFS mounts with xprtsec=[m]tls
Other Bugfixes:
* xattr handlers should check for absent nfs filehandles
* Fix setattr caching of TIME_[MODIFY|ACCESS]_SET when timestamps are delegated
* Fix listxattr to return selinux security labels
* Connect to NFSv3 DS using TLS if MDS connection uses TLS
* Clear SB_RDONLY before getting a superblock, and ignore when remounting
* Fix incorrect handling of NFS error codes in nfs4_do_mkdir()
* Various nfs_localio fixes from Neil Brown that include fixing an
rcu compilation error found by older gcc versions.
* Update stats on flexfiles pNFS DSes when receiving NFS4ERR_DELAY
Cleanups:
* Add a refcount tracker for struct net in the nfs_client
* Allow FREE_STATEID to clean up delegations
* Always set NLINK even if the server doesn't support it
* Cleanups to the NFS folio writeback code
* Remove dead code from xs_tcp_tls_setup_socket()
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Merge tag 'nfs-for-6.16-1' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS clent updates from Anna Schumaker:
"New Features:
- Implement the Sunrpc rfc2203 rpcsec_gss sequence number cache
- Add support for FALLOC_FL_ZERO_RANGE on NFS v4.2
- Add a localio sysfs attribute
Stable Fixes:
- Fix double-unlock bug in nfs_return_empty_folio()
- Don't check for OPEN feature support in v4.1
- Always probe for LOCALIO support asynchronously
- Prevent hang on NFS mounts with xprtsec=[m]tls
Other Bugfixes:
- xattr handlers should check for absent nfs filehandles
- Fix setattr caching of TIME_[MODIFY|ACCESS]_SET when timestamps are
delegated
- Fix listxattr to return selinux security labels
- Connect to NFSv3 DS using TLS if MDS connection uses TLS
- Clear SB_RDONLY before getting a superblock, and ignore when
remounting
- Fix incorrect handling of NFS error codes in nfs4_do_mkdir()
- Various nfs_localio fixes from Neil Brown that include fixing an
rcu compilation error found by older gcc versions.
- Update stats on flexfiles pNFS DSes when receiving NFS4ERR_DELAY
Cleanups:
- Add a refcount tracker for struct net in the nfs_client
- Allow FREE_STATEID to clean up delegations
- Always set NLINK even if the server doesn't support it
- Cleanups to the NFS folio writeback code
- Remove dead code from xs_tcp_tls_setup_socket()"
* tag 'nfs-for-6.16-1' of git://git.linux-nfs.org/projects/anna/linux-nfs: (30 commits)
flexfiles/pNFS: update stats on NFS4ERR_DELAY for v4.1 DSes
nfs_localio: change nfsd_file_put_local() to take a pointer to __rcu pointer
nfs_localio: protect race between nfs_uuid_put() and nfs_close_local_fh()
nfs_localio: duplicate nfs_close_local_fh()
nfs_localio: simplify interface to nfsd for getting nfsd_file
nfs_localio: always hold nfsd net ref with nfsd_file ref
nfs_localio: use cmpxchg() to install new nfs_file_localio
SUNRPC: Remove dead code from xs_tcp_tls_setup_socket()
SUNRPC: Prevent hang on NFS mount with xprtsec=[m]tls
nfs: fix incorrect handling of large-number NFS errors in nfs4_do_mkdir()
nfs: ignore SB_RDONLY when remounting nfs
nfs: clear SB_RDONLY before getting superblock
NFS: always probe for LOCALIO support asynchronously
pnfs/flexfiles: connect to NFSv3 DS using TLS if MDS connection uses TLS
NFS: add localio to sysfs
nfs: use writeback_iter directly
nfs: refactor nfs_do_writepage
nfs: don't return AOP_WRITEPAGE_ACTIVATE from nfs_do_writepage
nfs: fold nfs_page_async_flush into nfs_do_writepage
NFSv4: Always set NLINK even if the server doesn't support it
...
|
||
|
Linus Torvalds
|
70087d2200 |
tracing fixes:
- Fix UAF in module unload in ftrace when there's a bug in the module If a module is buggy and triggers ftrace_disable which is set when an anomaly is detected, when it gets unloaded it doesn't free the hooks into kallsyms, and when a kallsyms lookup is performed it may access the mod->modname field and crash via UAF. Fix this by still freeing the mod_maps that are attached to kallsyms on module unload regardless if ftrace_disable is set or not. - Do not bother allocating mod_maps for kallsyms if ftrace_disable is set - Remove unused trace events When a trace event or tracepoint is created but not used, it still creates the code and data structures needed for that trace event. This just wastes memory. A patch is being worked on to warn when a trace event is created but not used: https://lore.kernel.org/linux-trace-kernel/20250529130138.544ffec4@gandalf.local.home/ Remove the trace events that are created but not used. This does not remove trace events that are created but are not used due configs not being set. That will be handled later. This only removes events that have no user under any config. -----BEGIN PGP SIGNATURE----- iIoEABYKADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCaD9LohQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qvrRAP4xRH01dQ3HkNF3mtKXuHEh8NbTlCEE 8wYyiI8ttjVdGAEAzq5sx2BQN2Of4RLOwYtxJSigZgmJjYYGmobeHISPjwc= =d2Cp -----END PGP SIGNATURE----- Merge tag 'trace-v6.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull tracing fixes from Steven Rostedt: - Fix UAF in module unload in ftrace when there's a bug in the module If a module is buggy and triggers ftrace_disable which is set when an anomaly is detected, when it gets unloaded it doesn't free the hooks into kallsyms, and when a kallsyms lookup is performed it may access the mod->modname field and crash via UAF. Fix this by still freeing the mod_maps that are attached to kallsyms on module unload regardless if ftrace_disable is set or not. - Do not bother allocating mod_maps for kallsyms if ftrace_disable is set - Remove unused trace events When a trace event or tracepoint is created but not used, it still creates the code and data structures needed for that trace event. This just wastes memory. Remove the trace events that are created but not used. This does not remove trace events that are created but are not used due configs not being set. That will be handled later. This only removes events that have no user under any config. * tag 'trace-v6.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: fsdax: Remove unused trace events for dax insert mapping genirq/matrix: Remove unused irq_matrix_alloc_reserved tracepoint xdp: Remove unused mem_return_failed event ftrace: Don't allocate ftrace module map if ftrace is disabled ftrace: Fix UAF when lookup kallsym after ftrace disabled |
||
|
Steven Rostedt
|
a4a45a9a72 |
fsdax: Remove unused trace events for dax insert mapping
When the dax_fault_actor() helper was factored out, it removed the calls
to the dax_pmd_insert_mapping and dax_insert_mapping events but never
removed the events themselves. As each event created takes up memory
(roughly 5K each), this is a waste as it is never used.
Remove the unused dax_pmd_insert_mapping and dax_insert_mapping trace
events.
Link: https://lore.kernel.org/all/20250529130138.544ffec4@gandalf.local.home/
Cc: Shiyang Ruan <ruansy.fnst@fujitsu.com>
Cc: "Darrick J. Wong" <djwong@kernel.org>
Cc: Ross Zwisler <zwisler@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: https://lore.kernel.org/20250529152211.688800c9@gandalf.local.home
Fixes:
|
||
|
Tvrtko Ursulin
|
ecec875a6c |
dma-fence: Add helpers for accessing driver and timeline name
Add some helpers in order to enable preventing dma-fence users accessing the implementation details directly and make the implementation itself use them. This will also enable later adding some asserts to a consolidated location. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Tvrtko Ursulin <tursulin@ursulin.net> Link: https://lore.kernel.org/r/20250515095004.28318-4-tvrtko.ursulin@igalia.com |
||
|
Linus Torvalds
|
0fb34422b5 |
vfs-6.16-rc1.netfs
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaDBPUAAKCRCRxhvAZXjc ouMEAQCrviYPG/WMtPTH7nBIbfVQTfNEXt/TvN7u7OjXb+RwRAEAwe9tLy4GrS/t GuvUPWAthbhs77LTvxj6m3Gf49BOVgQ= =6FqN -----END PGP SIGNATURE----- Merge tag 'vfs-6.16-rc1.netfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull netfs updates from Christian Brauner: - The main API document has been extensively updated/rewritten - Fix an oops in write-retry due to mis-resetting the I/O iterator - Fix the recording of transferred bytes for short DIO reads - Fix a request's work item to not require a reference, thereby avoiding the need to get rid of it in BH/IRQ context - Fix waiting and waking to be consistent about the waitqueue used - Remove NETFS_SREQ_SEEK_DATA_READ, NETFS_INVALID_WRITE, NETFS_ICTX_WRITETHROUGH, NETFS_READ_HOLE_CLEAR, NETFS_RREQ_DONT_UNLOCK_FOLIOS, and NETFS_RREQ_BLOCKED - Reorder structs to eliminate holes - Remove netfs_io_request::ractl - Only provide proc_link field if CONFIG_PROC_FS=y - Remove folio_queue::marks3 - Fix undifferentiation of DIO reads from unbuffered reads * tag 'vfs-6.16-rc1.netfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: netfs: Fix undifferentiation of DIO reads from unbuffered reads netfs: Fix wait/wake to be consistent about the waitqueue used netfs: Fix the request's work item to not require a ref netfs: Fix setting of transferred bytes with short DIO reads netfs: Fix oops in write-retry from mis-resetting the subreq iterator fs/netfs: remove unused flag NETFS_RREQ_BLOCKED fs/netfs: remove unused flag NETFS_RREQ_DONT_UNLOCK_FOLIOS folio_queue: remove unused field `marks3` fs/netfs: declare field `proc_link` only if CONFIG_PROC_FS=y fs/netfs: remove `netfs_io_request.ractl` fs/netfs: reorder struct fields to eliminate holes fs/netfs: remove unused enum choice NETFS_READ_HOLE_CLEAR fs/netfs: remove unused flag NETFS_ICTX_WRITETHROUGH fs/netfs: remove unused source NETFS_INVALID_WRITE fs/netfs: remove unused flag NETFS_SREQ_SEEK_DATA_READ |
||
|
Steven Rostedt
|
167d7ede00 |
genirq/matrix: Remove unused irq_matrix_alloc_reserved tracepoint
The tracepoint irq_matrix_alloc_reserved was added but never used.
Remove it.
Link: https://lore.kernel.org/all/20250529130138.544ffec4@gandalf.local.home/
Cc: Juergen Gross <jgross@suse.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Link: https://lore.kernel.org/20250529135739.26e5c075@gandalf.local.home
Fixes:
|
||
|
Steven Rostedt
|
e27e43a5cb |
xdp: Remove unused mem_return_failed event
The change to allow page_pool to handle its own page destruction instead
of relying on XDP removed the trace_mem_return_failed() tracepoint caller,
but did not remove the mem_return_failed trace event. As trace events take
up memory when they are created regardless of if they are used or not,
having this unused event around wastes around 5K of memory.
Remove the unused event.
Link: https://lore.kernel.org/all/20250529130138.544ffec4@gandalf.local.home/
Cc: netdev <netdev@vger.kernel.org>
Cc: Jonathan Lemon <jonathan.lemon@gmail.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Link: https://lore.kernel.org/20250529160550.1f888b15@gandalf.local.home
Fixes:
|
||
|
Linus Torvalds
|
00c010e130 |
- The 11 patch series "Add folio_mk_pte()" from Matthew Wilcox
simplifies the act of creating a pte which addresses the first page in a folio and reduces the amount of plumbing which architecture must implement to provide this. - The 8 patch series "Misc folio patches for 6.16" from Matthew Wilcox is a shower of largely unrelated folio infrastructure changes which clean things up and better prepare us for future work. - The 3 patch series "memory,x86,acpi: hotplug memory alignment advisement" from Gregory Price adds early-init code to prevent x86 from leaving physical memory unused when physical address regions are not aligned to memory block size. - The 2 patch series "mm/compaction: allow more aggressive proactive compaction" from Michal Clapinski provides some tuning of the (sadly, hard-coded (more sadly, not auto-tuned)) thresholds for our invokation of proactive compaction. In a simple test case, the reduction of a guest VM's memory consumption was dramatic. - The 8 patch series "Minor cleanups and improvements to swap freeing code" from Kemeng Shi provides some code cleaups and a small efficiency improvement to this part of our swap handling code. - The 6 patch series "ptrace: introduce PTRACE_SET_SYSCALL_INFO API" from Dmitry Levin adds the ability for a ptracer to modify syscalls arguments. At this time we can alter only "system call information that are used by strace system call tampering, namely, syscall number, syscall arguments, and syscall return value. This series should have been incorporated into mm.git's "non-MM" branch, but I goofed. - The 3 patch series "fs/proc: extend the PAGEMAP_SCAN ioctl to report guard regions" from Andrei Vagin extends the info returned by the PAGEMAP_SCAN ioctl against /proc/pid/pagemap. This permits CRIU to more efficiently get at the info about guard regions. - The 2 patch series "Fix parameter passed to page_mapcount_is_type()" from Gavin Shan implements that fix. No runtime effect is expected because validate_page_before_insert() happens to fix up this error. - The 3 patch series "kernel/events/uprobes: uprobe_write_opcode() rewrite" from David Hildenbrand basically brings uprobe text poking into the current decade. Remove a bunch of hand-rolled implementation in favor of using more current facilities. - The 3 patch series "mm/ptdump: Drop assumption that pxd_val() is u64" from Anshuman Khandual provides enhancements and generalizations to the pte dumping code. This might be needed when 128-bit Page Table Descriptors are enabled for ARM. - The 12 patch series "Always call constructor for kernel page tables" from Kevin Brodsky "ensures that the ctor/dtor is always called for kernel pgtables, as it already is for user pgtables". This permits the addition of more functionality such as "insert hooks to protect page tables". This change does result in various architectures performing unnecesary work, but this is fixed up where it is anticipated to occur. - The 9 patch series "Rust support for mm_struct, vm_area_struct, and mmap" from Alice Ryhl adds plumbing to permit Rust access to core MM structures. - The 3 patch series "fix incorrectly disallowed anonymous VMA merges" from Lorenzo Stoakes takes advantage of some VMA merging opportunities which we've been missing for 15 years. - The 4 patch series "mm/madvise: batch tlb flushes for MADV_DONTNEED and MADV_FREE" from SeongJae Park optimizes process_madvise()'s TLB flushing. Instead of flushing each address range in the provided iovec, we batch the flushing across all the iovec entries. The syscall's cost was approximately halved with a microbenchmark which was designed to load this particular operation. - The 6 patch series "Track node vacancy to reduce worst case allocation counts" from Sidhartha Kumar makes the maple tree smarter about its node preallocation. stress-ng mmap performance increased by single-digit percentages and the amount of unnecessarily preallocated memory was dramaticelly reduced. - The 3 patch series "mm/gup: Minor fix, cleanup and improvements" from Baoquan He removes a few unnecessary things which Baoquan noted when reading the code. - The 3 patch series ""Enhance sysfs handling for memory hotplug in weighted interleave" from Rakie Kim "enhances the weighted interleave policy in the memory management subsystem by improving sysfs handling, fixing memory leaks, and introducing dynamic sysfs updates for memory hotplug support". Fixes things on error paths which we are unlikely to hit. - The 7 patch series "mm/damon: auto-tune DAMOS for NUMA setups including tiered memory" from SeongJae Park introduces new DAMOS quota goal metrics which eliminate the manual tuning which is required when utilizing DAMON for memory tiering. - The 5 patch series "mm/vmalloc.c: code cleanup and improvements" from Baoquan He provides cleanups and small efficiency improvements which Baoquan found via code inspection. - The 2 patch series "vmscan: enforce mems_effective during demotion" from Gregory Price "changes reclaim to respect cpuset.mems_effective during demotion when possible". because "presently, reclaim explicitly ignores cpuset.mems_effective when demoting, which may cause the cpuset settings to violated." "This is useful for isolating workloads on a multi-tenant system from certain classes of memory more consistently." - The 2 patch series ""Clean up split_huge_pmd_locked() and remove unnecessary folio pointers" from Gavin Guo provides minor cleanups and efficiency gains in in the huge page splitting and migrating code. - The 3 patch series "Use kmem_cache for memcg alloc" from Huan Yang creates a slab cache for `struct mem_cgroup', yielding improved memory utilization. - The 4 patch series "add max arg to swappiness in memory.reclaim and lru_gen" from Zhongkun He adds a new "max" argument to the "swappiness=" argument for memory.reclaim MGLRU's lru_gen. This directs proactive reclaim to reclaim from only anon folios rather than file-backed folios. - The 17 patch series "kexec: introduce Kexec HandOver (KHO)" from Mike Rapoport is the first step on the path to permitting the kernel to maintain existing VMs while replacing the host kernel via file-based kexec. At this time only memblock's reserve_mem is preserved. - The 7 patch series "mm: Introduce for_each_valid_pfn()" from David Woodhouse provides and uses a smarter way of looping over a pfn range. By skipping ranges of invalid pfns. - The 2 patch series "sched/numa: Skip VMA scanning on memory pinned to one NUMA node via cpuset.mems" from Libo Chen removes a lot of pointless VMA scanning when a task is pinned a single NUMA mode. Dramatic performance benefits were seen in some real world cases. - The 2 patch series "JFS: Implement migrate_folio for jfs_metapage_aops" from Shivank Garg addresses a warning which occurs during memory compaction when using JFS. - The 4 patch series "move all VMA allocation, freeing and duplication logic to mm" from Lorenzo Stoakes moves some VMA code from kernel/fork.c into the more appropriate mm/vma.c. - The 6 patch series "mm, swap: clean up swap cache mapping helper" from Kairui Song provides code consolidation and cleanups related to the folio_index() function. - The 2 patch series "mm/gup: Cleanup memfd_pin_folios()" from Vishal Moola does that. - The 8 patch series "memcg: Fix test_memcg_min/low test failures" from Waiman Long addresses some bogus failures which are being reported by the test_memcontrol selftest. - The 3 patch series "eliminate mmap() retry merge, add .mmap_prepare hook" from Lorenzo Stoakes commences the deprecation of file_operations.mmap() in favor of the new file_operations.mmap_prepare(). The latter is more restrictive and prevents drivers from messing with things in ways which, amongst other problems, may defeat VMA merging. - The 4 patch series "memcg: decouple memcg and objcg stocks"" from Shakeel Butt decouples the per-cpu memcg charge cache from the objcg's one. This is a step along the way to making memcg and objcg charging NMI-safe, which is a BPF requirement. - The 6 patch series "mm/damon: minor fixups and improvements for code, tests, and documents" from SeongJae Park is "yet another batch of miscellaneous DAMON changes. Fix and improve minor problems in code, tests and documents." - The 7 patch series "memcg: make memcg stats irq safe" from Shakeel Butt converts memcg stats to be irq safe. Another step along the way to making memcg charging and stats updates NMI-safe, a BPF requirement. - The 4 patch series "Let unmap_hugepage_range() and several related functions take folio instead of page" from Fan Ni provides folio conversions in the hugetlb code. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCaDt5qgAKCRDdBJ7gKXxA ju6XAP9nTiSfRz8Cz1n5LJZpFKEGzLpSihCYyR6P3o1L9oe3mwEAlZ5+XAwk2I5x Qqb/UGMEpilyre1PayQqOnct3aSL9Ao= =tYYm -----END PGP SIGNATURE----- Merge tag 'mm-stable-2025-05-31-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull MM updates from Andrew Morton: - "Add folio_mk_pte()" from Matthew Wilcox simplifies the act of creating a pte which addresses the first page in a folio and reduces the amount of plumbing which architecture must implement to provide this. - "Misc folio patches for 6.16" from Matthew Wilcox is a shower of largely unrelated folio infrastructure changes which clean things up and better prepare us for future work. - "memory,x86,acpi: hotplug memory alignment advisement" from Gregory Price adds early-init code to prevent x86 from leaving physical memory unused when physical address regions are not aligned to memory block size. - "mm/compaction: allow more aggressive proactive compaction" from Michal Clapinski provides some tuning of the (sadly, hard-coded (more sadly, not auto-tuned)) thresholds for our invokation of proactive compaction. In a simple test case, the reduction of a guest VM's memory consumption was dramatic. - "Minor cleanups and improvements to swap freeing code" from Kemeng Shi provides some code cleaups and a small efficiency improvement to this part of our swap handling code. - "ptrace: introduce PTRACE_SET_SYSCALL_INFO API" from Dmitry Levin adds the ability for a ptracer to modify syscalls arguments. At this time we can alter only "system call information that are used by strace system call tampering, namely, syscall number, syscall arguments, and syscall return value. This series should have been incorporated into mm.git's "non-MM" branch, but I goofed. - "fs/proc: extend the PAGEMAP_SCAN ioctl to report guard regions" from Andrei Vagin extends the info returned by the PAGEMAP_SCAN ioctl against /proc/pid/pagemap. This permits CRIU to more efficiently get at the info about guard regions. - "Fix parameter passed to page_mapcount_is_type()" from Gavin Shan implements that fix. No runtime effect is expected because validate_page_before_insert() happens to fix up this error. - "kernel/events/uprobes: uprobe_write_opcode() rewrite" from David Hildenbrand basically brings uprobe text poking into the current decade. Remove a bunch of hand-rolled implementation in favor of using more current facilities. - "mm/ptdump: Drop assumption that pxd_val() is u64" from Anshuman Khandual provides enhancements and generalizations to the pte dumping code. This might be needed when 128-bit Page Table Descriptors are enabled for ARM. - "Always call constructor for kernel page tables" from Kevin Brodsky ensures that the ctor/dtor is always called for kernel pgtables, as it already is for user pgtables. This permits the addition of more functionality such as "insert hooks to protect page tables". This change does result in various architectures performing unnecesary work, but this is fixed up where it is anticipated to occur. - "Rust support for mm_struct, vm_area_struct, and mmap" from Alice Ryhl adds plumbing to permit Rust access to core MM structures. - "fix incorrectly disallowed anonymous VMA merges" from Lorenzo Stoakes takes advantage of some VMA merging opportunities which we've been missing for 15 years. - "mm/madvise: batch tlb flushes for MADV_DONTNEED and MADV_FREE" from SeongJae Park optimizes process_madvise()'s TLB flushing. Instead of flushing each address range in the provided iovec, we batch the flushing across all the iovec entries. The syscall's cost was approximately halved with a microbenchmark which was designed to load this particular operation. - "Track node vacancy to reduce worst case allocation counts" from Sidhartha Kumar makes the maple tree smarter about its node preallocation. stress-ng mmap performance increased by single-digit percentages and the amount of unnecessarily preallocated memory was dramaticelly reduced. - "mm/gup: Minor fix, cleanup and improvements" from Baoquan He removes a few unnecessary things which Baoquan noted when reading the code. - ""Enhance sysfs handling for memory hotplug in weighted interleave" from Rakie Kim "enhances the weighted interleave policy in the memory management subsystem by improving sysfs handling, fixing memory leaks, and introducing dynamic sysfs updates for memory hotplug support". Fixes things on error paths which we are unlikely to hit. - "mm/damon: auto-tune DAMOS for NUMA setups including tiered memory" from SeongJae Park introduces new DAMOS quota goal metrics which eliminate the manual tuning which is required when utilizing DAMON for memory tiering. - "mm/vmalloc.c: code cleanup and improvements" from Baoquan He provides cleanups and small efficiency improvements which Baoquan found via code inspection. - "vmscan: enforce mems_effective during demotion" from Gregory Price changes reclaim to respect cpuset.mems_effective during demotion when possible. because presently, reclaim explicitly ignores cpuset.mems_effective when demoting, which may cause the cpuset settings to violated. This is useful for isolating workloads on a multi-tenant system from certain classes of memory more consistently. - "Clean up split_huge_pmd_locked() and remove unnecessary folio pointers" from Gavin Guo provides minor cleanups and efficiency gains in in the huge page splitting and migrating code. - "Use kmem_cache for memcg alloc" from Huan Yang creates a slab cache for `struct mem_cgroup', yielding improved memory utilization. - "add max arg to swappiness in memory.reclaim and lru_gen" from Zhongkun He adds a new "max" argument to the "swappiness=" argument for memory.reclaim MGLRU's lru_gen. This directs proactive reclaim to reclaim from only anon folios rather than file-backed folios. - "kexec: introduce Kexec HandOver (KHO)" from Mike Rapoport is the first step on the path to permitting the kernel to maintain existing VMs while replacing the host kernel via file-based kexec. At this time only memblock's reserve_mem is preserved. - "mm: Introduce for_each_valid_pfn()" from David Woodhouse provides and uses a smarter way of looping over a pfn range. By skipping ranges of invalid pfns. - "sched/numa: Skip VMA scanning on memory pinned to one NUMA node via cpuset.mems" from Libo Chen removes a lot of pointless VMA scanning when a task is pinned a single NUMA mode. Dramatic performance benefits were seen in some real world cases. - "JFS: Implement migrate_folio for jfs_metapage_aops" from Shivank Garg addresses a warning which occurs during memory compaction when using JFS. - "move all VMA allocation, freeing and duplication logic to mm" from Lorenzo Stoakes moves some VMA code from kernel/fork.c into the more appropriate mm/vma.c. - "mm, swap: clean up swap cache mapping helper" from Kairui Song provides code consolidation and cleanups related to the folio_index() function. - "mm/gup: Cleanup memfd_pin_folios()" from Vishal Moola does that. - "memcg: Fix test_memcg_min/low test failures" from Waiman Long addresses some bogus failures which are being reported by the test_memcontrol selftest. - "eliminate mmap() retry merge, add .mmap_prepare hook" from Lorenzo Stoakes commences the deprecation of file_operations.mmap() in favor of the new file_operations.mmap_prepare(). The latter is more restrictive and prevents drivers from messing with things in ways which, amongst other problems, may defeat VMA merging. - "memcg: decouple memcg and objcg stocks"" from Shakeel Butt decouples the per-cpu memcg charge cache from the objcg's one. This is a step along the way to making memcg and objcg charging NMI-safe, which is a BPF requirement. - "mm/damon: minor fixups and improvements for code, tests, and documents" from SeongJae Park is yet another batch of miscellaneous DAMON changes. Fix and improve minor problems in code, tests and documents. - "memcg: make memcg stats irq safe" from Shakeel Butt converts memcg stats to be irq safe. Another step along the way to making memcg charging and stats updates NMI-safe, a BPF requirement. - "Let unmap_hugepage_range() and several related functions take folio instead of page" from Fan Ni provides folio conversions in the hugetlb code. * tag 'mm-stable-2025-05-31-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (285 commits) mm: pcp: increase pcp->free_count threshold to trigger free_high mm/hugetlb: convert use of struct page to folio in __unmap_hugepage_range() mm/hugetlb: refactor __unmap_hugepage_range() to take folio instead of page mm/hugetlb: refactor unmap_hugepage_range() to take folio instead of page mm/hugetlb: pass folio instead of page to unmap_ref_private() memcg: objcg stock trylock without irq disabling memcg: no stock lock for cpu hot-unplug memcg: make __mod_memcg_lruvec_state re-entrant safe against irqs memcg: make count_memcg_events re-entrant safe against irqs memcg: make mod_memcg_state re-entrant safe against irqs memcg: move preempt disable to callers of memcg_rstat_updated memcg: memcg_rstat_updated re-entrant safe against irqs mm: khugepaged: decouple SHMEM and file folios' collapse selftests/eventfd: correct test name and improve messages alloc_tag: check mem_profiling_support in alloc_tag_init Docs/damon: update titles and brief introductions to explain DAMOS selftests/damon/_damon_sysfs: read tried regions directories in order mm/damon/tests/core-kunit: add a test for damos_set_filters_default_reject() mm/damon/paddr: remove unused variable, folio_list, in damon_pa_stat() mm/damon/sysfs-schemes: fix wrong comment on damons_sysfs_quota_goal_metric_strs ... |
||
|
Linus Torvalds
|
d8441523f2 |
f2fs-for-6.16-rc1
In this round, Matthew converted most of page operations to using folio. Beyond
the work, we've applied some performance tunings such as GC and linear lookup,
in addition to enhancing fault injection and sanity checks.
