Nick Piggin b04f784e5d fs: remove extra lookup in __lookup_hash ... fs: remove extra lookup in __lookup_hash Optimize lookup for create operations, where no dentry should often be common-case. In cases where it is not, such as unlink, the added overhead is much smaller than the removed. Also, move comments about __d_lookup racyness to the __d_lookup call site. d_lookup is intuitive; __d_lookup is what needs commenting. So in that same vein, add kerneldoc comments to __d_lookup and clean up some of the comments: - We are interested in how the RCU lookup works here, particularly with renames. Make that explicit, and point to the document where it is explained in more detail. - RCU is pretty standard now, and macros make implementations pretty mindless. If we want to know about RCU barrier details, we look in RCU code. - Delete some boring legacy comments because we don't care much about how the code used to work, more about the interesting parts of how it works now. So comments about lazy LRU may be interesting, but would better be done in the LRU or refcount management code. Signed-off-by: Nick Piggin <npiggin@kernel.dk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>		2010-08-18 08:35:47 -04:00
..
9p	v9fs: fixup for inode_setattr being removed	2010-08-11 00:08:00 -04:00
adfs	check ATTR_SIZE contraints in inode_change_ok	2010-08-09 16:47:39 -04:00
affs	AFFS: wait for sb synchronization when needed	2010-08-09 16:48:51 -04:00
afs	Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6	2010-08-13 10:37:30 -07:00
autofs	autofs/autofs4: Move compat_ioctl handling into fs	2010-08-09 00:13:34 +02:00
autofs4	autofs4: remove unneeded null check in try_to_fill_dentry()	2010-08-11 08:59:06 -07:00
befs	fix typos concerning "initiali[zs]e"	2010-06-16 18:05:05 +02:00
bfs	BFS: clean up the superblock usage	2010-08-09 16:48:53 -04:00
btrfs	Merge branch 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block	2010-08-10 15:22:42 -07:00
cachefiles	Add a dummy printk function for the maintenance of unused printks	2010-08-12 09:51:35 -07:00
ceph	ceph: generalize mon requests, add pool op support	2010-08-10 14:41:25 -07:00
cifs	cifs: update README to include details about 'fsc' option	2010-08-11 17:11:28 +00:00
coda	Merge branch 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block	2010-08-10 15:22:42 -07:00
configfs	fix setattr error handling in sysfs, configfs	2010-06-04 17:16:29 -04:00
cramfs	cramfs: only unlock new inodes	2010-08-18 01:01:33 -04:00
debugfs	Add x64 support to debugfs	2010-05-19 22:41:57 -04:00
devpts	Simplify devpts_get_sb() failure exits	2010-05-21 18:31:12 -04:00
dlm	fs/dlm: Drop unnecessary null test	2010-08-05 14:23:45 -05:00
ecryptfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6	2010-08-10 12:14:39 -07:00
efs
exofs	Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd	2010-08-11 09:19:43 -07:00
exportfs
ext2	mbcache: Remove unused features	2010-08-09 16:48:45 -04:00
ext3	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-08-10 11:26:52 -07:00
ext4	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-08-10 11:26:52 -07:00
fat	remove SWRITE* I/O types	2010-08-18 01:09:01 -04:00
freevxfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-08-10 11:26:52 -07:00
fscache	Add a dummy printk function for the maintenance of unused printks	2010-08-12 09:51:35 -07:00
fuse	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-08-10 11:26:52 -07:00
