linux/fs/fat
Nick Piggin fb045adb99 fs: dcache reduce branches in lookup path
Reduce some branches and memory accesses in dcache lookup by adding dentry
flags to indicate common d_ops are set, rather than having to check them.
This saves a pointer memory access (dentry->d_op) in common path lookup
situations, and saves another pointer load and branch in cases where we
have d_op but not the particular operation.

Patched with:

git grep -E '[.>]([[:space:]])*d_op([[:space:]])*=' | xargs sed -e 's/\([^\t ]*\)->d_op = \(.*\);/d_set_d_op(\1, \2);/' -e 's/\([^\t ]*\)\.d_op = \(.*\);/d_set_d_op(\&\1, \2);/' -i

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:28 +11:00
..
cache.c fatfs: ratelimit corruption report 2010-05-25 08:07:04 -07:00
dir.c fat: convert to unlocked_ioctl 2010-05-17 08:16:12 +09:00
fat.h check ATTR_SIZE contraints in inode_change_ok 2010-08-09 16:47:39 -04:00
fatent.c block: remove BLKDEV_IFL_WAIT 2010-09-16 20:52:58 +02:00
file.c check ATTR_SIZE contraints in inode_change_ok 2010-08-09 16:47:39 -04:00
inode.c fs: dcache reduce branches in lookup path 2011-01-07 17:50:28 +11:00
Kconfig vfat: Note the NLS requirement 2009-04-17 09:32:11 -07:00
Makefile fat: move fs/vfat/* and fs/msdos/* to fs/fat 2008-11-06 15:41:20 -08:00
misc.c block: remove the BH_Eopnotsupp flag 2010-09-10 12:35:40 +02:00
namei_msdos.c fs: dcache reduce branches in lookup path 2011-01-07 17:50:28 +11:00
namei_vfat.c fs: dcache reduce branches in lookup path 2011-01-07 17:50:28 +11:00