Enhancement:
- large number of folio conversions
- add a control to turn on/off the linear lookup for performance
- tune GC logics for zoned block device
- improve fault injection and sanity checks
Bug fix:
- handle error cases of memory donation
- fix to correct check conditions in f2fs_cross_rename
- fix to skip f2fs_balance_fs() if checkpoint is disabled
- don't over-report free space or inodes in statvfs
- prevent the current section from being selected as a victim during GC
- fix to calculate first_zoned_segno correctly
- fix to avoid inconsistence in between SIT and SSA for zoned block device
As usual, there are several debugging patches and clean-ups as well.
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Merge tag 'f2fs-for-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
"In this round, Matthew converted most of page operations to using
folio. Beyond the work, we've applied some performance tunings such as
GC and linear lookup, in addition to enhancing fault injection and
sanity checks.
Enhancements:
- large number of folio conversions
- add a control to turn on/off the linear lookup for performance
- tune GC logics for zoned block device
- improve fault injection and sanity checks
Bug fixes:
- handle error cases of memory donation
- fix to correct check conditions in f2fs_cross_rename
- fix to skip f2fs_balance_fs() if checkpoint is disabled
- don't over-report free space or inodes in statvfs
- prevent the current section from being selected as a victim during GC
- fix to calculate first_zoned_segno correctly
- fix to avoid inconsistence between SIT and SSA for zoned block device
As usual, there are several debugging patches and clean-ups as well"
* tag 'f2fs-for-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (195 commits)
f2fs: fix to correct check conditions in f2fs_cross_rename
f2fs: use d_inode(dentry) cleanup dentry->d_inode
f2fs: fix to skip f2fs_balance_fs() if checkpoint is disabled
f2fs: clean up to check bi_status w/ BLK_STS_OK
f2fs: introduce is_{meta,node}_folio
f2fs: add ckpt_valid_blocks to the section entry
f2fs: add a method for calculating the remaining blocks in the current segment in LFS mode.
f2fs: introduce FAULT_VMALLOC
f2fs: use vmalloc instead of kvmalloc in .init_{,de}compress_ctx
f2fs: add f2fs_bug_on() in f2fs_quota_read()
f2fs: add f2fs_bug_on() to detect potential bug
f2fs: remove unused sbi argument from checksum functions
f2fs: fix 32-bits hexademical number in fault injection doc
f2fs: don't over-report free space or inodes in statvfs
f2fs: return bool from __write_node_folio
f2fs: simplify return value handling in f2fs_fsync_node_pages
f2fs: always unlock the page in f2fs_write_single_data_page
f2fs: remove wbc->for_reclaim handling
f2fs: return bool from __f2fs_write_meta_folio
f2fs: fix to return correct error number in f2fs_sync_node_pages()
...
|
||
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Linus Torvalds
|
ae5ec8adb8 |
tsm for 6.16
- Add a general sysfs scheme for publishing "Measurement" values
provided by the architecture's TEE Security Manager. Use it to publish
TDX "Runtime Measurement Registers" ("RTMRs") that either maintain a
hash of stored values (similar to a TPM PCR) or provide statically
provisioned data. These measurements are validated by a relying party.
- Reorganize the drivers/virt/coco/ directory for "host" and "guest"
shared infrastructure.
- Fix a configfs-tsm-report unregister bug
- With CONFIG_TSM_MEASUREMENTS joining CONFIG_TSM_REPORTS and in
anticipation of more shared "TSM" infrastructure arriving, rename the
maintainer entry to "TRUSTED SECURITY MODULE (TSM) INFRASTRUCTURE".
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Merge tag 'tsm-for-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/devsec/tsm
Pull trusted security manager (TSM) updates from Dan Williams:
- Add a general sysfs scheme for publishing "Measurement" values
provided by the architecture's TEE Security Manager. Use it to
publish TDX "Runtime Measurement Registers" ("RTMRs") that either
maintain a hash of stored values (similar to a TPM PCR) or provide
statically provisioned data. These measurements are validated by a
relying party.
- Reorganize the drivers/virt/coco/ directory for "host" and "guest"
shared infrastructure.
- Fix a configfs-tsm-report unregister bug
- With CONFIG_TSM_MEASUREMENTS joining CONFIG_TSM_REPORTS and in
anticipation of more shared "TSM" infrastructure arriving, rename the
maintainer entry to "TRUSTED SECURITY MODULE (TSM) INFRASTRUCTURE".
* tag 'tsm-for-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/devsec/tsm:
tsm-mr: Fix init breakage after bin_attrs constification by scoping non-const pointers to init phase
sample/tsm-mr: Fix missing static for sample_report
virt: tdx-guest: Transition to scoped_cond_guard for mutex operations
virt: tdx-guest: Refactor and streamline TDREPORT generation
virt: tdx-guest: Expose TDX MRs as sysfs attributes
x86/tdx: tdx_mcall_get_report0: Return -EBUSY on TDCALL_OPERAND_BUSY error
x86/tdx: Add tdx_mcall_extend_rtmr() interface
tsm-mr: Add tsm-mr sample code
tsm-mr: Add TVM Measurement Register support
configfs-tsm-report: Fix NULL dereference of tsm_ops
coco/guest: Move shared guest CC infrastructure to drivers/virt/coco/guest/
configfs-tsm: Namespace TSM report symbols
|
||
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Linus Torvalds
|
b78f1293f9 |
tracing updates for v6.16:
- Have module addresses get updated in the persistent ring buffer The addresses of the modules from the previous boot are saved in the persistent ring buffer. If the same modules are loaded and an address is in the old buffer points to an address that was both saved in the persistent ring buffer and is loaded in memory, shift the address to point to the address that is loaded in memory in the trace event. - Print function names for irqs off and preempt off callsites When ignoring the print fmt of a trace event and just printing the fields directly, have the fields for preempt off and irqs off events still show the function name (via kallsyms) instead of just showing the raw address. - Clean ups of the histogram code The histogram functions saved over 800 bytes on the stack to process events as they come in. Instead, create per-cpu buffers that can hold this information and have a separate location for each context level (thread, softirq, IRQ and NMI). Also add some more comments to the code. - Add "common_comm" field for histograms Add "common_comm" that uses the current->comm as a field in an event histogram and acts like any of the other fields of the event. - Show "subops" in the enabled_functions file When the function graph infrastructure is used, a subsystem has a "subops" that it attaches its callback function to. Instead of the enabled_functions just showing a function calling the function that calls the subops functions, also show the subops functions that will get called for that function too. - Add "copy_trace_marker" option to instances There are cases where an instance is created for tooling to write into, but the old tooling has the top level instance hardcoded into the application. New tools want to consume the data from an instance and not the top level buffer. By adding a copy_trace_marker option, whenever the top instance trace_marker is written into, a copy of it is also written into the instance with this option set. This allows new tools to read what old tools are writing into the top buffer. If this option is cleared by the top instance, then what is written into the trace_marker is not written into the top instance. This is a way to redirect the trace_marker writes into another instance. - Have tracepoints created by DECLARE_TRACE() use trace_<name>_tp() If a tracepoint is created by DECLARE_TRACE() instead of TRACE_EVENT(), then it will not be exposed via tracefs. Currently there's no way to differentiate in the kernel the tracepoint functions between those that are exposed via tracefs or not. A calling convention has been made manually to append a "_tp" prefix for events created by DECLARE_TRACE(). Instead of doing this manually, force it so that all DECLARE_TRACE() events have this notation. - Use __string() for task->comm in some sched events Instead of hardcoding the comm to be TASK_COMM_LEN in some of the scheduler events use __string() which makes it dynamic. Note, if these events are parsed by user space it they may break, and the event may have to be converted back to the hardcoded size. - Have function graph "depth" be unsigned to the user Internally to the kernel, the "depth" field of the function graph event is signed due to -1 being used for end of boundary. What actually gets recorded in the event itself is zero or positive. Reflect this to user space by showing "depth" as unsigned int and be consistent across all events. - Allow an arbitrary long CPU string to osnoise_cpus_write() The filtering of which CPUs to write to can exceed 256 bytes. If a machine has 256 CPUs, and the filter is to filter every other CPU, the write would take a string larger than 256 bytes. Instead of using a fixed size buffer on the stack that is 256 bytes, allocate it to handle what is passed in. - Stop having ftrace check the per-cpu data "disabled" flag The "disabled" flag in the data structure passed to most ftrace functions is checked to know if tracing has been disabled or not. This flag was added back in 2008 before the ring buffer had its own way to disable tracing. The "disable" flag is now not always set when needed, and the ring buffer flag should be used in all locations where the disabled is needed. Since the "disable" flag is redundant and incorrect, stop using it. Fix up some locations that use the "disable" flag to use the ring buffer info. - Use a new tracer_tracing_disable/enable() instead of data->disable flag There's a few cases that set the data->disable flag to stop tracing, but this flag is not consistently used. It is also an on/off switch where if a function set it and calls another function that sets it, the called function may incorrectly enable it. Use a new trace_tracing_disable() and tracer_tracing_enable() that uses a counter and can be nested. These use the ring buffer flags which are always checked making the disabling more consistent. - Save the trace clock in the persistent ring buffer Save what clock was used for tracing in the persistent ring buffer and set it back to that clock after a reboot. - Remove unused reference to a per CPU data pointer in mmiotrace functions - Remove unused buffer_page field from trace_array_cpu structure - Remove more strncpy() instances - Other minor clean ups and fixes -----BEGIN PGP SIGNATURE----- iIoEABYKADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCaDhiqRQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qkheAQDpyRHoXF1AIoEqyahDax8f3vpZQeCH B/mn+YJmU1wuVgEA7AFALov5SHKv4IzoARz68GXtR0jGhP5D8uebUhUqDAQ= =WmFG -----END PGP SIGNATURE----- Merge tag 'trace-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull tracing updates from Steven Rostedt: - Have module addresses get updated in the persistent ring buffer The addresses of the modules from the previous boot are saved in the persistent ring buffer. If the same modules are loaded and an address is in the old buffer points to an address that was both saved in the persistent ring buffer and is loaded in memory, shift the address to point to the address that is loaded in memory in the trace event. - Print function names for irqs off and preempt off callsites When ignoring the print fmt of a trace event and just printing the fields directly, have the fields for preempt off and irqs off events still show the function name (via kallsyms) instead of just showing the raw address. - Clean ups of the histogram code The histogram functions saved over 800 bytes on the stack to process events as they come in. Instead, create per-cpu buffers that can hold this information and have a separate location for each context level (thread, softirq, IRQ and NMI). Also add some more comments to the code. - Add "common_comm" field for histograms Add "common_comm" that uses the current->comm as a field in an event histogram and acts like any of the other fields of the event. - Show "subops" in the enabled_functions file When the function graph infrastructure is used, a subsystem has a "subops" that it attaches its callback function to. Instead of the enabled_functions just showing a function calling the function that calls the subops functions, also show the subops functions that will get called for that function too. - Add "copy_trace_marker" option to instances There are cases where an instance is created for tooling to write into, but the old tooling has the top level instance hardcoded into the application. New tools want to consume the data from an instance and not the top level buffer. By adding a copy_trace_marker option, whenever the top instance trace_marker is written into, a copy of it is also written into the instance with this option set. This allows new tools to read what old tools are writing into the top buffer. If this option is cleared by the top instance, then what is written into the trace_marker is not written into the top instance. This is a way to redirect the trace_marker writes into another instance. - Have tracepoints created by DECLARE_TRACE() use trace_<name>_tp() If a tracepoint is created by DECLARE_TRACE() instead of TRACE_EVENT(), then it will not be exposed via tracefs. Currently there's no way to differentiate in the kernel the tracepoint functions between those that are exposed via tracefs or not. A calling convention has been made manually to append a "_tp" prefix for events created by DECLARE_TRACE(). Instead of doing this manually, force it so that all DECLARE_TRACE() events have this notation. - Use __string() for task->comm in some sched events Instead of hardcoding the comm to be TASK_COMM_LEN in some of the scheduler events use __string() which makes it dynamic. Note, if these events are parsed by user space it they may break, and the event may have to be converted back to the hardcoded size. - Have function graph "depth" be unsigned to the user Internally to the kernel, the "depth" field of the function graph event is signed due to -1 being used for end of boundary. What actually gets recorded in the event itself is zero or positive. Reflect this to user space by showing "depth" as unsigned int and be consistent across all events. - Allow an arbitrary long CPU string to osnoise_cpus_write() The filtering of which CPUs to write to can exceed 256 bytes. If a machine has 256 CPUs, and the filter is to filter every other CPU, the write would take a string larger than 256 bytes. Instead of using a fixed size buffer on the stack that is 256 bytes, allocate it to handle what is passed in. - Stop having ftrace check the per-cpu data "disabled" flag The "disabled" flag in the data structure passed to most ftrace functions is checked to know if tracing has been disabled or not. This flag was added back in 2008 before the ring buffer had its own way to disable tracing. The "disable" flag is now not always set when needed, and the ring buffer flag should be used in all locations where the disabled is needed. Since the "disable" flag is redundant and incorrect, stop using it. Fix up some locations that use the "disable" flag to use the ring buffer info. - Use a new tracer_tracing_disable/enable() instead of data->disable flag There's a few cases that set the data->disable flag to stop tracing, but this flag is not consistently used. It is also an on/off switch where if a function set it and calls another function that sets it, the called function may incorrectly enable it. Use a new trace_tracing_disable() and tracer_tracing_enable() that uses a counter and can be nested. These use the ring buffer flags which are always checked making the disabling more consistent. - Save the trace clock in the persistent ring buffer Save what clock was used for tracing in the persistent ring buffer and set it back to that clock after a reboot. - Remove unused reference to a per CPU data pointer in mmiotrace functions - Remove unused buffer_page field from trace_array_cpu structure - Remove more strncpy() instances - Other minor clean ups and fixes * tag 'trace-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (36 commits) tracing: Fix compilation warning on arm32 tracing: Record trace_clock and recover when reboot tracing/sched: Use __string() instead of fixed lengths for task->comm tracepoint: Have tracepoints created with DECLARE_TRACE() have _tp suffix tracing: Cleanup upper_empty() in pid_list tracing: Allow the top level trace_marker to write into another instances tracing: Add a helper function to handle the dereference arg in verifier tracing: Remove unnecessary "goto out" that simply returns ret is trigger code tracing: Fix error handling in event_trigger_parse() tracing: Rename event_trigger_alloc() to trigger_data_alloc() tracing: Replace deprecated strncpy() with strscpy() for stack_trace_filter_buf tracing: Remove unused buffer_page field from trace_array_cpu structure tracing: Use atomic_inc_return() for updating "disabled" counter in irqsoff tracer tracing: Convert the per CPU "disabled" counter to local from atomic tracing: branch: Use trace_tracing_is_on_cpu() instead of "disabled" field ring-buffer: Add ring_buffer_record_is_on_cpu() tracing: Do not use per CPU array_buffer.data->disabled for cpumask ftrace: Do not disabled function graph based on "disabled" field tracing: kdb: Use tracer_tracing_on/off() instead of setting per CPU disabled tracing: Use tracer_tracing_disable() instead of "disabled" field for ftrace_dump_one() ... |
||
|
Linus Torvalds
|
1b98f357da |
Networking changes for 6.16.
Core
----
- Implement the Device Memory TCP transmit path, allowing zero-copy
data transmission on top of TCP from e.g. GPU memory to the wire.
- Move all the IPv6 routing tables management outside the RTNL scope,
under its own lock and RCU. The route control path is now 3x times
faster.
- Convert queue related netlink ops to instance lock, reducing
again the scope of the RTNL lock. This improves the control plane
scalability.
- Refactor the software crc32c implementation, removing unneeded
abstraction layers and improving significantly the related
micro-benchmarks.
- Optimize the GRO engine for UDP-tunneled traffic, for a 10%
performance improvement in related stream tests.
- Cover more per-CPU storage with local nested BH locking; this is a
prep work to remove the current per-CPU lock in local_bh_disable()
on PREMPT_RT.
- Introduce and use nlmsg_payload helper, combining buffer bounds
verification with accessing payload carried by netlink messages.
Netfilter
---------
- Rewrite the procfs conntrack table implementation, improving
considerably the dump performance. A lot of user-space tools
still use this interface.
- Implement support for wildcard netdevice in netdev basechain
and flowtables.
- Integrate conntrack information into nft trace infrastructure.
- Export set count and backend name to userspace, for better
introspection.