gfs2	Merge branch 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block	2010-08-10 15:22:42 -07:00
hfs	convert remaining ->clear_inode() to ->evict_inode()	2010-08-09 16:48:37 -04:00
hfsplus	convert remaining ->clear_inode() to ->evict_inode()	2010-08-09 16:48:37 -04:00
hostfs	hostfs ->follow_link() braino	2010-08-18 06:21:10 -04:00
hpfs	switch hpfs to ->evict_inode()	2010-08-09 16:48:17 -04:00
hppfs	switch hppfs to ->evict_inode()	2010-08-09 16:48:16 -04:00
hugetlbfs	new helper: end_writeback()	2010-08-09 16:47:49 -04:00
isofs	isofs: Fix lseek() to position beyond 4 GB	2010-08-11 00:29:47 -04:00
jbd	remove SWRITE* I/O types	2010-08-18 01:09:01 -04:00
jbd2	remove SWRITE* I/O types	2010-08-18 01:09:01 -04:00
jffs2	Merge git://git.infradead.org/mtd-2.6	2010-08-10 11:49:21 -07:00
jfs	jfs: don't allow os2 xattr namespace overlap with others	2010-08-10 15:33:09 -07:00
lockd
logfs	logfs: kill BKL	2010-08-14 00:24:24 +02:00
minix	switch minix to ->evict_inode(), fix write_inode/delete_inode race	2010-08-09 16:47:53 -04:00
ncpfs	Merge branch 'bkl/ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing	2010-08-10 13:58:28 -07:00
nfs	Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6	2010-08-13 10:37:30 -07:00
nfs_common
nfsd	Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notify	2010-08-10 11:39:13 -07:00
nilfs2	kill BH_Ordered flag	2010-08-18 01:09:00 -04:00
nls
notify	Revert "fsnotify: store struct file not struct path"	2010-08-12 14:23:04 -07:00
ntfs	convert remaining ->clear_inode() to ->evict_inode()	2010-08-09 16:48:37 -04:00
ocfs2	Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2	2010-08-13 10:43:50 -07:00
omfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bcopeland/omfs	2010-08-10 11:47:36 -07:00
openpromfs
partitions	[S390] partitions: fix build error in ibm partition detection code	2010-08-13 10:06:55 +02:00
proc	mm: fix up some user-visible effects of the stack guard page	2010-08-15 11:35:52 -07:00
qnx4	get rid of cont_write_begin_newtrunc	2010-08-09 16:47:31 -04:00
quota	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-08-10 11:26:52 -07:00
ramfs	check ATTR_SIZE contraints in inode_change_ok	2010-08-09 16:47:39 -04:00
reiserfs	remove SWRITE* I/O types	2010-08-18 01:09:01 -04:00
romfs
smbfs	switch smbfs to evict_inode()	2010-08-09 16:48:00 -04:00
squashfs	Squashfs: fix checkpatch.pl warnings	2010-08-08 22:29:33 +00:00
sysfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-08-10 11:26:52 -07:00
sysv	fs/sysv/super.c: add support for non-PDP11 v7 filesystems	2010-08-11 08:59:23 -07:00
ubifs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-08-10 11:26:52 -07:00
udf	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-08-10 11:26:52 -07:00
ufs	remove SWRITE* I/O types	2010-08-18 01:09:01 -04:00
xfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-08-10 11:26:52 -07:00
aio.c	aio: fix wrong subsystem comments	2010-08-05 13:21:23 -07:00
anon_inodes.c	Revert "anon_inode: set S_IFREG on the anon_inode"	2010-05-27 22:03:05 -04:00
attr.c	check ATTR_SIZE contraints in inode_change_ok	2010-08-09 16:47:39 -04:00
bad_inode.c	bkl: Remove locked .ioctl file operation	2010-08-14 00:24:24 +02:00
binfmt_aout.c
binfmt_elf.c
binfmt_elf_fdpic.c	binfmt_elf_fdpic: Fix clear_user() error handling	2010-06-01 08:11:06 -07:00
binfmt_em86.c
binfmt_flat.c	flat: tweak default stack alignment	2010-06-29 15:29:31 -07:00
binfmt_misc.c	convert remaining ->clear_inode() to ->evict_inode()	2010-08-09 16:48:37 -04:00
