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Jan Kara 6e06ae88ed jbd2: speedup jbd2_journal_dirty_metadata() 
It is often the case that we mark buffer as having dirty metadata when
the buffer is already in that state (frequent for bitmaps, inode table
blocks, superblock). Thus it is unnecessary to contend on grabbing
journal head reference and bh_state lock. Avoid that by checking whether
any modification to the buffer is needed before grabbing any locks or
references.

[ Note: this is a fixed version of commit 2143c1965a, which was
  reverted in ebeaa8ddb3 due to a false positive triggering of an
  assertion check. -- Ted ]

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-07-12 18:11:30 -04:00
..
9p
9p: don't leave a half-initialized inode sitting around
2015-07-12 11:22:05 -04:00
adfs
fs/adfs: remove unneeded cast
2015-06-30 19:44:57 -07:00
affs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
afs
net: Add a struct net parameter to sock_create_kern
2015-05-11 10:50:17 -04:00
autofs4
make simple_positive() public
2015-06-23 18:02:01 -04:00
befs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
bfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-04-26 17:22:07 -07:00
btrfs
Merge branch 'for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
2015-07-11 10:26:34 -07:00
cachefiles
Merge branch 'fscache-fixes' into for-next
2015-06-23 18:01:30 -04:00
ceph
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
cifs
cifs: Unset CIFS_MOUNT_POSIX_PATHS flag when following dfs mounts
2015-06-29 14:50:22 -05:00
coda
fs: cleanup slight list_entry abuse
2015-06-23 18:01:59 -04:00
configfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
cramfs
…
debugfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
devpts
devpts: if initialization failed, don't crash when opening /dev/ptmx
2015-06-30 19:44:58 -07:00
dlm
net: Add a struct net parameter to sock_create_kern
2015-05-11 10:50:17 -04:00
ecryptfs
ioctl_compat: handle FITRIM
2015-07-09 11:42:21 -07:00
efivarfs
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-05-06 10:57:37 -07:00
efs
fs/efs: femove unneeded cast
2015-06-25 17:00:42 -07:00
exofs
pagemap.h: move dir_pages() over there
2015-06-23 18:02:00 -04:00
exportfs
…
ext2
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
ext3
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2015-06-24 20:07:10 -07:00
ext4
ioctl_compat: handle FITRIM
2015-07-09 11:42:21 -07:00
f2fs
Merge branch 'for-4.2/writeback' of git://git.kernel.dk/linux-block
2015-06-25 16:00:17 -07:00
fat
writeback: separate out include/linux/backing-dev-defs.h
2015-06-02 08:33:34 -06:00
freevxfs
pagemap.h: move dir_pages() over there
2015-06-23 18:02:00 -04:00
fscache
…
fuse
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
gfs2
Merge tag 'gfs2-merge-window' of git://git.kernel.org:/pub/scm/linux/kernel/git/gfs2/linux-gfs2
2015-06-27 09:47:46 -07:00
hfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
hfsplus
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
hostfs
Merge branch 'for-linus-1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-06-22 12:51:21 -07:00
hpfs
hpfs: hpfs_error: Remove static buffer, use vsprintf extension %pV instead
2015-07-09 13:35:31 -07:00
hugetlbfs
mm/hugetlb: reduce arch dependent code about hugetlb_prefault_arch_hook
2015-06-24 17:49:41 -07:00
isofs
VFS: normal filesystems (and lustre): d_inode() annotations
2015-04-15 15:06:57 -04:00
jbd
…
jbd2
jbd2: speedup jbd2_journal_dirty_metadata()
2015-07-12 18:11:30 -04:00
jffs2
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
jfs
ioctl_compat: handle FITRIM
2015-07-09 11:42:21 -07:00
kernfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2015-07-03 15:20:57 -07:00
lockd
nfsd: eliminate NFSD_DEBUG
2015-04-21 16:16:02 -04:00
logfs
logfs: fix a pagecache leak for symlinks
2015-05-10 22:18:28 -04:00
minix
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
ncpfs
ncpfs: successful rename() should invalidate caches for parents
2015-06-14 11:31:39 -04:00
nfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
nfs_common
…
nfsd
nfsd: wrap too long lines in nfsd4_encode_read
2015-06-22 14:15:05 -04:00
nilfs2
ioctl_compat: handle FITRIM
2015-07-09 11:42:21 -07:00
nls
…
notify
fs/notify: don't use module_init for non-modular inotify_user code
2015-06-16 14:12:34 -04:00
ntfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
ocfs2
ioctl_compat: handle FITRIM
2015-07-09 11:42:21 -07:00
omfs
omfs: fix potential integer overflow in allocator
2015-05-28 18:25:19 -07:00
openpromfs
…
overlayfs
fix a braino in ovl_d_select_inode()
2015-07-12 11:22:05 -04:00
proc
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
pstore
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2015-07-03 15:20:57 -07:00
qnx4
…
qnx6
pagemap.h: move dir_pages() over there
2015-06-23 18:02:00 -04:00
quota