BPF
---
- BPF qdisc support: BPF-qdisc can be implemented with BPF struct_ops
programs and can be controlled in similar way to traditional qdiscs
using the "tc qdisc" command.
- Refactor the UDP socket iterator, addressing long standing issues
WRT duplicate hits or missed sockets.
Protocols
---------
- Improve TCP receive buffer auto-tuning and increase the default
upper bound for the receive buffer; overall this improves the single
flow maximum thoughput on 200Gbs link by over 60%.
- Add AFS GSSAPI security class to AF_RXRPC; it provides transport
security for connections to the AFS fileserver and VL server.
- Improve TCP multipath routing, so that the sources address always
matches the nexthop device.
- Introduce SO_PASSRIGHTS for AF_UNIX, to allow disabling SCM_RIGHTS,
and thus preventing DoS caused by passing around problematic FDs.
- Retire DCCP socket. DCCP only receives updates for bugs, and major
distros disable it by default. Its removal allows for better
organisation of TCP fields to reduce the number of cache lines hit
in the fast path.
- Extend TCP drop-reason support to cover PAWS checks.
Driver API
----------
- Reorganize PTP ioctl flag support to require an explicit opt-in for
the drivers, avoiding the problem of drivers not rejecting new
unsupported flags.
- Converted several device drivers to timestamping APIs.
- Introduce per-PHY ethtool dump helpers, improving the support for
dump operations targeting PHYs.
Tests and tooling
-----------------
- Add support for classic netlink in user space C codegen, so that
ynl-c can now read, create and modify links, routes addresses and
qdisc layer configuration.
- Add ynl sub-types for binary attributes, allowing ynl-c to output
known struct instead of raw binary data, clarifying the classic
netlink output.
- Extend MPTCP selftests to improve the code-coverage.
- Add tests for XDP tail adjustment in AF_XDP.
New hardware / drivers
----------------------
- OpenVPN virtual driver: offload OpenVPN data channels processing
to the kernel-space, increasing the data transfer throughput WRT
the user-space implementation.
- Renesas glue driver for the gigabit ethernet RZ/V2H(P) SoC.
- Broadcom asp-v3.0 ethernet driver.
- AMD Renoir ethernet device.
- ReakTek MT9888 2.5G ethernet PHY driver.
- Aeonsemi 10G C45 PHYs driver.
Drivers
-------
- Ethernet high-speed NICs:
- nVidia/Mellanox (mlx5):
- refactor the stearing table handling to reduce significantly
the amount of memory used
- add support for complex matches in H/W flow steering
- improve flow streeing error handling
- convert to netdev instance locking
- Intel (100G, ice, igb, ixgbe, idpf):
- ice: add switchdev support for LLDP traffic over VF
- ixgbe: add firmware manipulation and regions devlink support
- igb: introduce support for frame transmission premption
- igb: adds persistent NAPI configuration
- idpf: introduce RDMA support
- idpf: add initial PTP support
- Meta (fbnic):
- extend hardware stats coverage
- add devlink dev flash support
- Broadcom (bnxt):
- add support for RX-side device memory TCP
- Wangxun (txgbe):
- implement support for udp tunnel offload
- complete PTP and SRIOV support for AML 25G/10G devices
- Ethernet NICs embedded and virtual:
- Google (gve):
- add device memory TCP TX support
- Amazon (ena):
- support persistent per-NAPI config
- Airoha:
- add H/W support for L2 traffic offload
- add per flow stats for flow offloading
- RealTek (rtl8211): add support for WoL magic packet
- Synopsys (stmmac):
- dwmac-socfpga 1000BaseX support
- add Loongson-2K3000 support
- introduce support for hardware-accelerated VLAN stripping
- Broadcom (bcmgenet):
- expose more H/W stats
- Freescale (enetc, dpaa2-eth):
- enetc: add MAC filter, VLAN filter RSS and loopback support
- dpaa2-eth: convert to H/W timestamping APIs
- vxlan: convert FDB table to rhashtable, for better scalabilty
- veth: apply qdisc backpressure on full ring to reduce TX drops
- Ethernet switches:
- Microchip (kzZ88x3): add ETS scheduler support
- Ethernet PHYs:
- RealTek (rtl8211):
- add support for WoL magic packet
- add support for PHY LEDs
- CAN:
- Adds RZ/G3E CANFD support to the rcar_canfd driver.
- Preparatory work for CAN-XL support.
- Add self-tests framework with support for CAN physical interfaces.
- WiFi:
- mac80211:
- scan improvements with multi-link operation (MLO)
- Qualcomm (ath12k):
- enable AHB support for IPQ5332
- add monitor interface support to QCN9274
- add multi-link operation support to WCN7850
- add 802.11d scan offload support to WCN7850
- monitor mode for WCN7850, better 6 GHz regulatory
- Qualcomm (ath11k):
- restore hibernation support
- MediaTek (mt76):
- WiFi-7 improvements
- implement support for mt7990
- Intel (iwlwifi):
- enhanced multi-link single-radio (EMLSR) support on 5 GHz links
- rework device configuration
- RealTek (rtw88):
- improve throughput for RTL8814AU
- RealTek (rtw89):
- add multi-link operation support
- STA/P2P concurrency improvements
- support different SAR configs by antenna
- Bluetooth:
- introduce HCI Driver protocol
- btintel_pcie: do not generate coredump for diagnostic events
- btusb: add HCI Drv commands for configuring altsetting
- btusb: add RTL8851BE device 0x0bda:0xb850
- btusb: add new VID/PID 13d3/3584 for MT7922
- btusb: add new VID/PID 13d3/3630 and 13d3/3613 for MT7925
- btnxpuart: implement host-wakeup feature
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-next-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Paolo Abeni:
"Core:
- Implement the Device Memory TCP transmit path, allowing zero-copy
data transmission on top of TCP from e.g. GPU memory to the wire.
- Move all the IPv6 routing tables management outside the RTNL scope,
under its own lock and RCU. The route control path is now 3x times
faster.
- Convert queue related netlink ops to instance lock, reducing again
the scope of the RTNL lock. This improves the control plane
scalability.
- Refactor the software crc32c implementation, removing unneeded
abstraction layers and improving significantly the related
micro-benchmarks.
- Optimize the GRO engine for UDP-tunneled traffic, for a 10%
performance improvement in related stream tests.
- Cover more per-CPU storage with local nested BH locking; this is a
prep work to remove the current per-CPU lock in local_bh_disable()
on PREMPT_RT.
- Introduce and use nlmsg_payload helper, combining buffer bounds
verification with accessing payload carried by netlink messages.
Netfilter:
- Rewrite the procfs conntrack table implementation, improving
considerably the dump performance. A lot of user-space tools still
use this interface.
- Implement support for wildcard netdevice in netdev basechain and
flowtables.
- Integrate conntrack information into nft trace infrastructure.
- Export set count and backend name to userspace, for better
introspection.
BPF:
- BPF qdisc support: BPF-qdisc can be implemented with BPF struct_ops
programs and can be controlled in similar way to traditional qdiscs
using the "tc qdisc" command.
- Refactor the UDP socket iterator, addressing long standing issues
WRT duplicate hits or missed sockets.
Protocols:
- Improve TCP receive buffer auto-tuning and increase the default
upper bound for the receive buffer; overall this improves the
single flow maximum thoughput on 200Gbs link by over 60%.
- Add AFS GSSAPI security class to AF_RXRPC; it provides transport
security for connections to the AFS fileserver and VL server.
- Improve TCP multipath routing, so that the sources address always
matches the nexthop device.
- Introduce SO_PASSRIGHTS for AF_UNIX, to allow disabling SCM_RIGHTS,
and thus preventing DoS caused by passing around problematic FDs.
- Retire DCCP socket. DCCP only receives updates for bugs, and major
distros disable it by default. Its removal allows for better
organisation of TCP fields to reduce the number of cache lines hit
in the fast path.
- Extend TCP drop-reason support to cover PAWS checks.
Driver API:
- Reorganize PTP ioctl flag support to require an explicit opt-in for
the drivers, avoiding the problem of drivers not rejecting new
unsupported flags.
- Converted several device drivers to timestamping APIs.
- Introduce per-PHY ethtool dump helpers, improving the support for
dump operations targeting PHYs.
Tests and tooling:
- Add support for classic netlink in user space C codegen, so that
ynl-c can now read, create and modify links, routes addresses and
qdisc layer configuration.
- Add ynl sub-types for binary attributes, allowing ynl-c to output
known struct instead of raw binary data, clarifying the classic
netlink output.
- Extend MPTCP selftests to improve the code-coverage.
- Add tests for XDP tail adjustment in AF_XDP.
New hardware / drivers:
- OpenVPN virtual driver: offload OpenVPN data channels processing to
the kernel-space, increasing the data transfer throughput WRT the
user-space implementation.
- Renesas glue driver for the gigabit ethernet RZ/V2H(P) SoC.
- Broadcom asp-v3.0 ethernet driver.
- AMD Renoir ethernet device.
- ReakTek MT9888 2.5G ethernet PHY driver.
- Aeonsemi 10G C45 PHYs driver.
Drivers:
- Ethernet high-speed NICs:
- nVidia/Mellanox (mlx5):
- refactor the steering table handling to significantly
reduce the amount of memory used
- add support for complex matches in H/W flow steering
- improve flow streeing error handling
- convert to netdev instance locking
- Intel (100G, ice, igb, ixgbe, idpf):
- ice: add switchdev support for LLDP traffic over VF
- ixgbe: add firmware manipulation and regions devlink support
- igb: introduce support for frame transmission premption
- igb: adds persistent NAPI configuration
- idpf: introduce RDMA support
- idpf: add initial PTP support
- Meta (fbnic):
- extend hardware stats coverage
- add devlink dev flash support
- Broadcom (bnxt):
- add support for RX-side device memory TCP
- Wangxun (txgbe):
- implement support for udp tunnel offload
- complete PTP and SRIOV support for AML 25G/10G devices
- Ethernet NICs embedded and virtual:
- Google (gve):
- add device memory TCP TX support
- Amazon (ena):
- support persistent per-NAPI config
- Airoha:
- add H/W support for L2 traffic offload
- add per flow stats for flow offloading
- RealTek (rtl8211): add support for WoL magic packet
- Synopsys (stmmac):
- dwmac-socfpga 1000BaseX support
- add Loongson-2K3000 support
- introduce support for hardware-accelerated VLAN stripping
- Broadcom (bcmgenet):
- expose more H/W stats
- Freescale (enetc, dpaa2-eth):
- enetc: add MAC filter, VLAN filter RSS and loopback support
- dpaa2-eth: convert to H/W timestamping APIs
- vxlan: convert FDB table to rhashtable, for better scalabilty
- veth: apply qdisc backpressure on full ring to reduce TX drops
- Ethernet switches:
- Microchip (kzZ88x3): add ETS scheduler support
- Ethernet PHYs:
- RealTek (rtl8211):
- add support for WoL magic packet
- add support for PHY LEDs
- CAN:
- Adds RZ/G3E CANFD support to the rcar_canfd driver.
- Preparatory work for CAN-XL support.
- Add self-tests framework with support for CAN physical interfaces.
- WiFi:
- mac80211:
- scan improvements with multi-link operation (MLO)
- Qualcomm (ath12k):
- enable AHB support for IPQ5332
- add monitor interface support to QCN9274
- add multi-link operation support to WCN7850
- add 802.11d scan offload support to WCN7850
- monitor mode for WCN7850, better 6 GHz regulatory
- Qualcomm (ath11k):
- restore hibernation support
- MediaTek (mt76):
- WiFi-7 improvements
- implement support for mt7990
- Intel (iwlwifi):
- enhanced multi-link single-radio (EMLSR) support on 5 GHz links
- rework device configuration
- RealTek (rtw88):
- improve throughput for RTL8814AU
- RealTek (rtw89):
- add multi-link operation support
- STA/P2P concurrency improvements
- support different SAR configs by antenna
- Bluetooth:
- introduce HCI Driver protocol
- btintel_pcie: do not generate coredump for diagnostic events
- btusb: add HCI Drv commands for configuring altsetting
- btusb: add RTL8851BE device 0x0bda:0xb850
- btusb: add new VID/PID 13d3/3584 for MT7922
- btusb: add new VID/PID 13d3/3630 and 13d3/3613 for MT7925
- btnxpuart: implement host-wakeup feature"
* tag 'net-next-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1611 commits)
selftests/bpf: Fix bpf selftest build warning
selftests: netfilter: Fix skip of wildcard interface test
net: phy: mscc: Stop clearing the the UDPv4 checksum for L2 frames
net: openvswitch: Fix the dead loop of MPLS parse
calipso: Don't call calipso functions for AF_INET sk.
selftests/tc-testing: Add a test for HFSC eltree double add with reentrant enqueue behaviour on netem
net_sched: hfsc: Address reentrant enqueue adding class to eltree twice
octeontx2-pf: QOS: Refactor TC_HTB_LEAF_DEL_LAST callback
octeontx2-pf: QOS: Perform cache sync on send queue teardown
net: mana: Add support for Multi Vports on Bare metal
net: devmem: ncdevmem: remove unused variable
net: devmem: ksft: upgrade rx test to send 1K data
net: devmem: ksft: add 5 tuple FS support
net: devmem: ksft: add exit_wait to make rx test pass
net: devmem: ksft: add ipv4 support
net: devmem: preserve sockc_err
page_pool: fix ugly page_pool formatting
net: devmem: move list_add to net_devmem_bind_dmabuf.
selftests: netfilter: nft_queue.sh: include file transfer duration in log message
net: phy: mscc: Fix memory leak when using one step timestamping
...
|
||
|
Linus Torvalds
|
2c26b68cd5 |
NFSD 6.16 Release Notes
The marquee feature for this release is that the limit on the maximum rsize and wsize has been raised to 4MB. The default remains at 1MB, but risk-seeking administrators now have the ability to try larger I/O sizes with NFS clients that support them. Eventually the default setting will be increased when we have confidence that this change will not have negative impact. With v6.16, NFSD now has its own debugfs file system where we can add experimental features and make them available outside of our development community without impacting production deployments. The first experimental setting added is one that makes all NFS READ operations use vfs_iter_read() instead of the NFSD splice actor. The plan is to eventually retire the splice actor, as that will enable a number of new capabilities such as the use of struct bio_vec from the top to the bottom of the NFSD stack. Jeff Layton contributed a number of observability improvements. The use of dprintk() in a number of high-traffic code paths has been replaced with static trace points. This release sees the continuation of efforts to harden the NFSv4.2 COPY operation. Soon, the restriction on async COPY operations can be lifted. Many thanks to the contributors, reviewers, testers, and bug reporters who participated during the v6.16 development cycle. -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEKLLlsBKG3yQ88j7+M2qzM29mf5cFAmg1yGUACgkQM2qzM29m f5frMA//TJTbSWiM7qBX1GhVMNr1lxQcjU4BPKo0qZfEtwV06F2BB9mWgDU+BIQh AcGfMZUmNWAnhOTOYvwqyW6dnX+1yt8sBsCZ/1ctY30A4JH4AgG5sdZS7BUrlEEr bGDMUCaPnvQ3maeDjMlefe7Xv/rUhj9TVhXmDkt4vf/jCde2JODTB/z8n7WeAxYJ eOvmr/n5z6VI5Q67M7b5/xqofBEaEoq9P5UEgn61ThfeR0bMlrklm/avDCbbNIH8 6n7Z3tjzllK1CAjEmwHalq4LRbMX5FHWzNkyJw+wtviXS18J5vCAvRe+JDoykusu L2bgXT8bBUqy46eO4WKEOJtEqVQhIsRFx/8ku1iTLrpDWlwrR4mHVyObEDkkdlMX EyBQ4svg2OxCXSyy5O8oggzU0TWVJStIjbIEHbJYusWLU7HxxFveBwqwzYHXLtip WKm6N2ANqQi1du+Pc6xmgXo9svA5Vk+DQjljm1Y5up9dhi2K9cvCIHjwFsZ+E0VL XqXJ2YgIQb3oXK7FttzLOiDrpX1OX82sTIbgdcPcfT7lP+ej7uiHMBPmdPwgaZIU EbIp0ThoTkh8/VRMDcWIt+B6SEhmb5vY3Zgz9Lcf2J0PM1fuYJ67L7xGTviFX7Ci DpohiCgceb6PHYeIuarayF86tPJGF8Vb7XvQZej2Ybv8QdxLFg8= =FbeG -----END PGP SIGNATURE----- Merge tag 'nfsd-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux Pull nfsd updates from Chuck Lever: "The marquee feature for this release is that the limit on the maximum rsize and wsize has been raised to 4MB. The default remains at 1MB, but risk-seeking administrators now have the ability to try larger I/O sizes with NFS clients that support them. Eventually the default setting will be increased when we have confidence that this change will not have negative impact. With v6.16, NFSD now has its own debugfs file system where we can add experimental features and make them available outside of our development community without impacting production deployments. The first experimental setting added is one that makes all NFS READ operations use vfs_iter_read() instead of the NFSD splice actor. The plan is to eventually retire the splice actor, as that will enable a number of new capabilities such as the use of struct bio_vec from the top to the bottom of the NFSD stack. Jeff Layton contributed a number of observability improvements. The use of dprintk() in a number of high-traffic code paths has been replaced with static trace points. This release sees the continuation of efforts to harden the NFSv4.2 COPY operation. Soon, the restriction on async COPY operations can be lifted. Many thanks to the contributors, reviewers, testers, and bug reporters who participated during the v6.16 development cycle" * tag 'nfsd-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (60 commits) xdrgen: Fix code generated for counted arrays SUNRPC: Bump the maximum payload size for the server NFSD: Add a "default" block size NFSD: Remove NFSSVC_MAXBLKSIZE_V2 macro NFSD: Remove NFSD_BUFSIZE sunrpc: Remove the RPCSVC_MAXPAGES macro svcrdma: Adjust the number of entries in svc_rdma_send_ctxt::sc_pages svcrdma: Adjust the number of entries in svc_rdma_recv_ctxt::rc_pages sunrpc: Adjust size of socket's receive page array dynamically SUNRPC: Remove svc_rqst :: rq_vec SUNRPC: Remove svc_fill_write_vector() NFSD: Use rqstp->rq_bvec in nfsd_iter_write() SUNRPC: Export xdr_buf_to_bvec() NFSD: De-duplicate the svc_fill_write_vector() call sites NFSD: Use rqstp->rq_bvec in nfsd_iter_read() sunrpc: Replace the rq_bvec array with dynamically-allocated memory sunrpc: Replace the rq_pages array with dynamically-allocated memory sunrpc: Remove backchannel check in svc_init_buffer() sunrpc: Add a helper to derive maxpages from sv_max_mesg svcrdma: Reduce the number of rdma_rw contexts per-QP ... |
||
|
Linus Torvalds
|
3b66e6b3c0 |
cgroup: Changes for v6.16
- cgroup rstat shared the tracking tree across all controlers with the rationale being that a cgroup which is using one resource is likely to be using other resources at the same time (ie. if something is allocating memory, it's probably consuming CPU cycles). However, this turned out to not scale very well especially with memcg using rstat for internal operations which made memcg stat read and flush patterns substantially different from other controllers. JP Kobryn split the rstat tree per controller. - cgroup BPF support was hooking into cgroup init/exit paths directly. Convert them to use a notifier chain instead so that other usages can be added easily. The two of the patches which implement this are mislabeled as belonging to sched_ext instead of cgroup. Sorry. - Relatively minor cpuset updates. - Documentation updates. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCaDYUmA4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGRhbAP90v8QwUkWEKGQSam8JY3by7PvrW6pV5ot+BGuM 4xu3BAEAjsJ9FdiwYLwKYqG7y59xhhBFOo6GpcP52kPp3znl+QQ= =6MIT -----END PGP SIGNATURE----- Merge tag 'cgroup-for-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull cgroup updates from Tejun Heo: - cgroup rstat shared the tracking tree across all controllers with the rationale being that a cgroup which is using one resource is likely to be using other resources at the same time (ie. if something is allocating memory, it's probably consuming CPU cycles). However, this turned out to not scale very well especially with memcg using rstat for internal operations which made memcg stat read and flush patterns substantially different from other controllers. JP Kobryn split the rstat tree per controller. - cgroup BPF support was hooking into cgroup init/exit paths directly. Convert them to use a notifier chain instead so that other usages can be added easily. The two of the patches which implement this are mislabeled as belonging to sched_ext instead of cgroup. Sorry. - Relatively minor cpuset updates - Documentation updates * tag 'cgroup-for-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (23 commits) sched_ext: Convert cgroup BPF support to use cgroup_lifetime_notifier sched_ext: Introduce cgroup_lifetime_notifier cgroup: Minor reorganization of cgroup_create() cgroup, docs: cpu controller's interaction with various scheduling policies cgroup, docs: convert space indentation to tab indentation cgroup: avoid per-cpu allocation of size zero rstat cpu locks cgroup, docs: be specific about bandwidth control of rt processes cgroup: document the rstat per-cpu initialization cgroup: helper for checking rstat participation of css cgroup: use subsystem-specific rstat locks to avoid contention cgroup: use separate rstat trees for each subsystem cgroup: compare css to cgroup::self in helper for distingushing css cgroup: warn on rstat usage by early init subsystems cgroup/cpuset: drop useless cpumask_empty() in compute_effective_exclusive_cpumask() cgroup/rstat: Improve cgroup_rstat_push_children() documentation cgroup: fix goto ordering in cgroup_init() cgroup: fix pointer check in css_rstat_init() cgroup/cpuset: Add warnings to catch inconsistency in exclusive CPUs cgroup/cpuset: Fix obsolete comment in cpuset_css_offline() cgroup/cpuset: Always use cpu_active_mask ... |
||
|
Linus Torvalds
|
0aee061726 |
Move the x86 page fault tracepoints to generic code, because
other architectures would like to make use of them as well. Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmgy+RARHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1jTHA//eIBOFKJdxmhpJ95kzA0tRXue+FUSTAX+ j9rMZOJpR9hnVkr0pBxH8bU42lji4+6b2vujMHaT59n5i2kH5tPFHW1xfEnpbVNw thSRsFxrUKsNnKPBju0vK9WQs9e1cn2ZvVBbh2SHrATKQrcTCmJroEERZDX0cdnn VrPeGoc7UUAjxE23c3vnZOzAJDapIc9zPAdfVGRa7xHqlq5grryG+SfHFzT/fd08 5Qwu8TN37jo1HU5v2I4RYIh4Alc1lXtWTfJAc0bks0Cpryu+Et9+N2XANu/VatVw cve/Ubwdou9m0QxQtUTULttEbMSBB8Ylc7DJ1PdGkhULxNM8cCb+Yx9C8Gk0+8Rf SP8/ZSVK8EE+3ETP+J8r8VXoXrNgTPSjMeI1s4rZD/b9QpRKE4g/Khu+R9UA8JBV yuYdy2xkeRbfFVzoGDSVnZItk18MuAoq4hSNqgAxl9/S33HWG84KHQAnjzixCqb4 9Ai7n3/FBEe1edLJXKoqWK96mTa5P/vpGjMnL8wQ0rAnSYI+V2OSwPpZ9HHviw3g qYYMqsmiU6ChbfcUnuub/YwdJFdRieVSOa7wh3H6mfKAuakpS0At8fIyD5mBtFtA /qeSD9INII/guT1gdTgqGsirXeObbmNpC+HJjz8hRvsoP6hdoT2L/UZsUH89LcDl qd8MKeV1Kew= =xi0h -----END PGP SIGNATURE----- Merge tag 'x86-debug-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 debug updates from Ingo Molnar: "Move the x86 page fault tracepoints to generic code, because other architectures would like to make use of them as well" * tag 'x86-debug-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/tracing, x86/mm: Move page fault tracepoints to generic x86/tracing, x86/mm: Remove redundant trace_pagefault_key |
||
|
Linus Torvalds
|
eaed94d1f6 |
Scheduler updates for v6.16:
Core & fair scheduler changes:
- Tweak wait_task_inactive() to force dequeue sched_delayed tasks
(John Stultz)
- Adhere to place_entity() constraints (Peter Zijlstra)
- Allow decaying util_est when util_avg > CPU capacity (Pierre Gondois)
- Fix up wake_up_sync() vs DELAYED_DEQUEUE (Xuewen Yan)
Energy management:
- Introduce sched_update_asym_prefer_cpu() (K Prateek Nayak)
- cpufreq/amd-pstate: Update asym_prefer_cpu when core rankings change
(K Prateek Nayak)
- Align uclamp and util_est and call before freq update (Xuewen Yan)
CPU isolation:
- Make use of more than one housekeeping CPU (Phil Auld)
RT scheduler:
- Fix race in push_rt_task() (Harshit Agarwal)
- Add kernel cmdline option for rt_group_sched (Michal Koutný)
Scheduler topology support:
- Improve topology_span_sane speed (Steve Wahl)
Scheduler debugging:
- Move and extend the sched_process_exit() tracepoint (Andrii Nakryiko)
- Add RT_GROUP WARN checks for non-root task_groups (Michal Koutný)
- Fix trace_sched_switch(.prev_state) (Peter Zijlstra)
- Untangle cond_resched() and live-patching (Peter Zijlstra)
Fixes and cleanups:
- Misc fixes and cleanups (K Prateek Nayak, Michal Koutný,
Peter Zijlstra, Xuewen Yan)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
"Core & fair scheduler changes:
- Tweak wait_task_inactive() to force dequeue sched_delayed tasks
(John Stultz)
- Adhere to place_entity() constraints (Peter Zijlstra)
- Allow decaying util_est when util_avg > CPU capacity (Pierre
Gondois)
- Fix up wake_up_sync() vs DELAYED_DEQUEUE (Xuewen Yan)
Energy management:
- Introduce sched_update_asym_prefer_cpu() (K Prateek Nayak)
- cpufreq/amd-pstate: Update asym_prefer_cpu when core rankings
change (K Prateek Nayak)
- Align uclamp and util_est and call before freq update (Xuewen Yan)
CPU isolation:
- Make use of more than one housekeeping CPU (Phil Auld)
RT scheduler:
- Fix race in push_rt_task() (Harshit Agarwal)
- Add kernel cmdline option for rt_group_sched (Michal Koutný)
Scheduler topology support:
- Improve topology_span_sane speed (Steve Wahl)
Scheduler debugging:
- Move and extend the sched_process_exit() tracepoint (Andrii
Nakryiko)
- Add RT_GROUP WARN checks for non-root task_groups (Michal Koutný)
- Fix trace_sched_switch(.prev_state) (Peter Zijlstra)
- Untangle cond_resched() and live-patching (Peter Zijlstra)
Fixes and cleanups:
- Misc fixes and cleanups (K Prateek Nayak, Michal Koutný, Peter
Zijlstra, Xuewen Yan)"
* tag 'sched-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (26 commits)
sched/uclamp: Align uclamp and util_est and call before freq update
sched/util_est: Simplify condition for util_est_{en,de}queue()
sched/fair: Fixup wake_up_sync() vs DELAYED_DEQUEUE
sched,livepatch: Untangle cond_resched() and live-patching
sched/core: Tweak wait_task_inactive() to force dequeue sched_delayed tasks
sched/fair: Adhere to place_entity() constraints
sched/debug: Print the local group's asym_prefer_cpu
cpufreq/amd-pstate: Update asym_prefer_cpu when core rankings change
sched/topology: Introduce sched_update_asym_prefer_cpu()
sched/fair: Use READ_ONCE() to read sg->asym_prefer_cpu
sched/isolation: Make use of more than one housekeeping cpu
sched/rt: Fix race in push_rt_task
sched: Add annotations to RT_GROUP_SCHED fields
sched: Add RT_GROUP WARN checks for non-root task_groups
sched: Do not construct nor expose RT_GROUP_SCHED structures if disabled
sched: Bypass bandwitdh checks with runtime disabled RT_GROUP_SCHED
sched: Skip non-root task_groups with disabled RT_GROUP_SCHED
sched: Add commadline option for RT_GROUP_SCHED toggling
sched: Always initialize rt_rq's task_group
sched: Remove unneeed macro wrap
...
