kernel_optimize_test/fs/coda
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 fs: dcache remove dcache_lock 2011-01-07 17:50:23 +11:00
cnode.c Coda: add spin lock to protect accesses to struct coda_inode_info. 2010-10-25 08:02:40 -07:00
coda_int.h drop unused dentry argument to ->fsync 2010-05-27 22:05:02 -04:00
coda_linux.c coda: remove CODA_FS_OLD_API 2008-07-25 10:53:33 -07:00
dir.c fs: dcache reduce branches in lookup path 2011-01-07 17:50:28 +11:00
file.c Coda: push BKL regions into coda_upcall() 2010-10-25 08:02:40 -07:00
inode.c fs: icache RCU free inodes 2011-01-07 17:50:26 +11:00
Kconfig fs/Kconfig: move coda out 2009-01-22 13:16:01 +03:00
Makefile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pioctl.c Coda: push BKL regions into coda_upcall() 2010-10-25 08:02:40 -07:00
psdev.c Coda: replace BKL with mutex 2010-10-25 08:02:40 -07:00
symlink.c Coda: push BKL regions into coda_upcall() 2010-10-25 08:02:40 -07:00
sysctl.c sysctl: Drop & in front of every proc_handler. 2009-11-18 08:37:40 -08:00
upcall.c Coda: replace BKL with mutex 2010-10-25 08:02:40 -07:00