binfmt_script.c
binfmt_som.c
bio-integrity.c
bio.c	block: unify flags for struct bio and struct request	2010-08-07 18:20:39 +02:00
block_dev.c	blkdev: cgroup whitelist permission fix	2010-08-11 08:59:18 -07:00
buffer.c	remove SWRITE* I/O types	2010-08-18 01:09:01 -04:00
char_dev.c	Fix init ordering of /dev/console vs callers of modprobe	2010-08-06 09:17:02 -07:00
compat.c	Mark arguments to certain syscalls as being const	2010-08-13 16:53:13 -07:00
compat_binfmt_elf.c
compat_ioctl.c	bkl: Remove locked .ioctl file operation	2010-08-14 00:24:24 +02:00
dcache.c	fs: remove extra lookup in __lookup_hash	2010-08-18 08:35:47 -04:00
dcookies.c
direct-io.c	sort out blockdev_direct_IO variants	2010-08-09 16:47:29 -04:00
drop_caches.c	simplify checks for I_CLEAR/I_FREEING	2010-08-09 16:47:44 -04:00
eventfd.c
eventpoll.c	sched, wait: Use wrapper functions	2010-05-11 17:43:58 +02:00
exec.c	fs: fs_struct rwlock to spinlock	2010-08-18 08:35:46 -04:00
fcntl.c	vfs: O_* bit numbers uniqueness check	2010-08-11 08:59:02 -07:00
fifo.c
file.c	vfs: use kmalloc() to allocate fdmem if possible	2010-08-11 08:59:02 -07:00
file_table.c	Revert "fsnotify: store struct file not struct path"	2010-08-12 14:23:04 -07:00
filesystems.c
fs-writeback.c	mm: fix writeback_in_progress()	2010-08-12 08:43:30 -07:00
fs_struct.c	fs: fs_struct rwlock to spinlock	2010-08-18 08:35:46 -04:00
generic_acl.c	vfs: update ctime when changing the file's permission by setfacl	2010-08-18 01:04:22 -04:00
inode.c	Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notify	2010-08-10 11:39:13 -07:00
internal.h	Bury __put_super_and_need_restart()	2010-05-21 18:31:16 -04:00
ioctl.c	bkl: Remove locked .ioctl file operation	2010-08-14 00:24:24 +02:00
ioprio.c
Kconfig	fs/Kconfig: Fix typo Userpace -> Userspace	2010-07-20 17:30:22 +02:00
Kconfig.binfmt
libfs.c	check ATTR_SIZE contraints in inode_change_ok	2010-08-09 16:47:39 -04:00
locks.c
Makefile	Take statfs variants to fs/statfs.c	2010-05-21 18:31:17 -04:00
mbcache.c	mbcache: Limit the maximum number of cache entries	2010-08-18 06:24:41 -04:00
mpage.c
namei.c	fs: remove extra lookup in __lookup_hash	2010-08-18 08:35:47 -04:00
namespace.c	vfs: remove unused MNT_STRICTATIME	2010-08-11 00:29:47 -04:00
nfsctl.c
no-block.c
open.c	vfs: clarify that nonseekable_open() will never fail	2010-08-11 08:59:02 -07:00
pipe.c	pipe: fix check in "set size" fcntl	2010-06-10 19:08:34 +02:00
pnode.c
pnode.h
posix_acl.c
read_write.c	fsnotify: pass a file instead of an inode to open, read, and write	2010-07-28 09:58:32 -04:00
read_write.h
readdir.c	vfs: fix warning: 'dirent' is used uninitialized in this function	2010-08-09 20:45:05 -07:00
select.c
seq_file.c
signalfd.c	signalfd: fill in ssi_int for posix timers and message queues	2010-08-11 08:59:20 -07:00
splice.c	splice: fix misuse of SPLICE_F_NONBLOCK	2010-08-07 18:52:56 +02:00
stack.c
stat.c	Mark arguments to certain syscalls as being const	2010-08-13 16:53:13 -07:00
statfs.c	add f_flags to struct statfs(64)	2010-08-09 16:48:44 -04:00
super.c	no need for list_for_each_entry_safe()/resetting with superblock list	2010-08-09 16:49:02 -04:00
sync.c	get rid of file_fsync()	2010-08-09 16:47:43 -04:00
timerfd.c	fs/timerfd.c: make use of wait_event_interruptible_locked_irq()	2010-05-20 13:21:42 -07:00
utimes.c	Mark arguments to certain syscalls as being const	2010-08-13 16:53:13 -07:00
xattr.c	fs: xattr_handler table should be const	2010-05-21 18:31:18 -04:00
xattr_acl.c