|
||
|
Linus Torvalds
|
79b98edf91 |
Changes since last update:
- Add a `fsoffset` mount option to specify the filesystem offset;
- Support Intel QAT accelerators to boost up the DEFLATE algorithm;
- Initialize per-CPU workers and CPU hotplug hooks lazily to avoid
unnecessary overhead when EROFS is not mounted;
- Fix file handle encoding for 64-bit NIDs;
- Minor cleanups.
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Merge tag 'erofs-for-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs
Pull erofs updates from Gao Xiang:
"In this cycle, Intel QAT hardware accelerators are supported to
improve DEFLATE decompression performance. I've tested it with the
enwik9 dataset of 1 MiB pclusters on our Intel Sapphire Rapids
bare-metal server and a PL0 ESSD, and the sequential read performance
even surpasses LZ4 software decompression on this setup.
In addition, a `fsoffset` mount option is introduced for file-backed
mounts to specify the filesystem offset in order to adapt customized
container formats.
And other improvements and minor cleanups. Summary:
- Add a `fsoffset` mount option to specify the filesystem offset
- Support Intel QAT accelerators to boost up the DEFLATE algorithm
- Initialize per-CPU workers and CPU hotplug hooks lazily to avoid
unnecessary overhead when EROFS is not mounted
- Fix file handle encoding for 64-bit NIDs
- Minor cleanups"
* tag 'erofs-for-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
erofs: support DEFLATE decompression by using Intel QAT
erofs: clean up erofs_{init,exit}_sysfs()
erofs: add 'fsoffset' mount option to specify filesystem offset
erofs: lazily initialize per-CPU workers and CPU hotplug hooks
erofs: refine readahead tracepoint
erofs: avoid using multiple devices with different type
erofs: fix file handle encoding for 64-bit NIDs
|
||
|
Linus Torvalds
|
5e82ed5ca4 |
for-6.16-tag
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Merge tag 'for-6.16-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"Apart from numerous cleanups, there are some performance improvements
and one minor mount option update. There's one more radix-tree
conversion (one remaining), and continued work towards enabling large
folios (almost finished).
Performance:
- extent buffer conversion to xarray gains throughput and runtime
improvements on metadata heavy operations doing writeback (sample
test shows +50% throughput, -33% runtime)
- extent io tree cleanups lead to performance improvements by
avoiding unnecessary searches or repeated searches
- more efficient extent unpinning when committing transaction
(estimated run time improvement 3-5%)
User visible changes:
- remove standalone mount option 'nologreplay', deprecated in 5.9,
replacement is 'rescue=nologreplay'
- in scrub, update reporting, add back device stats message after
detected errors (accidentally removed during recent refactoring)
Core:
- convert extent buffer radix tree to xarray
- in subpage mode, move block perfect compression out of experimental
build
- in zoned mode, introduce sub block groups to allow managing special
block groups, like the one for relocation or tree-log, to handle
some corner cases of ENOSPC
- in scrub, simplify bitmaps for block tracking status
- continued preparations for large folios:
- remove assertions for folio order 0
- add support where missing: compression, buffered write, defrag,
hole punching, subpage, send
- fix fsync of files with no hard links not persisting deletion
- reject tree blocks which are not nodesize aligned, a precaution
from 4.9 times
- move transaction abort calls closer to the error sites
- remove usage of some struct bio_vec internals
- simplifications in extent map
- extent IO cleanups and optimizations
- error handling improvements
- enhanced ASSERT() macro with optional format strings
- cleanups:
- remove unused code
- naming unifications, dropped __, added prefix
- merge similar functions
- use common helpers for various data structures"
* tag 'for-6.16-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (198 commits)
btrfs: move misplaced comment of btrfs_path::keep_locks
btrfs: remove standalone "nologreplay" mount option
btrfs: use a single variable to track return value at btrfs_page_mkwrite()
btrfs: don't return VM_FAULT_SIGBUS on failure to set delalloc for mmap write
btrfs: simplify early error checking in btrfs_page_mkwrite()
btrfs: pass true to btrfs_delalloc_release_space() at btrfs_page_mkwrite()
btrfs: fix wrong start offset for delalloc space release during mmap write
btrfs: fix harmless race getting delayed ref head count when running delayed refs
btrfs: log error codes during failures when writing super blocks
btrfs: simplify error return logic when getting folio at prepare_one_folio()
btrfs: return real error from __filemap_get_folio() calls
btrfs: remove superfluous return value check at btrfs_dio_iomap_begin()
btrfs: fix invalid data space release when truncating block in NOCOW mode
btrfs: update Kconfig option descriptions
btrfs: update list of features built under experimental config
btrfs: send: remove btrfs_debug() calls
btrfs: use boolean for delalloc argument to btrfs_free_reserved_extent()
btrfs: use boolean for delalloc argument to btrfs_free_reserved_bytes()
btrfs: fold error checks when allocating ordered extent and update comments
btrfs: check we grabbed inode reference when allocating an ordered extent
...
|
||
|
Linus Torvalds
|
49fffac983 |
for-6.16/io_uring-20250523
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||
|
Linus Torvalds
|
6f59de9bc0 |
for-6.16/block-20250523
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Merge tag 'for-6.16/block-20250523' of git://git.kernel.dk/linux
Pull block updates from Jens Axboe:
- ublk updates:
- Add support for updating the size of a ublk instance
- Zero-copy improvements
- Auto-registering of buffers for zero-copy
- Series simplifying and improving GET_DATA and request lookup
- Series adding quiesce support
- Lots of selftests additions
- Various cleanups
- NVMe updates via Christoph:
- add per-node DMA pools and use them for PRP/SGL allocations
(Caleb Sander Mateos, Keith Busch)
- nvme-fcloop refcounting fixes (Daniel Wagner)
- support delayed removal of the multipath node and optionally
support the multipath node for private namespaces (Nilay Shroff)
- support shared CQs in the PCI endpoint target code (Wilfred
Mallawa)
- support admin-queue only authentication (Hannes Reinecke)
- use the crc32c library instead of the crypto API (Eric Biggers)
- misc cleanups (Christoph Hellwig, Marcelo Moreira, Hannes
Reinecke, Leon Romanovsky, Gustavo A. R. Silva)
- MD updates via Yu:
- Fix that normal IO can be starved by sync IO, found by mkfs on
newly created large raid5, with some clean up patches for bdev
inflight counters
- Clean up brd, getting rid of atomic kmaps and bvec poking
- Add loop driver specifically for zoned IO testing
- Eliminate blk-rq-qos calls with a static key, if not enabled
- Improve hctx locking for when a plug has IO for multiple queues
pending
- Remove block layer bouncing support, which in turn means we can
remove the per-node bounce stat as well
- Improve blk-throttle support
- Improve delay support for blk-throttle
- Improve brd discard support
- Unify IO scheduler switching. This should also fix a bunch of lockdep
warnings we've been seeing, after enabling lockdep support for queue
freezing/unfreezeing
- Add support for block write streams via FDP (flexible data placement)
on NVMe
- Add a bunch of block helpers, facilitating the removal of a bunch of
duplicated boilerplate code
- Remove obsolete BLK_MQ pci and virtio Kconfig options
- Add atomic/untorn write support to blktrace
- Various little cleanups and fixes
* tag 'for-6.16/block-20250523' of git://git.kernel.dk/linux: (186 commits)
selftests: ublk: add test for UBLK_F_QUIESCE
ublk: add feature UBLK_F_QUIESCE
selftests: ublk: add test case for UBLK_U_CMD_UPDATE_SIZE
traceevent/block: Add REQ_ATOMIC flag to block trace events
ublk: run auto buf unregisgering in same io_ring_ctx with registering
io_uring: add helper io_uring_cmd_ctx_handle()
ublk: remove io argument from ublk_auto_buf_reg_fallback()
ublk: handle ublk_set_auto_buf_reg() failure correctly in ublk_fetch()
selftests: ublk: add test for covering UBLK_AUTO_BUF_REG_FALLBACK
selftests: ublk: support UBLK_F_AUTO_BUF_REG
ublk: support UBLK_AUTO_BUF_REG_FALLBACK
ublk: register buffer to local io_uring with provided buf index via UBLK_F_AUTO_BUF_REG
ublk: prepare for supporting to register request buffer automatically
ublk: convert to refcount_t
selftests: ublk: make IO & device removal test more stressful
nvme: rename nvme_mpath_shutdown_disk to nvme_mpath_remove_disk
nvme: introduce multipath_always_on module param
nvme-multipath: introduce delayed removal of the multipath head node
nvme-pci: derive and better document max segments limits
nvme-pci: use struct_size for allocation struct nvme_dev
...
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Ritesh Harjani (IBM)
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927244f6ef |
traceevent/block: Add REQ_ATOMIC flag to block trace events
Filesystems like XFS can implement atomic write I/O using either REQ_ATOMIC flag set in the bio or via CoW operation. It will be useful if we have a flag in trace events to distinguish between the two. This patch adds char 'U' (Untorn writes) to rwbs field of the trace events if REQ_ATOMIC flag is set in the bio. <W/ REQ_ATOMIC> ================= xfs_io-4238 [009] ..... 4148.126843: block_rq_issue: 259,0 WFSU 16384 () 768 + 32 none,0,0 [xfs_io] <idle>-0 [009] d.h1. 4148.129864: block_rq_complete: 259,0 WFSU () 768 + 32 none,0,0 [0] <W/O REQ_ATOMIC> =============== xfs_io-4237 [010] ..... 4143.325616: block_rq_issue: 259,0 WS 16384 () 768 + 32 none,0,0 [xfs_io] <idle>-0 [010] d.H1. 4143.329138: block_rq_complete: 259,0 WS () 768 + 32 none,0,0 [0] Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com> Reviewed-by: Ojaswin Mujoo <ojaswin@linux.ibm.com> Link: https://lore.kernel.org/r/44317cb2ec4588f6a2c1501a96684e6a1196e8ba.1747921498.git.ritesh.list@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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David Howells
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db26d62d79
|
netfs: Fix undifferentiation of DIO reads from unbuffered reads
On cifs, "DIO reads" (specified by O_DIRECT) need to be differentiated from
"unbuffered reads" (specified by cache=none in the mount parameters). The
difference is flagged in the protocol and the server may behave
differently: Windows Server will, for example, mandate that DIO reads are
block aligned.
Fix this by adding a NETFS_UNBUFFERED_READ to differentiate this from
NETFS_DIO_READ, parallelling the write differentiation that already exists.
cifs will then do the right thing.
Fixes:
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||
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David Hildenbrand
|
cba4dbeb7b |
mm: remove VM_PAT
It's unused, so let's remove it. Link: https://lkml.kernel.org/r/20250512123424.637989-7-david@redhat.com Signed-off-by: David Hildenbrand <david@redhat.com> Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Acked-by: Ingo Molnar <mingo@kernel.org> [x86 bits] Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Betkov <bp@alien8.de> Cc: Dave Airlie <airlied@gmail.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Jann Horn <jannh@google.com> Cc: Jonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Peter Xu <peterx@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleinxer <tglx@linutronix.de> Cc: Tvrtko Ursulin <tursulin@ursulin.net> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
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Caleb Sander Mateos
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28be240c76 |
trace/io_uring: fix io_uring_local_work_run ctx documentation
The comment for the tracepoint io_uring_local_work_run refers to a field "tctx" and a type "io_uring_ctx", neither of which exist. "tctx" looks to mean "ctx" and "io_uring_ctx" should be "io_ring_ctx". Signed-off-by: Caleb Sander Mateos <csander@purestorage.com> Link: https://lore.kernel.org/r/20250522150451.2385652-1-csander@purestorage.com Signed-off-by: Jens Axboe <axboe@kernel.dk> |
||
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Christian Brauner
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5fddfbc0cb
|
Merge patch series "netfs: Miscellaneous fixes"
David Howells <dhowells@redhat.com> says:
Here are some miscellaneous fixes and changes for netfslib, if you could
pull them:
(1) Fix an oops in write-retry due to mis-resetting the I/O iterator.
(2) Fix the recording of transferred bytes for short DIO reads.
(3) Fix a request's work item to not require a reference, thereby avoiding
the need to get rid of it in BH/IRQ context.
(4) Fix waiting and waking to be consistent about the waitqueue used.
* patches from https://lore.kernel.org/20250519090707.2848510-1-dhowells@redhat.com:
netfs: Fix wait/wake to be consistent about the waitqueue used
netfs: Fix the request's work item to not require a ref
netfs: Fix setting of transferred bytes with short DIO reads
netfs: Fix oops in write-retry from mis-resetting the subreq iterator
Link: https://lore.kernel.org/20250519090707.2848510-1-dhowells@redhat.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
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||
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David Howells
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20d72b00ca
|
netfs: Fix the request's work item to not require a ref
When the netfs_io_request struct's work item is queued, it must be supplied
with a ref to the work item struct to prevent it being deallocated whilst
on the queue or whilst it is being processed. This is tricky to manage as
we have to get a ref before we try and queue it and then we may find it's
already queued and is thus already holding a ref - in which case we have to
try and get rid of the ref again.
The problem comes if we're in BH or IRQ context and need to drop the ref:
if netfs_put_request() reduces the count to 0, we have to do the cleanup -
but the cleanup may need to wait.
Fix this by adding a new work item to the request, ->cleanup_work, and
dispatching that when the refcount hits zero. That can then synchronously
cancel any outstanding work on the main work item before doing the cleanup.
Adding a new work item also deals with another problem upstream where it's
sometimes changing the work func in the put function and requeuing it -
which has occasionally in the past caused the cleanup to happen
incorrectly.
As a bonus, this allows us to get rid of the 'was_async' parameter from a
bunch of functions. This indicated whether the put function might not be
permitted to sleep.
Fixes:
|
||
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Max Kellermann
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9cd78ca04f
|
fs/netfs: remove unused source NETFS_INVALID_WRITE
This enum choice was added by commit |
||
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JP Kobryn
|
748922dcfa |
cgroup: use subsystem-specific rstat locks to avoid contention
It is possible to eliminate contention between subsystems when updating/flushing stats by using subsystem-specific locks. Let the existing rstat locks be dedicated to the cgroup base stats and rename them to reflect that. Add similar locks to the cgroup_subsys struct for use with individual subsystems. Lock initialization is done in the new function ss_rstat_init(ss) which replaces cgroup_rstat_boot(void). If NULL is passed to this function, the global base stat locks will be initialized. Otherwise, the subsystem locks will be initialized. Change the existing lock helper functions to accept a reference to a css. Then within these functions, conditionally select the appropriate locks based on the subsystem affiliation of the given css. Add helper functions for this selection routine to avoid repeated code. Signed-off-by: JP Kobryn <inwardvessel@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org> |
||
|
Nikhil Jha
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08d6ee6d8a |
sunrpc: implement rfc2203 rpcsec_gss seqnum cache
This implements a sequence number cache of the last three (right now hardcoded) sent sequence numbers for a given XID, as suggested by the RFC. From RFC2203 5.3.3.1: "Note that the sequence number algorithm requires that the client increment the sequence number even if it is retrying a request with the same RPC transaction identifier. It is not infrequent for clients to get into a situation where they send two or more attempts and a slow server sends the reply for the first attempt. With RPCSEC_GSS, each request and reply will have a unique sequence number. If the client wishes to improve turn around time on the RPC call, it can cache the RPCSEC_GSS sequence number of each request it sends. Then when it receives a response with a matching RPC transaction identifier, it can compute the checksum of each sequence number in the cache to try to match the checksum in the reply's verifier." Signed-off-by: Nikhil Jha <njha@janestreet.com> Acked-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com> |
||
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Nam Cao
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06aa9378df |
x86/tracing, x86/mm: Move page fault tracepoints to generic
Page fault tracepoints are interesting for other architectures as well. Move them to be generic. Signed-off-by: Nam Cao <namcao@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Gabriele Monaco <gmonaco@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: John Ogness <john.ogness@linutronix.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: linux-trace-kernel@vger.kernel.org Link: https://lore.kernel.org/r/89c2f284adf9b4c933f0e65811c50cef900a5a95.1747046848.git.namcao@linutronix.de |
||
|
Gao Xiang
|
4eb56b0761 |
erofs: refine readahead tracepoint
- trace_erofs_readpages => trace_erofs_readahead; - Rename a redundant statement `nrpages = readahead_count(rac);`; - Move the tracepoint to the beginning of z_erofs_readahead(). Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com> Reviewed-by: Hongbo Li <lihongbo22@huawei.com> Link: https://lore.kernel.org/r/20250514120820.2739288-1-hsiangkao@linux.alibaba.com Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com> |
||
|
Eric Dumazet
|
c1269d3d12 |
tcp: add tcp_rcvbuf_grow() tracepoint
Provide a new tracepoint to better understand
tcp_rcv_space_adjust() (currently broken) behavior.
