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ec28e02ca5
Protection of __nfs4_state_shutdown() with nfs4_lock_state() looks redundant. This function is called by the last NFSd thread on it's exit and state lock protects actually two functions (del_recall_lru is protected by recall_lock): 1) nfsd4_client_tracking_exit 2) __nfs4_state_shutdown_net "nfsd4_client_tracking_exit" doesn't require state lock protection, because it's state can be modified only by tracker callbacks. Here a re they: 1) create: is called only from nfsd4_proc_compound. 2) remove: is called from either nfsd4_proc_compound or nfs4_laundromat. 3) check: is called only from nfsd4_proc_compound. 4) grace_done; called only from nfs4_laundromat. nfsd4_proc_compound is called onll by NFSd kthread, which is exiting right now. nfs4_laundromat is called by laundry_wq. But laundromat_work was canceled already. "__nfs4_state_shutdown_net" also doesn't require state lock protection, because all NFSd kthreads are dead, and no race can happen with NFSd start, because "nfsd_up" flag is still set. Moreover, all Nfsd shutdown is protected with global nfsd_mutex. Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com> |
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| .. | ||
| 9p | ||
| adfs | ||
| affs | ||
| afs | ||
| autofs4 | ||
| befs | ||
| bfs | ||
| btrfs | ||
| cachefiles | ||
| ceph | ||
| cifs | ||
| coda | ||
| configfs | ||
| cramfs | ||
| debugfs | ||
| devpts | ||
| dlm | ||
| ecryptfs | ||
| efs | ||
| exofs | ||
| exportfs | ||
| ext2 | ||
| ext3 | ||
| ext4 | ||
| fat | ||
| freevxfs | ||
| fscache | ||
| fuse | ||
| gfs2 | ||
| hfs | ||
| hfsplus | ||
| hostfs | ||
| hpfs | ||
| hppfs | ||
| hugetlbfs | ||
| isofs | ||
| jbd | ||
| jbd2 | ||
| jffs2 | ||
| jfs | ||
| lockd | ||
| logfs | ||
| minix | ||
| ncpfs | ||
| nfs | ||
| nfs_common | ||
| nfsd | ||
| nilfs2 | ||
| nls | ||
| notify | ||
| ntfs | ||
| ocfs2 | ||
| omfs | ||
| openpromfs | ||
| proc | ||
| pstore | ||
| qnx4 | ||
| qnx6 | ||
| quota | ||
| ramfs | ||
| reiserfs | ||
| romfs | ||
| squashfs | ||
| sysfs | ||
| sysv | ||
| ubifs | ||
| udf | ||
| ufs | ||
| xfs | ||
| aio.c | ||
| anon_inodes.c | ||
| attr.c | ||
| bad_inode.c | ||
| binfmt_aout.c | ||
| binfmt_elf_fdpic.c | ||
| binfmt_elf.c | ||
| binfmt_em86.c | ||
| binfmt_flat.c | ||
| binfmt_misc.c | ||
| binfmt_script.c | ||
| binfmt_som.c | ||
| bio-integrity.c | ||
| bio.c | ||
| block_dev.c | ||
| buffer.c | ||
| char_dev.c | ||
| compat_binfmt_elf.c | ||
| compat_ioctl.c | ||
| compat.c | ||
| coredump.c | ||
| coredump.h | ||
| dcache.c | ||
| dcookies.c | ||
| direct-io.c | ||
| drop_caches.c | ||
| eventfd.c | ||
| eventpoll.c | ||
| exec.c | ||
| fcntl.c | ||
| fhandle.c | ||
| fifo.c | ||
| file_table.c | ||
| file.c | ||
| filesystems.c | ||
| fs_struct.c | ||
| fs-writeback.c | ||
| generic_acl.c | ||
| inode.c | ||
| internal.h | ||
| ioctl.c | ||
| ioprio.c | ||
| Kconfig | ||
| Kconfig.binfmt | ||
| libfs.c | ||
| locks.c | ||
| Makefile | ||
| mbcache.c | ||
| mount.h | ||
| mpage.c | ||
| namei.c | ||
| namespace.c | ||
| no-block.c | ||
| open.c | ||
| pipe.c | ||
| pnode.c | ||
| pnode.h | ||
| posix_acl.c | ||
| proc_namespace.c | ||
| read_write.c | ||
| read_write.h | ||
| readdir.c | ||
| select.c | ||
| seq_file.c | ||
| signalfd.c | ||
| splice.c | ||
| stack.c | ||
| stat.c | ||
| statfs.c | ||
| super.c | ||
| sync.c | ||
| timerfd.c | ||
| utimes.c | ||
| xattr_acl.c | ||
| xattr.c | ||