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15b158b4e6274351fc3cf652cbabc57104efb547
linux/fs
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Alexey Dobriyan 15b158b4e6 proc: spread likely/unlikely a bit 
use_pde() is used at every open/read/write/...  of every random /proc
file.  Negative refcount happens only if PDE is being deleted by module
(read: never).  So it gets "likely".

unuse_pde() gets "unlikely" for the same reason.

close_pdeo() gets unlikely as the completion is filled only if there is a
race between PDE removal and close() (read: never ever).

It even saves code on x86_64 defconfig:

	add/remove: 0/0 grow/shrink: 1/2 up/down: 2/-20 (-18)
	Function                                     old     new   delta
	close_pdeo                                   183     185      +2
	proc_reg_get_unmapped_area                   119     111      -8
	proc_reg_poll                                 85      73     -12

Link: http://lkml.kernel.org/r/20180104175657.GA5204@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-02-06 18:32:43 -08:00
..
9p
fs/*/Kconfig: drop links to 404-compliant http://acl.bestbits.at
2018-01-01 12:45:37 -07:00
adfs
Rename superblock flags (MS_xyz -> SB_xyz)
2017-11-27 13:05:09 -08:00
affs
affs: convert to new i_version API
2018-01-29 06:42:20 -05:00
afs
Merge tag 'iversion-v4.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux
2018-01-29 13:33:53 -08:00
autofs4
Merge branch 'userns-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2018-01-30 14:43:12 -08:00
befs
befs: Define usercopy region in befs_inode_cache slab cache
2018-01-15 12:07:54 -08:00
bfs
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
btrfs
Merge tag 'docs-4.16' of git://git.lwn.net/linux
2018-01-31 19:25:25 -08:00
cachefiles
fs: annotate ->poll() instances
2017-11-27 16:20:05 -05:00
ceph
Merge tag 'docs-4.16' of git://git.lwn.net/linux
2018-01-31 19:25:25 -08:00
cifs
Merge tag 'usercopy-v4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2018-02-03 16:25:42 -08:00
coda
Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-01-30 17:58:07 -08:00
configfs
configfs: make ci_type field, some pointers and function arguments const
2017-10-19 16:15:16 +02:00
cramfs
cramfs: fix MTD dependency
2017-12-17 12:20:58 -08:00
crypto
fscrypt: fix build with pre-4.6 gcc versions
2018-02-01 10:51:18 -05:00
debugfs
fs: annotate ->poll() instances
2017-11-27 16:20:05 -05:00
devpts
devpts: fix error handling in devpts_mntget()
2018-01-31 08:48:37 -08:00
dlm
Merge branch 'work.sock_recvmsg' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-01-30 18:59:03 -08:00
ecryptfs
Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-01-30 17:58:07 -08:00
efivarfs
VFS: Kill off s_options and helpers
2017-07-11 06:09:21 -04:00
efs
Rename superblock flags (MS_xyz -> SB_xyz)
2017-11-27 13:05:09 -08:00
exofs
Merge tag 'usercopy-v4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2018-02-03 16:25:42 -08:00
exportfs
…
ext2
Merge tag 'usercopy-v4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2018-02-03 16:25:42 -08:00
ext4
Merge tag 'fscrypt_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt
2018-02-04 10:43:12 -08:00
f2fs
Merge tag 'fscrypt_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt
2018-02-04 10:43:12 -08:00
fat
fat: convert to new i_version API
2018-01-29 06:42:20 -05:00
freevxfs
vxfs: Define usercopy region in vxfs_inode slab cache
2018-01-15 12:07:57 -08:00
fscache
Merge tag 'afs-next-20171113' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
2017-11-16 11:41:22 -08:00
fuse
Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-01-30 17:58:07 -08:00
gfs2
gfs2: Glock dump performance regression fix
2018-02-01 11:27:11 -07:00
hfs
Rename superblock flags (MS_xyz -> SB_xyz)
2017-11-27 13:05:09 -08:00
hfsplus
fs/*/Kconfig: drop links to 404-compliant http://acl.bestbits.at
2018-01-01 12:45:37 -07:00
hostfs
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
hpfs
hpfs: don't bother with the i_version counter or f_version
2017-12-10 12:58:18 -08:00
hugetlbfs
hugetlb: implement memfd sealing
2018-01-31 17:18:39 -08:00
isofs