Call it only when tcp_rcv_space_adjust() has a chance
to make a change.
I chose to leave trace_tcp_rcv_space_adjust() as is,
because commit
|
||
|
Filipe Manana
|
cff6df108b |
btrfs: tracepoints: remove no longer used tracepoints for eb locking
There are several tracepoints for extent buffer locks that are not used
anymore:
* btrfs_tree_read_unlock_blocking
* btrfs_set_lock_blocking_read
* btrfs_set_lock_blocking_write
* btrfs_tree_read_lock_atomic
These stopped being used after we switched extent buffer locks from a
custom implementation to rw semaphores in commit
|
||
|
Filipe Manana
|
81eb6ce8b5 |
btrfs: tracepoints: add btrfs prefix to names where it's missing
Most of our tracepoints have the 'btrfs_' prefix in their names but a few of them are missing, making it inconsistent. So add the prefix to the ones that are missing it, creating consistency, making it clear for users these are btrfs tracepoints and eventually avoid name collisions with other tracepoints defined by other kernel subsystems. Signed-off-by: Filipe Manana <fdmanana@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
||
|
Filipe Manana
|
02c340c278 |
btrfs: rename the functions to get inode and fs_info from an extent io tree
These functions are exported so they should have a 'btrfs_' prefix by convention, to make it clear they are btrfs specific and to avoid collisions with functions from elsewhere in the kernel. So add a 'btrfs_' prefix to their name to make it clear they are from btrfs. Also remove the 'const' suffix from extent_io_tree_to_inode_const() since there's no non-const variant anymore and makes the naming consistent with extent_io_tree_to_fs_info() (no 'const' suffix and returns a const pointer). Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Filipe Manana <fdmanana@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
||
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Filipe Manana
|
41708a4c23 |
btrfs: add btrfs prefix to trace events for extent state alloc and free
These trace events don't have the 'btrfs_' prefix in their name, unlike the other trace events from extent-io-tree.c. So add the prefix to make them consistent and follow coding style conventions too. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Filipe Manana <fdmanana@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
||
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Filipe Manana
|
0f987c099d |
btrfs: tracepoints: use btrfs_root_id() to get the id of a root
Instead of open coding btrfs_root_id() to get the ID of a root, use the helper in the trace points, which also makes the code less verbose. Reviewed-by: Qu Wenruo <wqu@suse.com> Signed-off-by: Filipe Manana <fdmanana@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
||
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Filipe Manana
|
5c41f6010e |
btrfs: remove EXTENT_UPTODATE io tree flag
The EXTENT_UPTODATE io tree flag is now used only to mark ranges in the fs_info->excluded_extents as used by super blocks and not available for extent allocation (to prevent adding those ranges as free space in the in memory space caches). As we can use any flag for that purpose, and we are using EXTENT_DIRTY for the pinned extents io tree for example, remove the EXTENT_UPTODATE flag and use instead EXTENT_DIRTY for the excluded extents io tree. Reviewed-by: Boris Burkov <boris@bur.io> Signed-off-by: Filipe Manana <fdmanana@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
||
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Steven Rostedt
|
155fd6c3e2 |
tracing/sched: Use __string() instead of fixed lengths for task->comm
The sched_switch and sched_waking events hardcoded the length of the comm it recorded because these events were created before the dynamic strings were implemented. Unfortunately, several other events copied this method. As the size of the comm may change in the future, make the string dynamic. The dynamic string requires a 4 byte meta data to hold the size and offset of the string. The amount stored in the ring buffer will then be the strlen(comm) + 5 (for the \n), and aligned to 4 bytes if there's no other strings. This means that a task comm can have up to 10 characters before it requires another 4 bytes in the ring buffer. Most tasks are usually less than that, so this should not be a problem, and it also allows the name to be extended over the TASK_COMM_LEN [1] Note, sched_switch and the sched_waking trace events still hardcode the length, as there is tooling that still requires that. An effort to update the tooling will be made to allow this to change in the future. [1] https://lore.kernel.org/all/20250507110444.963779-1-bhupesh@igalia.com/ Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Bhupesh <bhupesh@igalia.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Juri Lelli <juri.lelli@redhat.com> Link: https://lore.kernel.org/20250507133458.51bafd95@gandalf.local.home Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> |
||
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Steven Rostedt
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ac01fa73f5 |
tracepoint: Have tracepoints created with DECLARE_TRACE() have _tp suffix
Most tracepoints in the kernel are created with TRACE_EVENT(). The TRACE_EVENT() macro (and DECLARE_EVENT_CLASS() and DEFINE_EVENT() where in reality, TRACE_EVENT() is just a helper macro that calls those other two macros), will create not only a tracepoint (the function trace_<event>() used in the kernel), it also exposes the tracepoint to user space along with defining what fields will be saved by that tracepoint. There are a few places that tracepoints are created in the kernel that are not exposed to userspace via tracefs. They can only be accessed from code within the kernel. These tracepoints are created with DEFINE_TRACE() Most of these tracepoints end with "_tp". This is useful as when the developer sees that, they know that the tracepoint is for in-kernel only (meaning it can only be accessed inside the kernel, either directly by the kernel or indirectly via modules and BPF programs) and is not exposed to user space. Instead of making this only a process to add "_tp", enforce it by making the DECLARE_TRACE() append the "_tp" suffix to the tracepoint. This requires adding DECLARE_TRACE_EVENT() macros for the TRACE_EVENT() macro to use that keeps the original name. Link: https://lore.kernel.org/all/20250418083351.20a60e64@gandalf.local.home/ Cc: netdev <netdev@vger.kernel.org> Cc: Jiri Olsa <olsajiri@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: David Ahern <dsahern@kernel.org> Cc: Juri Lelli <juri.lelli@gmail.com> Cc: Breno Leitao <leitao@debian.org> Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com> Cc: Andrii Nakryiko <andrii.nakryiko@gmail.com> Cc: Gabriele Monaco <gmonaco@redhat.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Link: https://lore.kernel.org/20250510163730.092fad5b@gandalf.local.home Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Acked-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> |
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Libo Chen
|
3fc567e4c0 |
sched/numa: add tracepoint that tracks the skipping of numa balancing due to cpuset memory pinning
Unlike sched_skip_vma_numa tracepoint which tracks skipped VMAs, this tracks the task subjected to cpuset.mems pinning and prints out its allowed memory node mask. Link: https://lkml.kernel.org/r/20250424024523.2298272-3-libo.chen@oracle.com Signed-off-by: Libo Chen <libo.chen@oracle.com> Cc: "Chen, Tim C" <tim.c.chen@intel.com> Cc: Chen Yu <yu.c.chen@intel.com> Cc: Chris Hyser <chris.hyser@oracle.com> Cc: Daniel Jordan <daniel.m.jordan@oracle.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: K Prateek Nayak <kprateek.nayak@amd.com> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Madadi Vineeth Reddy <vineethr@linux.ibm.com> Cc: Mel Gorman <mgorman <mgorman@suse.de> Cc: Michal Koutný <mkoutny@suse.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Raghavendra K T <raghavendra.kt@amd.com> Cc: Srikanth Aithal <sraithal@amd.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Tejun Heo <tj@kernel.org> Cc: Venkat Rao Bagalkote <venkat88@linux.ibm.com> Cc: Vincent Guittot <vincent.guittot@linaro.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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|
Fan Ni
|
50dbe53129 |
khugepaged: pass folio instead of head page to trace events
The trace functions trace_mm_collapse_huge_page_isolate() and trace_mm_khugepaged_scan_pmd() each have a single user, which always passes in the head page of a folio. Refactor both functions to take a folio directly. Link: https://lkml.kernel.org/r/20250425002425.533698-1-nifan.cxl@gmail.com Signed-off-by: Fan Ni <fan.ni@samsung.com> Reviewed-by: Nico Pache <npache@redhat.com> Reviewed-by: Davidlohr Bueso <dave@stgolabs.net> Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com> Reviewed-by: Yang Shi <yang@os.amperecomputing.com> Acked-by: David Hildenbrand <david@redhat.com> Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Adam Manzanares <a.manzanares@samsung.com> Cc: Luis Chamberalin <mcgrof@kernel.org> Cc: Mariano Pache <npache@redhat.com> Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
|
Jeff Layton
|
18c64378ad |
sunrpc: add info about xprt queue times to svc_xprt_dequeue tracepoint
I've been looking at a problem where we see increased RPC timeouts in clients when the nfs_layout_flexfiles dataserver_timeo value is tuned very low (6s). This is necessary to ensure quick failover to a different mirror if a server goes down, but it causes a lot more major RPC timeouts. Ultimately, the problem is server-side however. It's sometimes doesn't respond to connection attempts. My theory is that the interrupt handler runs when a connection comes in, the xprt ends up being enqueued, but it takes a significant amount of time for the nfsd thread to pick it up. Currently, the svc_xprt_dequeue tracepoint displays "wakeup-us". This is the time between the wake_up() call, and the thread dequeueing the xprt. If no thread was woken, or the thread ended up picking up a different xprt than intended, then this value won't tell us how long the xprt was waiting. Add a new xpt_qtime field to struct svc_xprt and set it in svc_xprt_enqueue(). When the dequeue tracepoint fires, also store the time that the xprt sat on the queue in total. Display it as "qtime-us". Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> |
||
|
Cedric Xing
|
b9e22b35d4 |
tsm-mr: Add TVM Measurement Register support
Introduce new TSM Measurement helper library (tsm-mr) for TVM guest drivers
to expose MRs (Measurement Registers) as sysfs attributes, with Crypto
Agility support.
Add the following new APIs (see include/linux/tsm-mr.h for details):
- tsm_mr_create_attribute_group(): Take on input a `struct
tsm_measurements` instance, which includes one `struct
tsm_measurement_register` per MR with properties like `TSM_MR_F_READABLE`
and `TSM_MR_F_WRITABLE`, to determine the supported operations and create
the sysfs attributes accordingly. On success, return a `struct
attribute_group` instance that will typically be included by the guest
driver into `miscdevice.groups` before calling misc_register().
- tsm_mr_free_attribute_group(): Free the memory allocated to the attrubute
group returned by tsm_mr_create_attribute_group().
tsm_mr_create_attribute_group() creates one attribute for each MR, with
names following this pattern:
MRNAME[:HASH]
- MRNAME - Placeholder for the MR name, as specified by
`tsm_measurement_register.mr_name`.
- :HASH - Optional suffix indicating the hash algorithm associated with
this MR, as specified by `tsm_measurement_register.mr_hash`.
Support Crypto Agility by allowing multiple definitions of the same MR
(i.e., with the same `mr_name`) with distinct HASH algorithms.
NOTE: Crypto Agility, introduced in TPM 2.0, allows new hash algorithms to
be introduced without breaking compatibility with applications using older
algorithms. CC architectures may face the same challenge in the future,
needing new hashes for security while retaining compatibility with older
hashes, hence the need for Crypto Agility.
Signed-off-by: Cedric Xing <cedric.xing@intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Dionna Amalie Glaze <dionnaglaze@google.com>
[djbw: fixup bin_attr const conflict]
Link: https://patch.msgid.link/20250509020739.882913-1-dan.j.williams@intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
|
||
|
Jakub Kicinski
|
6b02fd7799 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.15-rc6). No conflicts. Adjacent changes: net/core/dev.c: |
||
|
Christoph Hellwig
|
402dd9f02c |
f2fs: remove wbc->for_reclaim handling
Since commits |
||
|
Linus Torvalds
|
0d8d44db29 |
for-6.15-rc5-tag
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Merge tag 'for-6.15-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
- revert device path canonicalization, this does not work as intended
with namespaces and is not reliable in all setups
- fix crash in scrub when checksum tree is not valid, e.g. when mounted
with rescue=ignoredatacsums
- fix crash when tracepoint btrfs_prelim_ref_insert is enabled
- other minor fixups:
- open code folio_index(), meant to be used in MM code
- use matching type for sizeof in compression allocation
* tag 'for-6.15-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: open code folio_index() in btree_clear_folio_dirty_tag()
Revert "btrfs: canonicalize the device path before adding it"
btrfs: avoid NULL pointer dereference if no valid csum tree
btrfs: handle empty eb->folios in num_extent_folios()
btrfs: correct the order of prelim_ref arguments in btrfs__prelim_ref
btrfs: compression: adjust cb->compressed_folios allocation type
|
||
|
Christoph Hellwig
|
eeadd68e2a |
block: remove bounce buffering support
The block layer bounce buffering support is unused now, remove it. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: John Garry <john.g.garry@oracle.com> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Link: https://lore.kernel.org/r/20250505081138.3435992-7-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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|
Goldwyn Rodrigues
|
bc7e097509 |
btrfs: correct the order of prelim_ref arguments in btrfs__prelim_ref
btrfs_prelim_ref() calls the old and new reference variables in the incorrect order. This causes a NULL pointer dereference because oldref is passed as NULL to trace_btrfs_prelim_ref_insert(). Note, trace_btrfs_prelim_ref_insert() is being called with newref as oldref (and oldref as NULL) on purpose in order to print out the values of newref. To reproduce: echo 1 > /sys/kernel/debug/tracing/events/btrfs/btrfs_prelim_ref_insert/enable Perform some writeback operations. Backtrace: BUG: kernel NULL pointer dereference, address: 0000000000000018 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 115949067 P4D 115949067 PUD 11594a067 PMD 0 Oops: Oops: 0000 [#1] SMP NOPTI CPU: 1 UID: 0 PID: 1188 Comm: fsstress Not tainted 6.15.0-rc2-tester+ #47 PREEMPT(voluntary) 7ca2cef72d5e9c600f0c7718adb6462de8149622 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-2-gc13ff2cd-prebuilt.qemu.org 04/01/2014 RIP: 0010:trace_event_raw_event_btrfs__prelim_ref+0x72/0x130 Code: e8 43 81 9f ff 48 85 c0 74 78 4d 85 e4 0f 84 8f 00 00 00 49 8b 94 24 c0 06 00 00 48 8b 0a 48 89 48 08 48 8b 52 08 48 89 50 10 <49> 8b 55 18 48 89 50 18 49 8b 55 20 48 89 50 20 41 0f b6 55 28 88 RSP: 0018:ffffce44820077a0 EFLAGS: 00010286 RAX: ffff8c6b403f9014 RBX: ffff8c6b55825730 RCX: 304994edf9cf506b RDX: d8b11eb7f0fdb699 RSI: ffff8c6b403f9010 RDI: ffff8c6b403f9010 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000010 R10: 00000000ffffffff R11: 0000000000000000 R12: ffff8c6b4e8fb000 R13: 0000000000000000 R14: ffffce44820077a8 R15: ffff8c6b4abd1540 FS: 00007f4dc6813740(0000) GS:ffff8c6c1d378000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000018 CR3: 000000010eb42000 CR4: 0000000000750ef0 PKRU: 55555554 Call Trace: <TASK> prelim_ref_insert+0x1c1/0x270 find_parent_nodes+0x12a6/0x1ee0 ? __entry_text_end+0x101f06/0x101f09 ? srso_alias_return_thunk+0x5/0xfbef5 ? srso_alias_return_thunk+0x5/0xfbef5 ? srso_alias_return_thunk+0x5/0xfbef5 ? srso_alias_return_thunk+0x5/0xfbef5 btrfs_is_data_extent_shared+0x167/0x640 ? fiemap_process_hole+0xd0/0x2c0 extent_fiemap+0xa5c/0xbc0 ? __entry_text_end+0x101f05/0x101f09 btrfs_fiemap+0x7e/0xd0 do_vfs_ioctl+0x425/0x9d0 __x64_sys_ioctl+0x75/0xc0 Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
||
|
Breno Leitao
|
1df4a94544 |
trace: tcp: Add const qualifier to skb parameter in tcp_probe event
Change the tcp_probe tracepoint to accept a const struct sk_buff parameter instead of a non-const one. This improves type safety and better reflects that the skb is not modified within the tracepoint implementation. Signed-off-by: Breno Leitao <leitao@debian.org> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://patch.msgid.link/20250416-tcp_probe-v1-1-1edc3c5a1cb8@debian.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
David Howells
|
fba6995798 |
rxrpc: Add more CHALLENGE/RESPONSE packet tracing
Add more tracing for CHALLENGE and RESPONSE packets. Currently, rxrpc only has client-relevant tracepoints (rx_challenge and tx_response), but add the server-side ones too. Further, record the service ID in the rx_challenge tracepoint as well. Signed-off-by: David Howells <dhowells@redhat.com> cc: Marc Dionne <marc.dionne@auristor.com> cc: Simon Horman <horms@kernel.org> cc: linux-afs@lists.infradead.org Link: https://patch.msgid.link/20250411095303.2316168-14-dhowells@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
David Howells
|
d03539d5c2 |
rxrpc: Display security params in the afs_cb_call tracepoint
Make the afs_cb_call tracepoint display some security parameters to make debugging easier. Signed-off-by: David Howells <dhowells@redhat.com> cc: Marc Dionne <marc.dionne@auristor.com> cc: Simon Horman <horms@kernel.org> cc: linux-afs@lists.infradead.org Link: https://patch.msgid.link/20250411095303.2316168-12-dhowells@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
David Howells
|
7a7513a308 |
rxrpc: rxgk: Implement connection rekeying
Implement rekeying of connections with the RxGK security class. This involves regenerating the keys with a different key number as part of the input data after a certain amount of time or a certain amount of bytes encrypted. Rekeying may be triggered by either end. The LSW of the key number is inserted into the security-specific field in the RX header, and we try and expand it to 32-bits to make it last longer. Signed-off-by: David Howells <dhowells@redhat.com> cc: Marc Dionne <marc.dionne@auristor.com> cc: Herbert Xu <herbert@gondor.apana.org.au> cc: Chuck Lever <chuck.lever@oracle.com> cc: Simon Horman <horms@kernel.org> cc: linux-afs@lists.infradead.org Link: https://patch.msgid.link/20250411095303.2316168-10-dhowells@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
David Howells
|
9d1d2b5934 |
rxrpc: rxgk: Implement the yfs-rxgk security class (GSSAPI)
Implement the basic parts of the yfs-rxgk security class (security index 6) to support GSSAPI-negotiated security. Signed-off-by: David Howells <dhowells@redhat.com> cc: Marc Dionne <marc.dionne@auristor.com> cc: Herbert Xu <herbert@gondor.apana.org.au> cc: Chuck Lever <chuck.lever@oracle.com> cc: Simon Horman <horms@kernel.org> cc: linux-afs@lists.infradead.org Link: https://patch.msgid.link/20250411095303.2316168-9-dhowells@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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|
David Howells
|
5800b1cf3f |
rxrpc: Allow CHALLENGEs to the passed to the app for a RESPONSE
Allow the app to request that CHALLENGEs be passed to it through an out-of-band queue that allows recvmsg() to pick it up so that the app can add data to it with sendmsg(). This will allow the application (AFS or userspace) to interact with the process if it wants to and put values into user-defined fields. This will be used by AFS when talking to a fileserver to supply that fileserver with a crypto key by which callback RPCs can be encrypted (ie. notifications from the fileserver to the client). Signed-off-by: David Howells <dhowells@redhat.com> cc: Marc Dionne <marc.dionne@auristor.com> cc: Simon Horman <horms@kernel.org> cc: linux-afs@lists.infradead.org Link: https://patch.msgid.link/20250411095303.2316168-5-dhowells@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Kuniyuki Iwashima
|
2a63dd0edf |
net: Retire DCCP socket.
DCCP was orphaned in 2021 by commit |
||
|
Breno Leitao
|
0f08335ade |
trace: tcp: Add tracepoint for tcp_sendmsg_locked()
Add a tracepoint to monitor TCP send operations, enabling detailed visibility into TCP message transmission. Create a new tracepoint within the tcp_sendmsg_locked function, capturing traditional fields along with size_goal, which indicates the optimal data size for a single TCP segment. Additionally, a reference to the struct sock sk is passed, allowing direct access for BPF programs. The implementation is largely based on David's patch[1] and suggestions. Link: https://lore.kernel.org/all/70168c8f-bf52-4279-b4c4-be64527aa1ac@kernel.org/ [1] Signed-off-by: Breno Leitao <leitao@debian.org> Reviewed-by: David Ahern <dsahern@kernel.org> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://patch.msgid.link/20250408-tcpsendmsg-v3-2-208b87064c28@debian.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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|
Nam Cao
|
244132c4e5 |
tracing/timers: Rename the hrtimer_init event to hrtimer_setup
The function hrtimer_init() doesn't exist anymore. It was replaced by hrtimer_setup(). Thus, rename the hrtimer_init trace event to hrtimer_setup to keep it consistent. Signed-off-by: Nam Cao <namcao@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/all/cba84c3d853c5258aa3a262363a6eac08e2c7afc.1738746927.git.namcao@linutronix.de |
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|
Nam Cao
|
04257da0c9 |
hrtimers: Make callback function pointer private
Make the struct hrtimer::function field private, to prevent users from changing this field in an unsafe way. hrtimer_update_function() should be used if the callback function needs to be changed. Signed-off-by: Nam Cao <namcao@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/all/7d0e6e0c5c59a64a9bea940051aac05d750bc0c2.1738746927.git.namcao@linutronix.de |
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|
Andrii Nakryiko
|
3e816361e9 |
sched/tracepoints: Move and extend the sched_process_exit() tracepoint
It is useful to be able to access current->mm at task exit to, say, record a bunch of VMA information right before the task exits (e.g., for stack symbolization reasons when dealing with short-lived processes that exit in the middle of profiling session). Currently, trace_sched_process_exit() is triggered after exit_mm() which resets current->mm to NULL making this tracepoint unsuitable for inspecting and recording task's mm_struct-related data when tracing process lifetimes. There is a particularly suitable place, though, right after taskstats_exit() is called, but before we do exit_mm() and other exit_*() resource teardowns. taskstats performs a similar kind of accounting that some applications do with BPF, and so co-locating them seems like a good fit. So that's where trace_sched_process_exit() is moved with this patch. Also, existing trace_sched_process_exit() tracepoint is notoriously missing `group_dead` flag that is certainly useful in practice and some of our production applications have to work around this. So plumb `group_dead` through while at it, to have a richer and more complete tracepoint. Note that we can't use sched_process_template anymore, and so we use TRACE_EVENT()-based tracepoint definition. But all the field names and order, as well as assign and output logic remain intact. We just add one extra field at the end in backwards-compatible way. Document the dependency to sched_process_template anyway. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org> Acked-by: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20250402180925.90914-1-andrii@kernel.org |
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|
Linus Torvalds
|
94d471a4f4 |
NFS client updates for Linux 6.15
Highlights include:
Bugfixes:
- 3 Fixes for looping in the NFSv4 state manager delegation code.
