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fb045adb99
linux/fs/jfs
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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
..
acl.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
endian24.h JFS: Whitespace cleanup and remove some dead code 2007-06-06 15:28:35 -05:00
file.c remove inode_setattr 2010-08-09 16:47:37 -04:00
inode.c switch jfs to ->evict_inode() 2010-08-09 16:48:17 -04:00
ioctl.c [PATCH] r/o bind mounts: elevate write count for ioctls() 2008-04-19 00:29:24 -04:00
jfs_acl.h dquot: move dquot transfer responsibility into the filesystem 2010-03-05 00:20:28 +01:00
jfs_btree.h JFS: White space cleanup 2006-10-02 09:55:27 -05:00
jfs_debug.c proc 2/2: remove struct proc_dir_entry::owner 2009-03-31 01:14:44 +04:00
jfs_debug.h JFS: switch to seq_files 2008-05-13 08:22:10 -05:00
jfs_dinode.h BKL-removal: Implement a compat_ioctl handler for JFS 2008-02-07 13:45:29 -06:00
jfs_dmap.c Merge branch 'master' into for-next 2010-04-23 02:08:44 +02:00
jfs_dmap.h jfs_dmap.[ch]: trivial typo fix: s/heigth/height/g 2010-02-02 14:21:35 -06:00
jfs_dtree.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
jfs_dtree.h jfs: remove DIRENTSIZ 2008-06-10 15:12:58 -05:00
jfs_extent.c dquot: cleanup space allocation / freeing routines 2010-03-05 00:20:28 +01:00
jfs_extent.h JFS: White space cleanup 2006-10-02 09:55:27 -05:00
jfs_filsys.h JFS: Whitespace cleanup and remove some dead code 2007-06-06 15:28:35 -05:00
jfs_imap.c list.h: new helper - hlist_add_fake() 2010-10-25 21:24:15 -04:00
jfs_imap.h JFS: Whitespace cleanup and remove some dead code 2007-06-06 15:28:35 -05:00
jfs_incore.h switch jfs to inode->i_acl 2009-06-24 08:17:04 -04:00
jfs_inode.c jfs: replace inode uid,gid,mode init with helper 2010-05-21 18:31:23 -04:00
jfs_inode.h switch jfs to ->evict_inode() 2010-08-09 16:48:17 -04:00
jfs_lock.h JFS: use __set_current_state() 2007-04-26 07:30:29 -05:00
jfs_logmgr.c Fix various typos of valid in comments 2010-09-21 17:04:50 +02:00
jfs_logmgr.h more low-hanging fruits - kernel, fs, lib signedness 2007-10-14 12:41:52 -07:00
jfs_metapage.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
jfs_metapage.h JFS: White space cleanup 2006-10-02 09:55:27 -05:00
jfs_mount.c fix printk typo 'faild' 2010-08-09 11:25:17 +02:00
jfs_superblock.h JFS: White space cleanup 2006-10-02 09:55:27 -05:00
jfs_txnmgr.c new helper: ihold() 2010-10-25 21:26:11 -04:00
jfs_txnmgr.h JFS: Whitespace cleanup and remove some dead code 2007-06-06 15:28:35 -05:00
jfs_types.h jfs: remove xtLookupList() 2009-01-09 15:42:04 -06:00
jfs_umount.c JFS: Make sure special inode data is written after journal is flushed 2008-01-03 13:11:37 -06:00
jfs_unicode.c JFS: White space cleanup 2006-10-02 09:55:27 -05:00
jfs_unicode.h include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
jfs_uniupr.c JFS: White space cleanup 2006-10-02 09:55:27 -05:00
jfs_xattr.h JFS: White space cleanup 2006-10-02 09:55:27 -05:00
jfs_xtree.c dquot: cleanup space allocation / freeing routines 2010-03-05 00:20:28 +01:00
jfs_xtree.h jfs: remove xtLookupList() 2009-01-09 15:42:04 -06:00
Kconfig jfs: needs crc32_le 2009-02-02 13:43:28 -06:00
Makefile
namei.c fs: dcache reduce branches in lookup path 2011-01-07 17:50:28 +11:00
resize.c jfs: fix diAllocExt error in resizing filesystem 2010-04-16 08:01:20 -05:00
super.c fs: dcache reduce branches in lookup path 2011-01-07 17:50:28 +11:00
symlink.c jfs: add jfs specific ->setattr call 2010-04-16 08:05:50 -05:00
xattr.c jfs: don't allow os2 xattr namespace overlap with others 2010-08-10 15:33:09 -07:00