Rename superblock flags (MS_xyz -> SB_xyz)
2017-11-27 13:05:09 -08:00
jbd2
jbd2: fix sphinx kernel-doc build warnings
2018-01-10 00:27:29 -05:00
jffs2
Merge tag 'docs-4.16' of git://git.lwn.net/linux
2018-01-31 19:25:25 -08:00
jfs
Merge tag 'usercopy-v4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2018-02-03 16:25:42 -08:00
kernfs
Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-01-30 17:58:07 -08:00
lockd
lockd: Fix server refcounting
2018-01-24 17:33:57 -05:00
minix
Rename superblock flags (MS_xyz -> SB_xyz)
2017-11-27 13:05:09 -08:00
nfs
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-01-31 09:25:20 -08:00
nfs_common
lockd: fix "list_add double add" caused by legacy signal interface
2017-11-27 16:45:11 -05:00
nfsd
Merge tag 'iversion-v4.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux
2018-01-29 13:33:53 -08:00
nilfs2
Rename superblock flags (MS_xyz -> SB_xyz)
2017-11-27 13:05:09 -08:00
nls
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
notify
Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-01-30 17:58:07 -08:00
ntfs
ntfs: remove i_version handling
2018-01-01 10:09:33 -05:00
ocfs2
ocfs2: return error when we attempt to access a dirty bh in jbd2
2018-01-31 17:18:35 -08:00
omfs
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
openpromfs
Rename superblock flags (MS_xyz -> SB_xyz)
2017-11-27 13:05:09 -08:00
orangefs
Merge tag 'usercopy-v4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2018-02-03 16:25:42 -08:00
overlayfs
ovl: check ERR_PTR() return value from ovl_encode_fh()
2018-02-05 09:50:29 +01:00
proc
proc: spread likely/unlikely a bit
2018-02-06 18:32:43 -08:00
pstore
fs: pstore: remove unused hardirq.h
2017-11-28 16:39:09 -08:00
qnx4
Rename superblock flags (MS_xyz -> SB_xyz)
2017-11-27 13:05:09 -08:00
qnx6
Rename superblock flags (MS_xyz -> SB_xyz)
2017-11-27 13:05:09 -08:00
quota
quota: Check for register_shrinker() failure.
2017-11-29 16:46:48 +01:00
ramfs
mm: make pagevec_lookup() update index
2017-09-06 17:27:26 -07:00
reiserfs
fs/*/Kconfig: drop links to 404-compliant http://acl.bestbits.at
2018-01-01 12:45:37 -07:00
romfs
Rename superblock flags (MS_xyz -> SB_xyz)
2017-11-27 13:05:09 -08:00
squashfs
Rename superblock flags (MS_xyz -> SB_xyz)
2017-11-27 13:05:09 -08:00
sysfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk
2018-02-01 13:36:15 -08:00
sysv
Rename superblock flags (MS_xyz -> SB_xyz)
2017-11-27 13:05:09 -08:00
tracefs
VFS: Don't use save/replace_mount_options if not using generic_show_options
2017-07-06 03:31:46 -04:00
ubifs
Merge tag 'fscrypt_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt
2018-02-04 10:43:12 -08:00
udf
Rename superblock flags (MS_xyz -> SB_xyz)
2017-11-27 13:05:09 -08:00
ufs
Merge tag 'usercopy-v4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2018-02-03 16:25:42 -08:00
xfs
Merge tag 'xfs-4.16-merge-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
2018-02-05 13:35:56 -08:00
aio.c
Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-11-17 11:54:55 -08:00
anon_inodes.c
…
attr.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
bad_inode.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
binfmt_aout.c
fs: fix kernel_read prototype
2017-09-04 19:05:15 -04:00
binfmt_elf_fdpic.c
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-11-17 12:54:01 -08:00
binfmt_elf.c
Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
2017-11-16 12:50:35 -08:00
binfmt_em86.c
…
binfmt_flat.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
binfmt_misc.c
fs/binfmt_misc.c: node could be NULL when evicting inode
2017-10-13 16:18:33 -07:00
binfmt_script.c
exec: load_script: kill the onstack interp[BINPRM_BUF_SIZE] array
2017-10-03 17:54:25 -07:00
block_dev.c
Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block
2017-11-14 15:32:19 -08:00
buffer.c
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-01-31 09:25:20 -08:00
char_dev.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
compat_binfmt_elf.c
…
compat_ioctl.c
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-11-17 12:54:01 -08:00
compat.c
…
coredump.c
Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-11-17 11:54:55 -08:00
dax.c
Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
2018-02-03 13:49:22 -08:00
dcache.c
Merge branch 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
2018-02-05 13:05:20 -08:00
dcookies.c
…
direct-io.c
iomap: report collisions between directio and buffered writes to userspace
2018-01-08 10:41:39 -08:00
drop_caches.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
eventfd.c
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-01-31 09:25:20 -08:00
eventpoll.c
eventpoll: no need to mask the result of epi_item_poll() again
2017-11-28 19:56:15 -05:00
exec.c
exec: Weaken dumpability for secureexec
2018-01-03 10:13:36 -08:00
fcntl.c
shmem: rename functions that are memfd-related
2018-01-31 17:18:39 -08:00
fhandle.c
vfs: Copy struct mount.mnt_id to userspace using put_user()
2018-01-15 12:07:51 -08:00
file_table.c
vfs: remove unused hardirq.h
2017-12-07 14:23:30 -05:00
file.c
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-01-31 09:25:20 -08:00
filesystems.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
fs_pin.c
Merge branch 'linus' into locking/core, to resolve conflicts
2017-11-07 10:32:44 +01:00
fs_struct.c
…
fs-writeback.c
writeback: update comment in inode_io_list_move_locked
2018-01-06 09:18:00 -07:00
inode.c
fs: only set S_VERSION when updating times if necessary
2018-01-29 06:42:21 -05:00
internal.h
fs: expose do_unlinkat for built-in callers
2017-11-10 08:48:46 -05:00
ioctl.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
iomap.c
iomap: warn on zero-length mappings
2018-01-29 07:27:24 -08:00
Kconfig
Merge tag 'staging-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
2018-02-01 09:51:57 -08:00
Kconfig.binfmt
ARM: enable elf_fdpic on systems with an MMU
2017-09-10 19:31:46 -04:00
libfs.c
Rename superblock flags (MS_xyz -> SB_xyz)
2017-11-27 13:05:09 -08:00
locks.c
Rename superblock flags (MS_xyz -> SB_xyz)
2017-11-27 13:05:09 -08:00
Makefile
ncpfs: move net/ncpfs to drivers/staging/ncpfs
2017-11-28 13:55:01 +01:00
mbcache.c
mbcache: make sure c_entry_count is not decremented past zero
2018-01-09 23:57:52 -05:00
mount.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mpage.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
namei.c
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-01-31 09:25:20 -08:00
namespace.c
VFS: Handle lazytime in do_mount()
2017-12-09 20:16:33 -05:00
no-block.c
…
nsfs.c
nsfs: generalize ns_get_path() for path resolution with a task
2017-12-31 16:12:23 +01:00
open.c
ovl: don't allow writing ioctl on lower layer
2017-09-05 12:53:12 +02:00
pipe.c
fs: annotate ->poll() instances
2017-11-27 16:20:05 -05:00
pnode.c
mnt: Make propagate_umount less slow for overlapping mount propagation trees
2017-05-23 08:41:17 -05:00
pnode.h
…
posix_acl.c
posix_acl: convert posix_acl.a_refcount from atomic_t to refcount_t
2018-01-02 19:27:28 -08:00
proc_namespace.c
Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-01-30 17:58:07 -08:00
read_write.c
Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-11-17 12:08:18 -08:00
readdir.c
Merge branch 'linus' into locking/core, to resolve conflicts
2017-11-07 10:32:44 +01:00
select.c
make kernel-side POLL... arch-independent
2017-11-29 19:00:41 -05:00
seq_file.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
signalfd.c
fs: annotate ->poll() instances
2017-11-27 16:20:05 -05:00
splice.c
locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE()
2017-10-25 11:01:08 +02:00
stack.c
…
stat.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
statfs.c
Rename superblock flags (MS_xyz -> SB_xyz)
2017-11-27 13:05:09 -08:00
super.c
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-01-31 09:25:20 -08:00
sync.c
Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block
2017-11-14 15:32:19 -08:00
timerfd.c
fs: annotate ->poll() instances
2017-11-27 16:20:05 -05:00
userfaultfd.c
userfaultfd: convert to use anon_inode_getfd()
2018-01-31 17:18:39 -08:00
utimes.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
xattr.c
lsm: fix smack_inode_removexattr and xattr_getsecurity memleak
2017-10-04 18:03:15 +11:00