- Fix for the NFSv4 state XDR code from Neil Brown.
- Fix a leaked reference in nfs_lock_and_join_requests().
- Fix a use-after-free in the delegation return code.
Features:
- Implemenation of the NFSv4.2 copy offload OFFLOAD_STATUS operation to
allow monitoring of an in-progress copy.
- Add a mount option to force NFSv3/NFSv4 to use READDIRPLUS in a
getdents() call.
- SUNRPC now allows some basic management of an existing RPC client's
connections using sysfs.
- Improvements to the automated teardown of a NFS client when the
container it was initiated from gets killed.
- Improvements to prevent tasks from getting stuck in a killable wait
state after calling exit_signals().
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Merge tag 'nfs-for-6.15-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client updates from Trond Myklebust:
"Bugfixes:
- Three fixes for looping in the NFSv4 state manager delegation code
- Fix for the NFSv4 state XDR code (Neil Brown)
- Fix a leaked reference in nfs_lock_and_join_requests()
- Fix a use-after-free in the delegation return code
Features:
- Implement the NFSv4.2 copy offload OFFLOAD_STATUS operation to
allow monitoring of an in-progress copy
- Add a mount option to force NFSv3/NFSv4 to use READDIRPLUS in a
getdents() call
- SUNRPC now allows some basic management of an existing RPC client's
connections using sysfs
- Improvements to the automated teardown of a NFS client when the
container it was initiated from gets killed
- Improvements to prevent tasks from getting stuck in a killable wait
state after calling exit_signals()"
* tag 'nfs-for-6.15-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (29 commits)
nfs: Add missing release on error in nfs_lock_and_join_requests()
NFSv4: Check for delegation validity in nfs_start_delegation_return_locked()
NFS: Don't allow waiting for exiting tasks
SUNRPC: Don't allow waiting for exiting tasks
NFSv4: Treat ENETUNREACH errors as fatal for state recovery
NFSv4: clp->cl_cons_state < 0 signifies an invalid nfs_client
NFSv4: Further cleanups to shutdown loops
NFS: Shut down the nfs_client only after all the superblocks
SUNRPC: rpc_clnt_set_transport() must not change the autobind setting
SUNRPC: rpcbind should never reset the port to the value '0'
pNFS/flexfiles: Report ENETDOWN as a connection error
pNFS/flexfiles: Treat ENETUNREACH errors as fatal in containers
NFS: Treat ENETUNREACH errors as fatal in containers
NFS: Add a mount option to make ENETUNREACH errors fatal
sunrpc: Add a sysfs file for one-step xprt deletion
sunrpc: Add a sysfs file for adding a new xprt
sunrpc: Add a sysfs files for rpc_clnt information
sunrpc: Add a sysfs attr for xprtsec
NFS: Add implid to sysfs
NFS: Extend rdirplus mount option with "force|none"
...
|
||
|
Linus Torvalds
|
eb0ece1602 |
- The 6 patch series "Enable strict percpu address space checks" from
Uros Bizjak uses x86 named address space qualifiers to provide compile-time checking of percpu area accesses. This has caused a small amount of fallout - two or three issues were reported. In all cases the calling code was founf to be incorrect. - The 4 patch series "Some cleanup for memcg" from Chen Ridong implements some relatively monir cleanups for the memcontrol code. - The 17 patch series "mm: fixes for device-exclusive entries (hmm)" from David Hildenbrand fixes a boatload of issues which David found then using device-exclusive PTE entries when THP is enabled. More work is needed, but this makes thins better - our own HMM selftests now succeed. - The 2 patch series "mm: zswap: remove z3fold and zbud" from Yosry Ahmed remove the z3fold and zbud implementations. They have been deprecated for half a year and nobody has complained. - The 5 patch series "mm: further simplify VMA merge operation" from Lorenzo Stoakes implements numerous simplifications in this area. No runtime effects are anticipated. - The 4 patch series "mm/madvise: remove redundant mmap_lock operations from process_madvise()" from SeongJae Park rationalizes the locking in the madvise() implementation. Performance gains of 20-25% were observed in one MADV_DONTNEED microbenchmark. - The 12 patch series "Tiny cleanup and improvements about SWAP code" from Baoquan He contains a number of touchups to issues which Baoquan noticed when working on the swap code. - The 2 patch series "mm: kmemleak: Usability improvements" from Catalin Marinas implements a couple of improvements to the kmemleak user-visible output. - The 2 patch series "mm/damon/paddr: fix large folios access and schemes handling" from Usama Arif provides a couple of fixes for DAMON's handling of large folios. - The 3 patch series "mm/damon/core: fix wrong and/or useless damos_walk() behaviors" from SeongJae Park fixes a few issues with the accuracy of kdamond's walking of DAMON regions. - The 3 patch series "expose mapping wrprotect, fix fb_defio use" from Lorenzo Stoakes changes the interaction between framebuffer deferred-io and core MM. No functional changes are anticipated - this is preparatory work for the future removal of page structure fields. - The 4 patch series "mm/damon: add support for hugepage_size DAMOS filter" from Usama Arif adds a DAMOS filter which permits the filtering by huge page sizes. - The 4 patch series "mm: permit guard regions for file-backed/shmem mappings" from Lorenzo Stoakes extends the guard region feature from its present "anon mappings only" state. The feature now covers shmem and file-backed mappings. - The 4 patch series "mm: batched unmap lazyfree large folios during reclamation" from Barry Song cleans up and speeds up the unmapping for pte-mapped large folios. - The 18 patch series "reimplement per-vma lock as a refcount" from Suren Baghdasaryan puts the vm_lock back into the vma. Our reasons for pulling it out were largely bogus and that change made the code more messy. This patchset provides small (0-10%) improvements on one microbenchmark. - The 5 patch series "Docs/mm/damon: misc DAMOS filters documentation fixes and improves" from SeongJae Park does some maintenance work on the DAMON docs. - The 27 patch series "hugetlb/CMA improvements for large systems" from Frank van der Linden addresses a pile of issues which have been observed when using CMA on large machines. - The 2 patch series "mm/damon: introduce DAMOS filter type for unmapped pages" from SeongJae Park enables users of DMAON/DAMOS to filter my the page's mapped/unmapped status. - The 19 patch series "zsmalloc/zram: there be preemption" from Sergey Senozhatsky teaches zram to run its compression and decompression operations preemptibly. - The 12 patch series "selftests/mm: Some cleanups from trying to run them" from Brendan Jackman fixes a pile of unrelated issues which Brendan encountered while runnimg our selftests. - The 2 patch series "fs/proc/task_mmu: add guard region bit to pagemap" from Lorenzo Stoakes permits userspace to use /proc/pid/pagemap to determine whether a particular page is a guard page. - The 7 patch series "mm, swap: remove swap slot cache" from Kairui Song removes the swap slot cache from the allocation path - it simply wasn't being effective. - The 5 patch series "mm: cleanups for device-exclusive entries (hmm)" from David Hildenbrand implements a number of unrelated cleanups in this code. - The 5 patch series "mm: Rework generic PTDUMP configs" from Anshuman Khandual implements a number of preparatoty cleanups to the GENERIC_PTDUMP Kconfig logic. - The 8 patch series "mm/damon: auto-tune aggregation interval" from SeongJae Park implements a feedback-driven automatic tuning feature for DAMON's aggregation interval tuning. - The 5 patch series "Fix lazy mmu mode" from Ryan Roberts fixes some issues in powerpc, sparc and x86 lazy MMU implementations. Ryan did this in preparation for implementing lazy mmu mode for arm64 to optimize vmalloc. - The 2 patch series "mm/page_alloc: Some clarifications for migratetype fallback" from Brendan Jackman reworks some commentary to make the code easier to follow. - The 3 patch series "page_counter cleanup and size reduction" from Shakeel Butt cleans up the page_counter code and fixes a size increase which we accidentally added late last year. - The 3 patch series "Add a command line option that enables control of how many threads should be used to allocate huge pages" from Thomas Prescher does that. It allows the careful operator to significantly reduce boot time by tuning the parallalization of huge page initialization. - The 3 patch series "Fix calculations in trace_balance_dirty_pages() for cgwb" from Tang Yizhou fixes the tracing output from the dirty page balancing code. - The 9 patch series "mm/damon: make allow filters after reject filters useful and intuitive" from SeongJae Park improves the handling of allow and reject filters. Behaviour is made more consistent and the documention is updated accordingly. - The 5 patch series "Switch zswap to object read/write APIs" from Yosry Ahmed updates zswap to the new object read/write APIs and thus permits the removal of some legacy code from zpool and zsmalloc. - The 6 patch series "Some trivial cleanups for shmem" from Baolin Wang does as it claims. - The 20 patch series "fs/dax: Fix ZONE_DEVICE page reference counts" from Alistair Popple regularizes the weird ZONE_DEVICE page refcount handling in DAX, permittig the removal of a number of special-case checks. - The 4 patch series "refactor mremap and fix bug" from Lorenzo Stoakes is a preparatoty refactoring and cleanup of the mremap() code. - The 20 patch series "mm: MM owner tracking for large folios (!hugetlb) + CONFIG_NO_PAGE_MAPCOUNT" from David Hildenbrand reworks the manner in which we determine whether a large folio is known to be mapped exclusively into a single MM. - The 8 patch series "mm/damon: add sysfs dirs for managing DAMOS filters based on handling layers" from SeongJae Park adds a couple of new sysfs directories to ease the management of DAMON/DAMOS filters. - The 13 patch series "arch, mm: reduce code duplication in mem_init()" from Mike Rapoport consolidates many per-arch implementations of mem_init() into code generic code, where that is practical. - The 13 patch series "mm/damon/sysfs: commit parameters online via damon_call()" from SeongJae Park continues the cleaning up of sysfs access to DAMON internal data. - The 3 patch series "mm: page_ext: Introduce new iteration API" from Luiz Capitulino reworks the page_ext initialization to fix a boot-time crash which was observed with an unusual combination of compile and cmdline options. - The 8 patch series "Buddy allocator like (or non-uniform) folio split" from Zi Yan reworks the code to split a folio into smaller folios. The main benefit is lessened memory consumption: fewer post-split folios are generated. - The 2 patch series "Minimize xa_node allocation during xarry split" from Zi Yan reduces the number of xarray xa_nodes which are generated during an xarray split. - The 2 patch series "drivers/base/memory: Two cleanups" from Gavin Shan performs some maintenance work on the drivers/base/memory code. - The 3 patch series "Add tracepoints for lowmem reserves, watermarks and totalreserve_pages" from Martin Liu adds some more tracepoints to the page allocator code. - The 4 patch series "mm/madvise: cleanup requests validations and classifications" from SeongJae Park cleans up some warts which SeongJae observed during his earlier madvise work. - The 3 patch series "mm/hwpoison: Fix regressions in memory failure handling" from Shuai Xue addresses two quite serious regressions which Shuai has observed in the memory-failure implementation. - The 5 patch series "mm: reliable huge page allocator" from Johannes Weiner makes huge page allocations cheaper and more reliable by reducing fragmentation. - The 5 patch series "Minor memcg cleanups & prep for memdescs" from Matthew Wilcox is preparatory work for the future implementation of memdescs. - The 4 patch series "track memory used by balloon drivers" from Nico Pache introduces a way to track memory used by our various balloon drivers. - The 2 patch series "mm/damon: introduce DAMOS filter type for active pages" from Nhat Pham permits users to filter for active/inactive pages, separately for file and anon pages. - The 2 patch series "Adding Proactive Memory Reclaim Statistics" from Hao Jia separates the proactive reclaim statistics from the direct reclaim statistics. - The 2 patch series "mm/vmscan: don't try to reclaim hwpoison folio" from Jinjiang Tu fixes our handling of hwpoisoned pages within the reclaim code. -----BEGIN PGP SIGNATURE----- iHQEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZ+nZaAAKCRDdBJ7gKXxA jsOWAPiP4r7CJHMZRK4eyJOkvS1a1r+TsIarrFZtjwvf/GIfAQCEG+JDxVfUaUSF Ee93qSSLR1BkNdDw+931Pu0mXfbnBw== =Pn2K -----END PGP SIGNATURE----- Merge tag 'mm-stable-2025-03-30-16-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull MM updates from Andrew Morton: - The series "Enable strict percpu address space checks" from Uros Bizjak uses x86 named address space qualifiers to provide compile-time checking of percpu area accesses. This has caused a small amount of fallout - two or three issues were reported. In all cases the calling code was found to be incorrect. - The series "Some cleanup for memcg" from Chen Ridong implements some relatively monir cleanups for the memcontrol code. - The series "mm: fixes for device-exclusive entries (hmm)" from David Hildenbrand fixes a boatload of issues which David found then using device-exclusive PTE entries when THP is enabled. More work is needed, but this makes thins better - our own HMM selftests now succeed. - The series "mm: zswap: remove z3fold and zbud" from Yosry Ahmed remove the z3fold and zbud implementations. They have been deprecated for half a year and nobody has complained. - The series "mm: further simplify VMA merge operation" from Lorenzo Stoakes implements numerous simplifications in this area. No runtime effects are anticipated. - The series "mm/madvise: remove redundant mmap_lock operations from process_madvise()" from SeongJae Park rationalizes the locking in the madvise() implementation. Performance gains of 20-25% were observed in one MADV_DONTNEED microbenchmark. - The series "Tiny cleanup and improvements about SWAP code" from Baoquan He contains a number of touchups to issues which Baoquan noticed when working on the swap code. - The series "mm: kmemleak: Usability improvements" from Catalin Marinas implements a couple of improvements to the kmemleak user-visible output. - The series "mm/damon/paddr: fix large folios access and schemes handling" from Usama Arif provides a couple of fixes for DAMON's handling of large folios. - The series "mm/damon/core: fix wrong and/or useless damos_walk() behaviors" from SeongJae Park fixes a few issues with the accuracy of kdamond's walking of DAMON regions. - The series "expose mapping wrprotect, fix fb_defio use" from Lorenzo Stoakes changes the interaction between framebuffer deferred-io and core MM. No functional changes are anticipated - this is preparatory work for the future removal of page structure fields. - The series "mm/damon: add support for hugepage_size DAMOS filter" from Usama Arif adds a DAMOS filter which permits the filtering by huge page sizes. - The series "mm: permit guard regions for file-backed/shmem mappings" from Lorenzo Stoakes extends the guard region feature from its present "anon mappings only" state. The feature now covers shmem and file-backed mappings. - The series "mm: batched unmap lazyfree large folios during reclamation" from Barry Song cleans up and speeds up the unmapping for pte-mapped large folios. - The series "reimplement per-vma lock as a refcount" from Suren Baghdasaryan puts the vm_lock back into the vma. Our reasons for pulling it out were largely bogus and that change made the code more messy. This patchset provides small (0-10%) improvements on one microbenchmark. - The series "Docs/mm/damon: misc DAMOS filters documentation fixes and improves" from SeongJae Park does some maintenance work on the DAMON docs. - The series "hugetlb/CMA improvements for large systems" from Frank van der Linden addresses a pile of issues which have been observed when using CMA on large machines. - The series "mm/damon: introduce DAMOS filter type for unmapped pages" from SeongJae Park enables users of DMAON/DAMOS to filter my the page's mapped/unmapped status. - The series "zsmalloc/zram: there be preemption" from Sergey Senozhatsky teaches zram to run its compression and decompression operations preemptibly. - The series "selftests/mm: Some cleanups from trying to run them" from Brendan Jackman fixes a pile of unrelated issues which Brendan encountered while runnimg our selftests. - The series "fs/proc/task_mmu: add guard region bit to pagemap" from Lorenzo Stoakes permits userspace to use /proc/pid/pagemap to determine whether a particular page is a guard page. - The series "mm, swap: remove swap slot cache" from Kairui Song removes the swap slot cache from the allocation path - it simply wasn't being effective. - The series "mm: cleanups for device-exclusive entries (hmm)" from David Hildenbrand implements a number of unrelated cleanups in this code. - The series "mm: Rework generic PTDUMP configs" from Anshuman Khandual implements a number of preparatoty cleanups to the GENERIC_PTDUMP Kconfig logic. - The series "mm/damon: auto-tune aggregation interval" from SeongJae Park implements a feedback-driven automatic tuning feature for DAMON's aggregation interval tuning. - The series "Fix lazy mmu mode" from Ryan Roberts fixes some issues in powerpc, sparc and x86 lazy MMU implementations. Ryan did this in preparation for implementing lazy mmu mode for arm64 to optimize vmalloc. - The series "mm/page_alloc: Some clarifications for migratetype fallback" from Brendan Jackman reworks some commentary to make the code easier to follow. - The series "page_counter cleanup and size reduction" from Shakeel Butt cleans up the page_counter code and fixes a size increase which we accidentally added late last year. - The series "Add a command line option that enables control of how many threads should be used to allocate huge pages" from Thomas Prescher does that. It allows the careful operator to significantly reduce boot time by tuning the parallalization of huge page initialization. - The series "Fix calculations in trace_balance_dirty_pages() for cgwb" from Tang Yizhou fixes the tracing output from the dirty page balancing code. - The series "mm/damon: make allow filters after reject filters useful and intuitive" from SeongJae Park improves the handling of allow and reject filters. Behaviour is made more consistent and the documention is updated accordingly. - The series "Switch zswap to object read/write APIs" from Yosry Ahmed updates zswap to the new object read/write APIs and thus permits the removal of some legacy code from zpool and zsmalloc. - The series "Some trivial cleanups for shmem" from Baolin Wang does as it claims. - The series "fs/dax: Fix ZONE_DEVICE page reference counts" from Alistair Popple regularizes the weird ZONE_DEVICE page refcount handling in DAX, permittig the removal of a number of special-case checks. - The series "refactor mremap and fix bug" from Lorenzo Stoakes is a preparatoty refactoring and cleanup of the mremap() code. - The series "mm: MM owner tracking for large folios (!hugetlb) + CONFIG_NO_PAGE_MAPCOUNT" from David Hildenbrand reworks the manner in which we determine whether a large folio is known to be mapped exclusively into a single MM. - The series "mm/damon: add sysfs dirs for managing DAMOS filters based on handling layers" from SeongJae Park adds a couple of new sysfs directories to ease the management of DAMON/DAMOS filters. - The series "arch, mm: reduce code duplication in mem_init()" from Mike Rapoport consolidates many per-arch implementations of mem_init() into code generic code, where that is practical. - The series "mm/damon/sysfs: commit parameters online via damon_call()" from SeongJae Park continues the cleaning up of sysfs access to DAMON internal data. - The series "mm: page_ext: Introduce new iteration API" from Luiz Capitulino reworks the page_ext initialization to fix a boot-time crash which was observed with an unusual combination of compile and cmdline options. - The series "Buddy allocator like (or non-uniform) folio split" from Zi Yan reworks the code to split a folio into smaller folios. The main benefit is lessened memory consumption: fewer post-split folios are generated. - The series "Minimize xa_node allocation during xarry split" from Zi Yan reduces the number of xarray xa_nodes which are generated during an xarray split. - The series "drivers/base/memory: Two cleanups" from Gavin Shan performs some maintenance work on the drivers/base/memory code. - The series "Add tracepoints for lowmem reserves, watermarks and totalreserve_pages" from Martin Liu adds some more tracepoints to the page allocator code. - The series "mm/madvise: cleanup requests validations and classifications" from SeongJae Park cleans up some warts which SeongJae observed during his earlier madvise work. - The series "mm/hwpoison: Fix regressions in memory failure handling" from Shuai Xue addresses two quite serious regressions which Shuai has observed in the memory-failure implementation. - The series "mm: reliable huge page allocator" from Johannes Weiner makes huge page allocations cheaper and more reliable by reducing fragmentation. - The series "Minor memcg cleanups & prep for memdescs" from Matthew Wilcox is preparatory work for the future implementation of memdescs. - The series "track memory used by balloon drivers" from Nico Pache introduces a way to track memory used by our various balloon drivers. - The series "mm/damon: introduce DAMOS filter type for active pages" from Nhat Pham permits users to filter for active/inactive pages, separately for file and anon pages. - The series "Adding Proactive Memory Reclaim Statistics" from Hao Jia separates the proactive reclaim statistics from the direct reclaim statistics. - The series "mm/vmscan: don't try to reclaim hwpoison folio" from Jinjiang Tu fixes our handling of hwpoisoned pages within the reclaim code. * tag 'mm-stable-2025-03-30-16-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (431 commits) mm/page_alloc: remove unnecessary __maybe_unused in order_to_pindex() x86/mm: restore early initialization of high_memory for 32-bits mm/vmscan: don't try to reclaim hwpoison folio mm/hwpoison: introduce folio_contain_hwpoisoned_page() helper cgroup: docs: add pswpin and pswpout items in cgroup v2 doc mm: vmscan: split proactive reclaim statistics from direct reclaim statistics selftests/mm: speed up split_huge_page_test selftests/mm: uffd-unit-tests support for hugepages > 2M docs/mm/damon/design: document active DAMOS filter type mm/damon: implement a new DAMOS filter type for active pages fs/dax: don't disassociate zero page entries MM documentation: add "Unaccepted" meminfo entry selftests/mm: add commentary about 9pfs bugs fork: use __vmalloc_node() for stack allocation docs/mm: Physical Memory: Populate the "Zones" section xen: balloon: update the NR_BALLOON_PAGES state hv_balloon: update the NR_BALLOON_PAGES state balloon_compaction: update the NR_BALLOON_PAGES state meminfo: add a per node counter for balloon drivers mm: remove references to folio in __memcg_kmem_uncharge_page() ... |
||
|
Linus Torvalds
|
744fab2d9f |
tracing updates for v6.15:
- Add option traceoff_after_boot In order to debug kernel boot, it sometimes is helpful to enable tracing via the kernel command line. Unfortunately, by the time the login prompt appears, the trace is overwritten by the init process and other user space start up applications. Adding a "traceoff_after_boot" will disable tracing when the kernel passes control to init which will allow developers to be able to see the traces that occurred during boot. - Clean up the mmflags macros that display the GFP flags in trace events The macros to print the GFP flags for trace events had a bit of duplication. The code was restructured to remove duplication and in the process it also adds some flags that were missed before. - Removed some dead code and scripts/draw_functrace.py draw_functrace.py hasn't worked in years and as nobody complained about it, remove it. - Constify struct event_trigger_ops The event_trigger_ops is just a structure that has function pointers that are assigned when the variables are created. These variables should all be constants. - Other minor clean ups and fixes -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCZ+V9IhQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qr4RAP9JhE3n69pGuOVaJTN/LGLr2Axl59n4 KqZSZS1nUM76/gD6AxYpR7nxyxgJ7VjNkLptS9tSjJVdPDxGAl0v3eO04w4= =SU30 -----END PGP SIGNATURE----- Merge tag 'trace-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull tracing updates from Steven Rostedt: - Add option traceoff_after_boot In order to debug kernel boot, it sometimes is helpful to enable tracing via the kernel command line. Unfortunately, by the time the login prompt appears, the trace is overwritten by the init process and other user space start up applications. Adding a "traceoff_after_boot" will disable tracing when the kernel passes control to init which will allow developers to be able to see the traces that occurred during boot. - Clean up the mmflags macros that display the GFP flags in trace events The macros to print the GFP flags for trace events had a bit of duplication. The code was restructured to remove duplication and in the process it also adds some flags that were missed before. - Removed some dead code and scripts/draw_functrace.py draw_functrace.py hasn't worked in years and as nobody complained about it, remove it. - Constify struct event_trigger_ops The event_trigger_ops is just a structure that has function pointers that are assigned when the variables are created. These variables should all be constants. - Other minor clean ups and fixes * tag 'trace-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: tracing: Replace strncpy with memcpy for fixed-length substring copy tracing: Fix synth event printk format for str fields tracing: Do not use PERF enums when perf is not defined tracing: Ensure module defining synth event cannot be unloaded while tracing tracing: fix return value in __ftrace_event_enable_disable for TRACE_REG_UNREGISTER tracing/osnoise: Fix possible recursive locking for cpus_read_lock() tracing: Align synth event print fmt tracing: gfp: vsprintf: Do not print "none" when using %pGg printf format tracepoint: Print the function symbol when tracepoint_debug is set tracing: Constify struct event_trigger_ops scripts/tracing: Remove scripts/tracing/draw_functrace.py tracing: Update MAINTAINERS file to include tracepoint.c tracing/user_events: Slightly simplify user_seq_show() tracing/user_events: Don't use %pK through printk tracing: gfp: Remove duplication of recording GFP flags tracing: Remove orphaned event_trace_printk ring-buffer: Fix typo in comment about header page pointer tracing: Add traceoff_after_boot option |
||
|
Linus Torvalds
|
88221ac0d5 |
Latency tracing changes for v6.15:
- Add some trace events to osnoise and timerlat sample generation
This adds more information to the osnoise and timerlat tracers as well as
allows BPF programs to be attached to these locations to extract even more
data.
