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linux-loongson/include/trace/events/fs_dax.h
Lorenzo Stoakes 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>
2025-07-09 22:42:13 -07:00

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/* SPDX-License-Identifier: GPL-2.0 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM fs_dax
#if !defined(_TRACE_FS_DAX_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_FS_DAX_H
#include <linux/tracepoint.h>
DECLARE_EVENT_CLASS(dax_pmd_fault_class,
TP_PROTO(struct inode *inode, struct vm_fault *vmf,
pgoff_t max_pgoff, int result),
TP_ARGS(inode, vmf, max_pgoff, result),
TP_STRUCT__entry(
__field(unsigned long, ino)
__field(unsigned long, vm_start)
__field(unsigned long, vm_end)
__field(vm_flags_t, vm_flags)
__field(unsigned long, address)
__field(pgoff_t, pgoff)
__field(pgoff_t, max_pgoff)
__field(dev_t, dev)
__field(unsigned int, flags)
__field(int, result)
),
TP_fast_assign(
__entry->dev = inode->i_sb->s_dev;
__entry->ino = inode->i_ino;
__entry->vm_start = vmf->vma->vm_start;
__entry->vm_end = vmf->vma->vm_end;
__entry->vm_flags = vmf->vma->vm_flags;
__entry->address = vmf->address;
__entry->flags = vmf->flags;
__entry->pgoff = vmf->pgoff;
__entry->max_pgoff = max_pgoff;
__entry->result = result;
),
TP_printk("dev %d:%d ino %#lx %s %s address %#lx vm_start "
"%#lx vm_end %#lx pgoff %#lx max_pgoff %#lx %s",
MAJOR(__entry->dev),
MINOR(__entry->dev),
__entry->ino,
__entry->vm_flags & VM_SHARED ? "shared" : "private",
__print_flags(__entry->flags, "|", FAULT_FLAG_TRACE),
__entry->address,
__entry->vm_start,
__entry->vm_end,
__entry->pgoff,
__entry->max_pgoff,
__print_flags(__entry->result, "|", VM_FAULT_RESULT_TRACE)
)
)
#define DEFINE_PMD_FAULT_EVENT(name) \
DEFINE_EVENT(dax_pmd_fault_class, name, \
TP_PROTO(struct inode *inode, struct vm_fault *vmf, \
pgoff_t max_pgoff, int result), \
TP_ARGS(inode, vmf, max_pgoff, result))
DEFINE_PMD_FAULT_EVENT(dax_pmd_fault);
DEFINE_PMD_FAULT_EVENT(dax_pmd_fault_done);
DECLARE_EVENT_CLASS(dax_pmd_load_hole_class,
TP_PROTO(struct inode *inode, struct vm_fault *vmf,
struct folio *zero_folio,
void *radix_entry),
TP_ARGS(inode, vmf, zero_folio, radix_entry),
TP_STRUCT__entry(
__field(unsigned long, ino)
__field(vm_flags_t, vm_flags)
__field(unsigned long, address)
__field(struct folio *, zero_folio)
__field(void *, radix_entry)
__field(dev_t, dev)
),
TP_fast_assign(
__entry->dev = inode->i_sb->s_dev;
__entry->ino = inode->i_ino;
__entry->vm_flags = vmf->vma->vm_flags;
__entry->address = vmf->address;
__entry->zero_folio = zero_folio;
__entry->radix_entry = radix_entry;
),
TP_printk("dev %d:%d ino %#lx %s address %#lx zero_folio %p "
"radix_entry %#lx",
MAJOR(__entry->dev),
MINOR(__entry->dev),
__entry->ino,
__entry->vm_flags & VM_SHARED ? "shared" : "private",
__entry->address,
__entry->zero_folio,
(unsigned long)__entry->radix_entry
)
)
#define DEFINE_PMD_LOAD_HOLE_EVENT(name) \
DEFINE_EVENT(dax_pmd_load_hole_class, name, \
TP_PROTO(struct inode *inode, struct vm_fault *vmf, \
struct folio *zero_folio, void *radix_entry), \