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-04-26 17:22:07 -07:00
ramfs
VFS: normal filesystems (and lustre): d_inode() annotations
2015-04-15 15:06:57 -04:00
reiserfs
Merge branch 'akpm' (patches from Andrew)
2015-06-26 09:52:05 -07:00
romfs
make new_sync_{read,write}() static
2015-04-11 22:29:40 -04:00
squashfs
fs: cleanup slight list_entry abuse
2015-06-23 18:01:59 -04:00
sysfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2015-07-03 15:20:57 -07:00
sysv
pagemap.h: move dir_pages() over there
2015-06-23 18:02:00 -04:00
tracefs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
ubifs
Merge tag 'upstream-4.2-rc1' of git://git.infradead.org/linux-ubifs
2015-06-25 14:11:34 -07:00
udf
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
ufs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
xfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
aio.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-04-16 23:27:56 -04:00
anon_inodes.c
…
attr.c
…
bad_inode.c
…
binfmt_aout.c
…
binfmt_elf_fdpic.c
…
binfmt_elf.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
binfmt_em86.c
…
binfmt_flat.c
…
binfmt_misc.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-04-26 17:22:07 -07:00
binfmt_script.c
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block_dev.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
buffer.c
buffer: remove unusued 'ret' variable
2015-06-02 09:22:34 -06:00
char_dev.c
…
compat_binfmt_elf.c
…
compat_ioctl.c
ioctl_compat: handle FITRIM
2015-07-09 11:42:21 -07:00
compat.c
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coredump.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
dax.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
dcache.c
freeing unlinked file indefinitely delayed
2015-07-12 11:27:04 -04:00
dcookies.c
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direct-io.c
direct-io: only inc/dec inode->i_dio_count for file systems
2015-04-24 15:45:28 -04:00
drop_caches.c
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eventfd.c
…
eventpoll.c
…
exec.c
parisc,metag: Fix crashes due to stack randomization on stack-grows-upwards architectures
2015-05-12 22:03:44 +02:00
fcntl.c
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fhandle.c
vfs: read file_handle only once in handle_to_path
2015-06-02 10:29:07 -07:00
file_table.c
remove the pointless include of lglock.h
2015-06-23 18:02:00 -04:00
file.c
fs/file.c: __fget() and dup2() atomicity rules
2015-07-01 02:31:08 -04:00
filesystems.c
…
fs_pin.c
…
fs_struct.c
…
fs-writeback.c
writeback: do foreign inode detection iff cgroup writeback is enabled
2015-06-17 12:47:37 -06:00
inode.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
internal.h
overlayfs: Make f_path always point to the overlay and f_inode to the underlay
2015-06-19 03:19:32 -04:00
ioctl.c
…
Kconfig
…
Kconfig.binfmt
mm: split ET_DYN ASLR from mmap ASLR
2015-04-14 16:49:05 -07:00
libfs.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
locks.c
proc: show locks in /proc/pid/fdinfo/X
2015-04-17 09:04:12 -04:00
Makefile
um: Remove hppfs
2015-05-31 13:23:08 +02:00
mbcache.c
…
mount.h
fs: use seq_open_private() for proc_mounts
2015-06-30 19:44:56 -07:00
mpage.c
writeback: implement foreign cgroup inode detection
2015-06-02 08:40:20 -06:00
namei.c
namei: make set_root_rcu() return void
2015-06-29 12:07:04 -04:00
namespace.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2015-07-03 15:20:57 -07:00
no-block.c
…
nsfs.c
VFS: assorted weird filesystems: d_inode() annotations
2015-04-15 15:06:58 -04:00
open.c
fs: Call security_ops->inode_killpriv on truncate
2015-06-23 18:01:09 -04:00
pipe.c
VFS: assorted weird filesystems: d_inode() annotations
2015-04-15 15:06:58 -04:00
pnode.c
…
pnode.h
…
posix_acl.c
fs/posix_acl.c: make posix_acl_create() safer and cleaner
2015-06-23 18:01:07 -04:00
proc_namespace.c
fs: use seq_open_private() for proc_mounts
2015-06-30 19:44:56 -07:00
read_write.c
new_sync_write(): discard ->ki_pos unless the return value is positive
2015-04-11 22:29:46 -04:00
readdir.c
…
select.c
locking/arch: Rename set_mb() to smp_store_mb()
2015-05-19 08:32:00 +02:00
seq_file.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
signalfd.c
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splice.c
Merge branch 'akpm' (patches from Andrew)
2015-06-24 20:47:21 -07:00
stack.c
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stat.c
VFS: assorted d_backing_inode() annotations
2015-04-15 15:06:59 -04:00
statfs.c
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super.c
fs:super:get_anon_bdev: fix race condition could cause dev exceed its upper limitation
2015-07-01 01:50:06 -04:00
sync.c
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timerfd.c
…
utimes.c
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xattr.c
evm: fix potential race when removing xattrs
2015-05-21 13:28:47 -04:00