- Fix to DECLARE_TRACE_CONDITION() macro
It wasn't used but now will be and it happened to be broken causing the
build to fail.
- Add scheduler specification monitors to runtime verifier (RV)
This is a continuation of Daniel Bristot's work.
RV allows monitors to run and react concurrently. Running the cumulative
model is equivalent to running single components using the same
reactors, with the advantage that it's easier to point out which
specification failed in case of error.
This update introduces nested monitors to RV, in short, the sysfs
monitor folder will contain a monitor named sched, which is nothing but
an empty container for other monitors. Controlling the sched monitor
(enable, disable, set reactors) controls all nested monitors.
The following scheduling monitors are added:
* sco: scheduling context operations
Monitor to ensure sched_set_state happens only in thread context
* tss: task switch while scheduling
Monitor to ensure sched_switch happens only in scheduling context
* snroc: set non runnable on its own context
Monitor to ensure set_state happens only in the respective task's context
* scpd: schedule called with preemption disabled
Monitor to ensure schedule is called with preemption disabled
* snep: schedule does not enable preempt
Monitor to ensure schedule does not enable preempt
* sncid: schedule not called with interrupt disabled
Monitor to ensure schedule is not called with interrupt disabled
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Merge tag 'trace-latency-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull latency tracing updates from Steven Rostedt:
- Add some trace events to osnoise and timerlat sample generation
This adds more information to the osnoise and timerlat tracers as
well as allows BPF programs to be attached to these locations to
extract even more data.
- Fix to DECLARE_TRACE_CONDITION() macro
It wasn't used but now will be and it happened to be broken causing
the build to fail.
- Add scheduler specification monitors to runtime verifier (RV)
This is a continuation of Daniel Bristot's work.
RV allows monitors to run and react concurrently. Running the
cumulative model is equivalent to running single components using the
same reactors, with the advantage that it's easier to point out which
specification failed in case of error.
This update introduces nested monitors to RV, in short, the sysfs
monitor folder will contain a monitor named sched, which is nothing
but an empty container for other monitors. Controlling the sched
monitor (enable, disable, set reactors) controls all nested monitors.
The following scheduling monitors are added:
- sco: scheduling context operations
Monitor to ensure sched_set_state happens only in thread context
- tss: task switch while scheduling
Monitor to ensure sched_switch happens only in scheduling context
- snroc: set non runnable on its own context
Monitor to ensure set_state happens only in the respective task's context
- scpd: schedule called with preemption disabled
Monitor to ensure schedule is called with preemption disabled
- snep: schedule does not enable preempt
Monitor to ensure schedule does not enable preempt
- sncid: schedule not called with interrupt disabled
Monitor to ensure schedule is not called with interrupt disabled
* tag 'trace-latency-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tools/rv: Allow rv list to filter for container
Documentation/rv: Add docs for the sched monitors
verification/dot2k: Add support for nested monitors
tools/rv: Add support for nested monitors
rv: Add scpd, snep and sncid per-cpu monitors
rv: Add snroc per-task monitor
rv: Add sco and tss per-cpu monitors
rv: Add option for nested monitors and include sched
sched: Add sched tracepoints for RV task model
rv: Add license identifiers to monitor files
tracing: Fix DECLARE_TRACE_CONDITION
trace/osnoise: Add trace events for samples
|
||
|
Linus Torvalds
|
b2e7b0ffa5 |
Changes since last update:
- Support 48-bit block addressing for large images;
- Introduce encoded extents to reduce metadata on larger pclusters;
- Enable unaligned compressed data to improve Zstd compression speed;
- Allow 16-byte volume names again;
- Minor cleanups.
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Merge tag 'erofs-for-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs
Pull erofs updates from Gao Xiang:
"In this cycle, EROFS 48-bit block addressing is available to support
massive datasets for model training and other large data archive use
cases.
In addition, byte-oriented encoded extents have been supported to
reduce metadata sizes when using large configurations as well as to
improve Zstd compression speed.
There are some bugfixes and cleanups as usual.
Summary:
- Support 48-bit block addressing for large images
- Introduce encoded extents to reduce metadata on larger pclusters
- Enable unaligned compressed data to improve Zstd compression speed
- Allow 16-byte volume names again
- Minor cleanups"
* tag 'erofs-for-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
erofs: enable 48-bit layout support
erofs: support unaligned encoded data
erofs: implement encoded extent metadata
erofs: add encoded extent on-disk definition
erofs: initialize decompression early
erofs: support dot-omitted directories
erofs: implement 48-bit block addressing for unencoded inodes
erofs: add 48-bit block addressing on-disk support
erofs: simplify erofs_{read,fill}_inode()
erofs: get rid of erofs_map_blocks_flatmode()
erofs: move {in,out}pages into struct z_erofs_decompress_req
erofs: clean up header parsing for ztailpacking and fragments
erofs: simplify tail inline pcluster handling
erofs: allow 16-byte volume name again
erofs: get rid of erofs_kmap_type
erofs: use Z_EROFS_LCLUSTER_TYPE_MAX to simplify switches
|
||
|
Linus Torvalds
|
1a9239bb42 |
Networking changes for 6.15.
Core & protocols
----------------
- Continue Netlink conversions to per-namespace RTNL lock
(IPv4 routing, routing rules, routing next hops, ARP ioctls).
- Continue extending the use of netdev instance locks. As a driver
opt-in protect queue operations and (in due course) ethtool
operations with the instance lock and not RTNL lock.
- Support collecting TCP timestamps (data submitted, sent, acked)
in BPF, allowing for transparent (to the application) and lower
overhead tracking of TCP RPC performance.
- Tweak existing networking Rx zero-copy infra to support zero-copy
Rx via io_uring.
- Optimize MPTCP performance in single subflow mode by 29%.
- Enable GRO on packets which went thru XDP CPU redirect (were queued
for processing on a different CPU). Improving TCP stream performance
up to 2x.
- Improve performance of contended connect() by 200% by searching
for an available 4-tuple under RCU rather than a spin lock.
Bring an additional 229% improvement by tweaking hash distribution.
- Avoid unconditionally touching sk_tsflags on RX, improving
performance under UDP flood by as much as 10%.
- Avoid skb_clone() dance in ping_rcv() to improve performance under
ping flood.
- Avoid FIB lookup in netfilter if socket is available, 20% perf win.
- Rework network device creation (in-kernel) API to more clearly
identify network namespaces and their roles.
There are up to 4 namespace roles but we used to have just 2 netns
pointer arguments, interpreted differently based on context.
- Use sysfs_break_active_protection() instead of trylock to avoid
deadlocks between unregistering objects and sysfs access.
- Add a new sysctl and sockopt for capping max retransmit timeout
in TCP.
- Support masking port and DSCP in routing rule matches.
- Support dumping IPv4 multicast addresses with RTM_GETMULTICAST.
- Support specifying at what time packet should be sent on AF_XDP
sockets.
- Expose TCP ULP diagnostic info (for TLS and MPTCP) to non-admin users.
- Add Netlink YAML spec for WiFi (nl80211) and conntrack.
- Introduce EXPORT_IPV6_MOD() and EXPORT_IPV6_MOD_GPL() for symbols
which only need to be exported when IPv6 support is built as a module.
- Age FDB entries based on Rx not Tx traffic in VxLAN, similar
to normal bridging.
- Allow users to specify source port range for GENEVE tunnels.
- netconsole: allow attaching kernel release, CPU ID and task name
to messages as metadata
Driver API
----------
- Continue rework / fixing of Energy Efficient Ethernet (EEE) across
the SW layers. Delegate the responsibilities to phylink where possible.
Improve its handling in phylib.
- Support symmetric OR-XOR RSS hashing algorithm.
- Support tracking and preserving IRQ affinity by NAPI itself.
- Support loopback mode speed selection for interface selftests.
Device drivers
--------------
- Remove the IBM LCS driver for s390.
- Remove the sb1000 cable modem driver.
- Add support for SFP module access over SMBus.
- Add MCTP transport driver for MCTP-over-USB.
- Enable XDP metadata support in multiple drivers.
- Ethernet high-speed NICs:
- Broadcom (bnxt):
- add PCIe TLP Processing Hints (TPH) support for new AMD platforms
- support dumping RoCE queue state for debug
- opt into instance locking
- Intel (100G, ice, idpf):
- ice: rework MSI-X IRQ management and distribution
- ice: support for E830 devices
- iavf: add support for Rx timestamping
- iavf: opt into instance locking
- nVidia/Mellanox:
- mlx4: use page pool memory allocator for Rx
- mlx5: support for one PTP device per hardware clock
- mlx5: support for 200Gbps per-lane link modes
- mlx5: move IPSec policy check after decryption
- AMD/Solarflare:
- support FW flashing via devlink
- Cisco (enic):
- use page pool memory allocator for Rx
- enable 32, 64 byte CQEs
- get max rx/tx ring size from the device
- Meta (fbnic):
- support flow steering and RSS configuration
- report queue stats
- support TCP segmentation
- support IRQ coalescing
- support ring size configuration
- Marvell/Cavium:
- support AF_XDP
- Wangxun:
- support for PTP clock and timestamping
- Huawei (hibmcge):
- checksum offload
- add more statistics
- Ethernet virtual:
- VirtIO net:
- aggressively suppress Tx completions, improve perf by 96% with
1 CPU and 55% with 2 CPUs
- expose NAPI to IRQ mapping and persist NAPI settings
- Google (gve):
- support XDP in DQO RDA Queue Format
- opt into instance locking
- Microsoft vNIC:
- support BIG TCP
- Ethernet NICs consumer, and embedded:
- Synopsys (stmmac):
- cleanup Tx and Tx clock setting and other link-focused cleanups
- enable SGMII and 2500BASEX mode switching for Intel platforms
- support Sophgo SG2044
- Broadcom switches (b53):
- support for BCM53101
- TI:
- iep: add perout configuration support
- icssg: support XDP
- Cadence (macb):
- implement BQL
- Xilinx (axinet):
- support dynamic IRQ moderation and changing coalescing at runtime
- implement BQL
- report standard stats
- MediaTek:
- support phylink managed EEE
- Intel:
- igc: don't restart the interface on every XDP program change
- RealTek (r8169):
- support reading registers of internal PHYs directly
- increase max jumbo packet size on RTL8125/RTL8126
- Airoha:
- support for RISC-V NPU packet processing unit
- enable scatter-gather and support MTU up to 9kB
- Tehuti (tn40xx):
- support cards with TN4010 MAC and an Aquantia AQR105 PHY
- Ethernet PHYs:
- support for TJA1102S, TJA1121
- dp83tg720: add randomized polling intervals for link detection
- dp83822: support changing the transmit amplitude voltage
- support for LEDs on 88q2xxx
- CAN:
- canxl: support Remote Request Substitution bit access
- flexcan: add S32G2/S32G3 SoC
- WiFi:
- remove cooked monitor support
- strict mode for better AP testing
- basic EPCS support
- OMI RX bandwidth reduction support
- batman-adv: add support for jumbo frames
- WiFi drivers:
- RealTek (rtw88):
- support RTL8814AE and RTL8814AU
- RealTek (rtw89):
- switch using wiphy_lock and wiphy_work
- add BB context to manipulate two PHY as preparation of MLO
- improve BT-coexistence mechanism to play A2DP smoothly
- Intel (iwlwifi):
- add new iwlmld sub-driver for latest HW/FW combinations
- MediaTek (mt76):
- preparation for mt7996 Multi-Link Operation (MLO) support
- Qualcomm/Atheros (ath12k):
- continued work on MLO
- Silabs (wfx):
- Wake-on-WLAN support
- Bluetooth:
- add support for skb TX SND/COMPLETION timestamping
- hci_core: enable buffer flow control for SCO/eSCO
- coredump: log devcd dumps into the monitor
- Bluetooth drivers:
- intel: add support to configure TX power
- nxp: handle bootloader error during cmd5 and cmd7
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core & protocols:
- Continue Netlink conversions to per-namespace RTNL lock
(IPv4 routing, routing rules, routing next hops, ARP ioctls)
- Continue extending the use of netdev instance locks. As a driver
opt-in protect queue operations and (in due course) ethtool
operations with the instance lock and not RTNL lock.
- Support collecting TCP timestamps (data submitted, sent, acked) in
BPF, allowing for transparent (to the application) and lower
overhead tracking of TCP RPC performance.
- Tweak existing networking Rx zero-copy infra to support zero-copy
Rx via io_uring.
- Optimize MPTCP performance in single subflow mode by 29%.
- Enable GRO on packets which went thru XDP CPU redirect (were queued
for processing on a different CPU). Improving TCP stream
performance up to 2x.
- Improve performance of contended connect() by 200% by searching for
an available 4-tuple under RCU rather than a spin lock. Bring an
additional 229% improvement by tweaking hash distribution.
- Avoid unconditionally touching sk_tsflags on RX, improving
performance under UDP flood by as much as 10%.
- Avoid skb_clone() dance in ping_rcv() to improve performance under
ping flood.
- Avoid FIB lookup in netfilter if socket is available, 20% perf win.
- Rework network device creation (in-kernel) API to more clearly
identify network namespaces and their roles. There are up to 4
namespace roles but we used to have just 2 netns pointer arguments,
interpreted differently based on context.
- Use sysfs_break_active_protection() instead of trylock to avoid
deadlocks between unregistering objects and sysfs access.
- Add a new sysctl and sockopt for capping max retransmit timeout in
TCP.
- Support masking port and DSCP in routing rule matches.
- Support dumping IPv4 multicast addresses with RTM_GETMULTICAST.
- Support specifying at what time packet should be sent on AF_XDP
sockets.
- Expose TCP ULP diagnostic info (for TLS and MPTCP) to non-admin
users.
- Add Netlink YAML spec for WiFi (nl80211) and conntrack.
- Introduce EXPORT_IPV6_MOD() and EXPORT_IPV6_MOD_GPL() for symbols
which only need to be exported when IPv6 support is built as a
module.
- Age FDB entries based on Rx not Tx traffic in VxLAN, similar to
normal bridging.
- Allow users to specify source port range for GENEVE tunnels.
- netconsole: allow attaching kernel release, CPU ID and task name to
messages as metadata
Driver API:
- Continue rework / fixing of Energy Efficient Ethernet (EEE) across
the SW layers. Delegate the responsibilities to phylink where
possible. Improve its handling in phylib.
- Support symmetric OR-XOR RSS hashing algorithm.
- Support tracking and preserving IRQ affinity by NAPI itself.
- Support loopback mode speed selection for interface selftests.
Device drivers:
- Remove the IBM LCS driver for s390
- Remove the sb1000 cable modem driver
- Add support for SFP module access over SMBus
- Add MCTP transport driver for MCTP-over-USB
- Enable XDP metadata support in multiple drivers
- Ethernet high-speed NICs:
- Broadcom (bnxt):
- add PCIe TLP Processing Hints (TPH) support for new AMD
platforms
- support dumping RoCE queue state for debug
- opt into instance locking
- Intel (100G, ice, idpf):
- ice: rework MSI-X IRQ management and distribution
- ice: support for E830 devices
- iavf: add support for Rx timestamping
- iavf: opt into instance locking
- nVidia/Mellanox:
- mlx4: use page pool memory allocator for Rx
- mlx5: support for one PTP device per hardware clock
- mlx5: support for 200Gbps per-lane link modes
- mlx5: move IPSec policy check after decryption
- AMD/Solarflare:
- support FW flashing via devlink
- Cisco (enic):
- use page pool memory allocator for Rx
- enable 32, 64 byte CQEs
- get max rx/tx ring size from the device
- Meta (fbnic):
- support flow steering and RSS configuration
- report queue stats
- support TCP segmentation
- support IRQ coalescing
- support ring size configuration
- Marvell/Cavium:
- support AF_XDP
- Wangxun:
- support for PTP clock and timestamping
- Huawei (hibmcge):
- checksum offload
- add more statistics
- Ethernet virtual:
- VirtIO net:
- aggressively suppress Tx completions, improve perf by 96%
with 1 CPU and 55% with 2 CPUs
- expose NAPI to IRQ mapping and persist NAPI settings
- Google (gve):
- support XDP in DQO RDA Queue Format
- opt into instance locking
- Microsoft vNIC:
- support BIG TCP
- Ethernet NICs consumer, and embedded:
- Synopsys (stmmac):
- cleanup Tx and Tx clock setting and other link-focused
cleanups
- enable SGMII and 2500BASEX mode switching for Intel platforms
- support Sophgo SG2044
- Broadcom switches (b53):
- support for BCM53101
- TI:
- iep: add perout configuration support
- icssg: support XDP
- Cadence (macb):
- implement BQL
- Xilinx (axinet):
- support dynamic IRQ moderation and changing coalescing at
runtime
- implement BQL
- report standard stats
- MediaTek:
- support phylink managed EEE
- Intel:
- igc: don't restart the interface on every XDP program change
- RealTek (r8169):
- support reading registers of internal PHYs directly
- increase max jumbo packet size on RTL8125/RTL8126
- Airoha:
- support for RISC-V NPU packet processing unit
- enable scatter-gather and support MTU up to 9kB
- Tehuti (tn40xx):
- support cards with TN4010 MAC and an Aquantia AQR105 PHY
- Ethernet PHYs:
- support for TJA1102S, TJA1121
- dp83tg720: add randomized polling intervals for link detection
- dp83822: support changing the transmit amplitude voltage
- support for LEDs on 88q2xxx
- CAN:
- canxl: support Remote Request Substitution bit access
- flexcan: add S32G2/S32G3 SoC
- WiFi:
- remove cooked monitor support
- strict mode for better AP testing
- basic EPCS support
- OMI RX bandwidth reduction support
- batman-adv: add support for jumbo frames
- WiFi drivers:
- RealTek (rtw88):
- support RTL8814AE and RTL8814AU
- RealTek (rtw89):
- switch using wiphy_lock and wiphy_work
- add BB context to manipulate two PHY as preparation of MLO
- improve BT-coexistence mechanism to play A2DP smoothly
- Intel (iwlwifi):
- add new iwlmld sub-driver for latest HW/FW combinations
- MediaTek (mt76):
- preparation for mt7996 Multi-Link Operation (MLO) support
- Qualcomm/Atheros (ath12k):
- continued work on MLO
- Silabs (wfx):
- Wake-on-WLAN support
- Bluetooth:
- add support for skb TX SND/COMPLETION timestamping
- hci_core: enable buffer flow control for SCO/eSCO
- coredump: log devcd dumps into the monitor
- Bluetooth drivers:
- intel: add support to configure TX power
- nxp: handle bootloader error during cmd5 and cmd7"
* tag 'net-next-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1681 commits)
unix: fix up for "apparmor: add fine grained af_unix mediation"
mctp: Fix incorrect tx flow invalidation condition in mctp-i2c
net: usb: asix: ax88772: Increase phy_name size
net: phy: Introduce PHY_ID_SIZE — minimum size for PHY ID string
net: libwx: fix Tx L4 checksum
net: libwx: fix Tx descriptor content for some tunnel packets
atm: Fix NULL pointer dereference
net: tn40xx: add pci-id of the aqr105-based Tehuti TN4010 cards
net: tn40xx: prepare tn40xx driver to find phy of the TN9510 card
net: tn40xx: create swnode for mdio and aqr105 phy and add to mdiobus
net: phy: aquantia: add essential functions to aqr105 driver
net: phy: aquantia: search for firmware-name in fwnode
net: phy: aquantia: add probe function to aqr105 for firmware loading
net: phy: Add swnode support to mdiobus_scan
gve: add XDP DROP and PASS support for DQ
gve: update XDP allocation path support RX buffer posting
gve: merge packet buffer size fields
gve: update GQ RX to use buf_size
gve: introduce config-based allocation for XDP
gve: remove xdp_xsk_done and xdp_xsk_wakeup statistics
...