TP_ARGS(inode, vmf, zero_folio, radix_entry))
DEFINE_PMD_LOAD_HOLE_EVENT(dax_pmd_load_hole);
DEFINE_PMD_LOAD_HOLE_EVENT(dax_pmd_load_hole_fallback);
DECLARE_EVENT_CLASS(dax_pte_fault_class,
TP_PROTO(struct inode *inode, struct vm_fault *vmf, int result),
TP_ARGS(inode, vmf, result),
TP_STRUCT__entry(
__field(unsigned long, ino)
__field(vm_flags_t, vm_flags)
__field(unsigned long, address)
__field(pgoff_t, pgoff)
__field(dev_t, dev)
__field(unsigned int, flags)
__field(int, result)
),
TP_fast_assign(
__entry->dev = inode->i_sb->s_dev;
__entry->ino = inode->i_ino;
__entry->vm_flags = vmf->vma->vm_flags;
__entry->address = vmf->address;
__entry->flags = vmf->flags;
__entry->pgoff = vmf->pgoff;
__entry->result = result;
),
TP_printk("dev %d:%d ino %#lx %s %s address %#lx pgoff %#lx %s",
MAJOR(__entry->dev),
MINOR(__entry->dev),
__entry->ino,
__entry->vm_flags & VM_SHARED ? "shared" : "private",
__print_flags(__entry->flags, "|", FAULT_FLAG_TRACE),
__entry->address,
__entry->pgoff,
__print_flags(__entry->result, "|", VM_FAULT_RESULT_TRACE)
)
)
#define DEFINE_PTE_FAULT_EVENT(name) \
DEFINE_EVENT(dax_pte_fault_class, name, \
TP_PROTO(struct inode *inode, struct vm_fault *vmf, int result), \
TP_ARGS(inode, vmf, result))
DEFINE_PTE_FAULT_EVENT(dax_pte_fault);
DEFINE_PTE_FAULT_EVENT(dax_pte_fault_done);
DEFINE_PTE_FAULT_EVENT(dax_load_hole);
DEFINE_PTE_FAULT_EVENT(dax_insert_pfn_mkwrite_no_entry);
DEFINE_PTE_FAULT_EVENT(dax_insert_pfn_mkwrite);
DECLARE_EVENT_CLASS(dax_writeback_range_class,
TP_PROTO(struct inode *inode, pgoff_t start_index, pgoff_t end_index),
TP_ARGS(inode, start_index, end_index),
TP_STRUCT__entry(
__field(unsigned long, ino)
__field(pgoff_t, start_index)
__field(pgoff_t, end_index)
__field(dev_t, dev)
),
TP_fast_assign(
__entry->dev = inode->i_sb->s_dev;
__entry->ino = inode->i_ino;
__entry->start_index = start_index;
__entry->end_index = end_index;
),
TP_printk("dev %d:%d ino %#lx pgoff %#lx-%#lx",
MAJOR(__entry->dev),
MINOR(__entry->dev),
__entry->ino,
__entry->start_index,
__entry->end_index
)
)
#define DEFINE_WRITEBACK_RANGE_EVENT(name) \
DEFINE_EVENT(dax_writeback_range_class, name, \
TP_PROTO(struct inode *inode, pgoff_t start_index, pgoff_t end_index),\
TP_ARGS(inode, start_index, end_index))
DEFINE_WRITEBACK_RANGE_EVENT(dax_writeback_range);
DEFINE_WRITEBACK_RANGE_EVENT(dax_writeback_range_done);
TRACE_EVENT(dax_writeback_one,
TP_PROTO(struct inode *inode, pgoff_t pgoff, pgoff_t pglen),
TP_ARGS(inode, pgoff, pglen),
TP_STRUCT__entry(
__field(unsigned long, ino)
__field(pgoff_t, pgoff)
__field(pgoff_t, pglen)
__field(dev_t, dev)
),
TP_fast_assign(
__entry->dev = inode->i_sb->s_dev;
__entry->ino = inode->i_ino;
__entry->pgoff = pgoff;
__entry->pglen = pglen;
),
TP_printk("dev %d:%d ino %#lx pgoff %#lx pglen %#lx",
MAJOR(__entry->dev),
MINOR(__entry->dev),
__entry->ino,
__entry->pgoff,
__entry->pglen
)
)
#endif /* _TRACE_FS_DAX_H */
/* This part must be outside protection */
#include <trace/define_trace.h>
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