|
||
|
Linus Torvalds
|
2e3fcbcc3b |
SCSI misc on 20250326
Updates to the usual drivers (scsi_debug, ufs, lpfc, st, fnic, mpi3mr, mpt3sas) and the removal of cxlflash. The only non-trivial core change is an addition to unit attention handling to recognize UAs for power on/reset and new media so the tape driver can use it. Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com> -----BEGIN PGP SIGNATURE----- iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCZ+RQ2yYcamFtZXMuYm90 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishe6DAQCdW/21 S1Y6BDlJLQfpWChGv6GIzanC+5sMfylw4d6ULgEA8upOE5L3fC29IY958jXig0o1 uLjxylwYEfVLDf8gwJ0= =mkM+ -----END PGP SIGNATURE----- Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI updates from James Bottomley: "Updates to the usual drivers (scsi_debug, ufs, lpfc, st, fnic, mpi3mr, mpt3sas) and the removal of cxlflash. The only non-trivial core change is an addition to unit attention handling to recognize UAs for power on/reset and new media so the tape driver can use it" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (107 commits) scsi: st: Tighten the page format heuristics with MODE SELECT scsi: st: ERASE does not change tape location scsi: st: Fix array overflow in st_setup() scsi: target: tcm_loop: Fix wrong abort tag scsi: lpfc: Restore clearing of NLP_UNREG_INP in ndlp->nlp_flag scsi: hisi_sas: Fixed failure to issue vendor specific commands scsi: fnic: Remove unnecessary NUL-terminations scsi: fnic: Remove redundant flush_workqueue() calls scsi: core: Use a switch statement when attaching VPD pages scsi: ufs: renesas: Add initialization code for R-Car S4-8 ES1.2 scsi: ufs: renesas: Add reusable functions scsi: ufs: renesas: Refactor 0x10ad/0x10af PHY settings scsi: ufs: renesas: Remove register control helper function scsi: ufs: renesas: Add register read to remove save/set/restore scsi: ufs: renesas: Replace init data by init code scsi: ufs: dt-bindings: renesas,ufs: Add calibration data scsi: mpi3mr: Task Abort EH Support scsi: storvsc: Don't report the host packet status as the hv status scsi: isci: Make most module parameters static scsi: megaraid_sas: Make most module parameters static ... |
||
|
Linus Torvalds
|
2a2274e90a |
pmdomain core:
- Add dev_pm_genpd_rpm_always_on() to support more fine-grained PM pmdomain providers: - arm: Remove redundant state verification for the SCMI PM domain - bcm: Add system-wakeup support for bcm2835 via GENPD_FLAG_ACTIVE_WAKEUP - rockchip: Add support for regulators - rockchip: Use SMC call to properly inform firmware - sunxi: Add V853 ppu support - thead: Add support for RISC-V TH1520 power-domains firmware: - Add support for the AON firmware protocol for RISC-V THEAD cpuidle-psci: - Update section in MAINTAINERS for cpuidle-psci - Add trace support for PSCI domain-idlestates -----BEGIN PGP SIGNATURE----- iQJLBAABCgA1FiEEugLDXPmKSktSkQsV/iaEJXNYjCkFAmfimQ8XHHVsZi5oYW5z c29uQGxpbmFyby5vcmcACgkQ/iaEJXNYjCmp5A//QuqG0PiwrDyR/qOgOaYXHLe3 lYohfHtLyKVO0qAxhhiRbUZQrK4yitkRUJoXHcJuIqqXXjiM3tKu5Vp5loqVpqZi Q8nj6gEIUA1FQjY0h8VTS+NWXA5xbsqgayzw2U6BAfKHQwsvcMXn/hT5v8d0Q2WG UVNb+Xz25q6qzZPbhR/wfJ8kvFkGjV1GtIG3PPwA+C31jFjdcZhU+Rlwtgu+WDZE yofA/pkw5jdDkODTyysYhHKpZlnX+V1yUqs2xym27M2xmbCDpsn9IM45omuFCdnh 7dyKtG55XLd9wpAtO2DVvUWW0bhtr/zfDpWvDQdevQLjwrIdw5wdg53SE3NpNR7/ cCWLM7OFaTJDuuK/upuT75ZKaFqEu5QV9+Na5skQhL0Tl4V9A0nNRPLQXJItGZWv XNfV9OxljYK8c+5fEEEB+pBymZ2LeRvw2+P3DIMSgYNwdZMudmNRWsQe2SjbC4jI G9XzpXw6YaIUNmI8fGGZ4U4CqMg0bOjY7zlQL2VMTe3+JJGdpCRmONT8EV/LH3PQ 2V4dSjwoWH0lmQLo2trNDuIWj6AdGNObSL3LXSKPo6ORXg24dWdI9Dbc7PpPvOb0 CZ9AV3SezfmkSyODI5G5ULUeH1hy4h6jn9py2SoVRS3SQyznh0HZj9kBlyuVgfmL mArHaUCmVHPKhAvLc1g= =Wihe -----END PGP SIGNATURE----- Merge tag 'pmdomain-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm Pull pmdomain updates from Ulf Hansson: "pmdomain core: - Add dev_pm_genpd_rpm_always_on() to support more fine-grained PM pmdomain providers: - arm: Remove redundant state verification for the SCMI PM domain - bcm: Add system-wakeup support for bcm2835 via GENPD_FLAG_ACTIVE_WAKEUP - rockchip: Add support for regulators - rockchip: Use SMC call to properly inform firmware - sunxi: Add V853 ppu support - thead: Add support for RISC-V TH1520 power-domains firmware: - Add support for the AON firmware protocol for RISC-V THEAD cpuidle-psci: - Update section in MAINTAINERS for cpuidle-psci - Add trace support for PSCI domain-idlestates" * tag 'pmdomain-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm: (29 commits) firmware: thead: add CONFIG_MAILBOX dependency firmware: thead,th1520-aon: Fix use after free in th1520_aon_init() pmdomain: arm: scmi_pm_domain: Remove redundant state verification pmdomain: thead: fix TH1520_AON_PROTOCOL dependency pmdomain: thead: Add power-domain driver for TH1520 dt-bindings: power: Add TH1520 SoC power domains firmware: thead: Add AON firmware protocol driver dt-bindings: firmware: thead,th1520: Add support for firmware node pmdomain: rockchip: add regulator dependency pmdomain: rockchip: add regulator support pmdomain: rockchip: fix rockchip_pd_power error handling pmdomain: rockchip: reduce indentation in rockchip_pd_power pmdomain: rockchip: forward rockchip_do_pmu_set_power_domain errors pmdomain: rockchip: cleanup mutex handling in rockchip_pd_power dt-bindings: power: rockchip: add regulator support pmdomain: rockchip: Fix build error pmdomain: imx: gpcv2: use proper helper for property detection MAINTAINERS: Update section for cpuidle-psci pmdomain: rockchip: Check if SMC could be handled by TA cpuidle: psci: Add trace for PSCI domain idle ... |
||
|
Linus Torvalds
|
32b22538be |
Scheduler updates for v6.15:
[ Merge note, these two commits are identical:
-
|
||
|
Linus Torvalds
|
3ba7dfb8da |
RCU pull request for v6.15
This pull request contains the following branches:
docs.2025.02.04a:
- Add broken-timing possibility to stallwarn.rst.
- Improve discussion of this_cpu_ptr(), add raw_cpu_ptr().
- Document self-propagating callbacks.
- Point call_srcu() to call_rcu() for detailed memory ordering.
- Add CONFIG_RCU_LAZY delays to call_rcu() kernel-doc header.
- Clarify RCU_LAZY and RCU_LAZY_DEFAULT_OFF help text.
- Remove references to old grace-period-wait primitives.
srcu.2025.02.05a:
- Introduce srcu_read_{un,}lock_fast(), which is similar to
srcu_read_{un,}lock_lite(): avoid smp_mb()s in lock and unlock at the
cost of calling synchronize_rcu() in synchronize_srcu(). Moreover, by
returning the percpu offset of the counter at srcu_read_lock_fast()
time, srcu_read_unlock_fast() can save extra pointer dereferencing,
which makes it faster than srcu_read_{un,}lock_lite().
srcu_read_{un,}lock_fast() are intended to replace
rcu_read_{un,}lock_trace() if possible.
torture.2025.02.05a:
- Add get_torture_init_jiffies() to return the start time of the test.
- Add a test_boost_holdoff module parameter to allow delaying boosting
tests when building rcutorture as built-in.
- Add grace period sequence number logging at the beginning and end of
failure/close-call results.
- Switch to hexadecimal for the expedited grace period sequence number
in the rcu_exp_grace_period trace point.
- Make cur_ops->format_gp_seqs take buffer length.
- Move RCU_TORTURE_TEST_{CHK_RDR_STATE,LOG_CPU} to bool.
- Complain when invalid SRCU reader_flavor is specified.
- Add FORCE_NEED_SRCU_NMI_SAFE Kconfig for testing, which forces SRCU
uses atomics even when percpu ops are NMI safe, and use the Kconfig
for SRCU lockdep testing.
misc.2025.03.04a:
- Split rcu_report_exp_cpu_mult() mask parameter and use for tracing.
- Remove READ_ONCE() for rdp->gpwrap access in __note_gp_changes().
- Fix get_state_synchronize_rcu_full() GP-start detection.
- Move RCU Tasks self-tests to core_initcall().
- Print segment lengths in show_rcu_nocb_gp_state().
- Make RCU watch ct_kernel_exit_state() warning.
- Flush console log from kernel_power_off().
- rcutorture: Allow a negative value for nfakewriters.
- rcu: Update TREE05.boot to test normal synchronize_rcu().
- rcu: Use _full() API to debug synchronize_rcu().
lazypreempt.2025.03.04a: Make RCU handle PREEMPT_LAZY better:
- Fix header guard for rcu_all_qs().
- rcu: Rename PREEMPT_AUTO to PREEMPT_LAZY.
- Update __cond_resched comment about RCU quiescent states.
- Handle unstable rdp in rcu_read_unlock_strict().
- Handle quiescent states for PREEMPT_RCU=n, PREEMPT_COUNT=y.
- osnoise: Provide quiescent states.
- Adjust rcutorture with possible PREEMPT_RCU=n && PREEMPT_COUNT=y
combination.
- Limit PREEMPT_RCU configurations.
- Make rcutorture senario TREE07 and senario TREE10 use PREEMPT_LAZY=y.
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Merge tag 'rcu-next-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux
Pull RCU updates from Boqun Feng:
"Documentation:
- Add broken-timing possibility to stallwarn.rst
- Improve discussion of this_cpu_ptr(), add raw_cpu_ptr()
- Document self-propagating callbacks
- Point call_srcu() to call_rcu() for detailed memory ordering
- Add CONFIG_RCU_LAZY delays to call_rcu() kernel-doc header
- Clarify RCU_LAZY and RCU_LAZY_DEFAULT_OFF help text
- Remove references to old grace-period-wait primitives
srcu:
- Introduce srcu_read_{un,}lock_fast(), which is similar to
srcu_read_{un,}lock_lite(): avoid smp_mb()s in lock and unlock
at the cost of calling synchronize_rcu() in synchronize_srcu()
Moreover, by returning the percpu offset of the counter at
srcu_read_lock_fast() time, srcu_read_unlock_fast() can avoid
extra pointer dereferencing, which makes it faster than
srcu_read_{un,}lock_lite()
srcu_read_{un,}lock_fast() are intended to replace
rcu_read_{un,}lock_trace() if possible
RCU torture:
- Add get_torture_init_jiffies() to return the start time of the test
- Add a test_boost_holdoff module parameter to allow delaying
boosting tests when building rcutorture as built-in
- Add grace period sequence number logging at the beginning and end
of failure/close-call results
- Switch to hexadecimal for the expedited grace period sequence
number in the rcu_exp_grace_period trace point
- Make cur_ops->format_gp_seqs take buffer length
- Move RCU_TORTURE_TEST_{CHK_RDR_STATE,LOG_CPU} to bool
- Complain when invalid SRCU reader_flavor is specified
- Add FORCE_NEED_SRCU_NMI_SAFE Kconfig for testing, which forces SRCU
uses atomics even when percpu ops are NMI safe, and use the Kconfig
for SRCU lockdep testing
Misc:
- Split rcu_report_exp_cpu_mult() mask parameter and use for tracing
- Remove READ_ONCE() for rdp->gpwrap access in __note_gp_changes()
- Fix get_state_synchronize_rcu_full() GP-start detection
- Move RCU Tasks self-tests to core_initcall()
- Print segment lengths in show_rcu_nocb_gp_state()
- Make RCU watch ct_kernel_exit_state() warning
- Flush console log from kernel_power_off()
- rcutorture: Allow a negative value for nfakewriters
- rcu: Update TREE05.boot to test normal synchronize_rcu()
- rcu: Use _full() API to debug synchronize_rcu()
Make RCU handle PREEMPT_LAZY better:
- Fix header guard for rcu_all_qs()
- rcu: Rename PREEMPT_AUTO to PREEMPT_LAZY
- Update __cond_resched comment about RCU quiescent states
- Handle unstable rdp in rcu_read_unlock_strict()
- Handle quiescent states for PREEMPT_RCU=n, PREEMPT_COUNT=y
- osnoise: Provide quiescent states
- Adjust rcutorture with possible PREEMPT_RCU=n && PREEMPT_COUNT=y
combination
- Limit PREEMPT_RCU configurations
- Make rcutorture senario TREE07 and senario TREE10 use
PREEMPT_LAZY=y"
* tag 'rcu-next-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux: (59 commits)
rcutorture: Make scenario TREE07 build CONFIG_PREEMPT_LAZY=y
rcutorture: Make scenario TREE10 build CONFIG_PREEMPT_LAZY=y
rcu: limit PREEMPT_RCU configurations
rcutorture: Update ->extendables check for lazy preemption
rcutorture: Update rcutorture_one_extend_check() for lazy preemption
osnoise: provide quiescent states
rcu: Use _full() API to debug synchronize_rcu()
rcu: Update TREE05.boot to test normal synchronize_rcu()
rcutorture: Allow a negative value for nfakewriters
Flush console log from kernel_power_off()
context_tracking: Make RCU watch ct_kernel_exit_state() warning
rcu/nocb: Print segment lengths in show_rcu_nocb_gp_state()
rcu-tasks: Move RCU Tasks self-tests to core_initcall()
rcu: Fix get_state_synchronize_rcu_full() GP-start detection
torture: Make SRCU lockdep testing use srcu_read_lock_nmisafe()
srcu: Add FORCE_NEED_SRCU_NMI_SAFE Kconfig for testing
rcutorture: Complain when invalid SRCU reader_flavor is specified
rcutorture: Move RCU_TORTURE_TEST_{CHK_RDR_STATE,LOG_CPU} to bool
rcutorture: Make cur_ops->format_gp_seqs take buffer length
rcutorture: Add ftrace-compatible timestamp to GP# failure/close-call output
...
|
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Linus Torvalds
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bcb044256d |
sched_ext: Changes for v6.15
- Add mechanism to count and report internal events. This significantly improves visibility on subtle corner conditions. - The default idle CPU selection logic is revamped and improved in multiple ways including being made topology aware. - sched_ext was disabling ttwu_queue for simplicity, which can be costly when hardware topology is more complex. Implement SCX_OPS_ALLOWED_QUEUED_WAKEUP so that BPF schedulers can selectively enable ttwu_queue. - tools/sched_ext updates to improve compatibility among others. - Other misc updates and fixes. - sched_ext/for-6.14-fixes were pulled a few times to receive prerequisite fixes and resolve conflicts. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCZ999Sg4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGf/KAQCoMTVOBpQT9gCaCKDOmrVJTwi6boEoV5WnGZzw PDr0vwEAq36iz4no6Y5THcN/DCx+52IiS0zuhPy3rBZVo11TMgU= =iQ+A -----END PGP SIGNATURE----- Merge tag 'sched_ext-for-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext Pull sched_ext updates from Tejun Heo: - Add mechanism to count and report internal events. This significantly improves visibility on subtle corner conditions. - The default idle CPU selection logic is revamped and improved in multiple ways including being made topology aware. - sched_ext was disabling ttwu_queue for simplicity, which can be costly when hardware topology is more complex. Implement SCX_OPS_ALLOWED_QUEUED_WAKEUP so that BPF schedulers can selectively enable ttwu_queue. - tools/sched_ext updates to improve compatibility among others. - Other misc updates and fixes. - sched_ext/for-6.14-fixes were pulled a few times to receive prerequisite fixes and resolve conflicts. * tag 'sched_ext-for-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext: (42 commits) sched_ext: idle: Refactor scx_select_cpu_dfl() sched_ext: idle: Honor idle flags in the built-in idle selection policy sched_ext: Skip per-CPU tasks in scx_bpf_reenqueue_local() sched_ext: Add trace point to track sched_ext core events sched_ext: Change the event type from u64 to s64 sched_ext: Documentation: add task lifecycle summary tools/sched_ext: Provide a compatible helper for scx_bpf_events() selftests/sched_ext: Add NUMA-aware scheduler test tools/sched_ext: Provide consistent access to scx flags sched_ext: idle: Fix scx_bpf_pick_any_cpu_node() behavior sched_ext: idle: Introduce scx_bpf_nr_node_ids() sched_ext: idle: Introduce node-aware idle cpu kfunc helpers sched_ext: idle: Per-node idle cpumasks sched_ext: idle: Introduce SCX_OPS_BUILTIN_IDLE_PER_NODE sched_ext: idle: Make idle static keys private sched/topology: Introduce for_each_node_numadist() iterator mm/numa: Introduce nearest_node_nodemask() nodemask: numa: reorganize inclusion path nodemask: add nodes_copy() tools/sched_ext: Sync with scx repo ... |
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Linus Torvalds
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05b00ffd7a |
slab updates for 6.15
-----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEe7vIQRWZI0iWSE3xu+CwddJFiJoFAmfb4r0ACgkQu+CwddJF iJq6NQf/WNEQAoRY1DEeQiBAvixTYry0j/w1dumpValvt/lybccMwwhWho5i17/o 2J4nif5L5O6D+jZWyz76fx2bcn7GjhteiKtzuVI0mSdDXyYLBLVGa9dMrE1/0kxy 51HnldCLfNmC3qp0pG2E7j2chsxDbTwz4ZPiEAW9kzpvgfEWmfydejzv5+ROFQm7 gH3vRJ7H5enxp2a52DovBN1JllYK9uxMTM3Pq1L37n9Hm1zIR+swbI/3VhklRN4C nrO6my6GU2+bMQTvPKwuHBIHUH7yS6Z411wCotPmRO0jfLMq/UY5lthgWpqvsC+o XtgULoikQbcd8kts9g71bHSEinwlGw== =whkW -----END PGP SIGNATURE----- Merge tag 'slab-for-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab Pull slab updates from Vlastimil Babka: - Move the TINY_RCU kvfree_rcu() implementation from RCU to SLAB subsystem and cleanup its integration (Vlastimil Babka) Following the move of the TREE_RCU batching kvfree_rcu() implementation in 6.14, move also the simpler TINY_RCU variant. Refactor the #ifdef guards so that the simple implementation is also used with SLUB_TINY. Remove the need for RCU to recognize fake callback function pointers (__is_kvfree_rcu_offset()) when handling call_rcu() by implementing a callback that calculates the object's address from the embedded rcu_head address without knowing its offset. - Improve kmalloc cache randomization in kvmalloc (GONG Ruiqi) Due to an extra layer of function call, all kvmalloc() allocations used the same set of random caches. Thanks to moving the kvmalloc() implementation to slub.c, this is improved and randomization now works for kvmalloc. - Various improvements to debugging, testing and other cleanups (Hyesoo Yu, Lilith Gkini, Uladzislau Rezki, Matthew Wilcox, Kevin Brodsky, Ye Bin) * tag 'slab-for-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab: slub: Handle freelist cycle in on_freelist() mm/slab: call kmalloc_noprof() unconditionally in kmalloc_array_noprof() slab: Mark large folios for debugging purposes kunit, slub: Add test_kfree_rcu_wq_destroy use case mm, slab: cleanup slab_bug() parameters mm: slub: call WARN() when detecting a slab corruption mm: slub: Print the broken data before restoring them slab: Achieve better kmalloc caches randomization in kvmalloc slab: Adjust placement of __kvmalloc_node_noprof mm/slab: simplify SLAB_* flag handling slab: don't batch kvfree_rcu() with SLUB_TINY rcu, slab: use a regular callback function for kvfree_rcu rcu: remove trace_rcu_kvfree_callback slab, rcu: move TINY_RCU variant of kvfree_rcu() to SLAB |
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Gabriele Monaco
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26f80681a0 |
sched: Add sched tracepoints for RV task model
Add the following tracepoints:
* sched_entry(bool preempt, ip)
Called while entering __schedule
* sched_exit(bool is_switch, ip)
Called while exiting __schedule
* sched_set_state(task, curr_state, state)
Called when a task changes its state (to and from running)
These tracepoints are useful to describe the Linux task model and are
adapted from the patches by Daniel Bristot de Oliveira
(https://bristot.me/linux-task-model/).
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Juri Lelli <juri.lelli@redhat.com>
Link: https://lore.kernel.org/20250305140406.350227-2-gmonaco@redhat.com
Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
|