linux/fs/f2fs
Fan Li 692223d132 f2fs: optimize __find_rev_next_bit
1. Skip __reverse_ulong if the bitmap is empty.
2. Reduce branches and codes.
According to my test, the performance of this new version is 5% higher on
an empty bitmap of 64bytes, and remains about the same in the worst scenario.

Signed-off-by: Fan li <fanofcode.li@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2015-12-04 11:52:35 -08:00
..
acl.c f2fs: make posix_acl_create() safer and cleaner 2015-05-07 11:38:31 -07:00
acl.h f2fs: avoid deadlock on init_inode_metadata 2014-11-03 16:07:33 -08:00
checkpoint.c f2fs: support lower priority asynchronous readahead in ra_meta_pages 2015-10-12 14:03:15 -07:00
crypto_fname.c f2fs crypto: clean up error handling in f2fs_fname_setup_filename 2015-06-01 16:21:08 -07:00
crypto_key.c KEYS: Merge the type-specific data with the payload data 2015-10-21 15:18:36 +01:00
crypto_policy.c f2fs crypto: do not set encryption policy for non-directory by ioctl 2015-06-01 16:21:07 -07:00
crypto.c f2fs crypto: add alloc_bounce_page 2015-06-11 15:04:20 -07:00
data.c f2fs: fix to remove directory inode from dirty list 2015-12-04 11:52:34 -08:00
debug.c f2fs: report error of f2fs_create_root_stats 2015-12-04 11:52:33 -08:00
dir.c f2fs: set GFP_NOFS for grab_cache_page 2015-10-12 13:38:03 -07:00
extent_cache.c f2fs: fix to skip shrinking extent nodes 2015-10-22 09:39:35 -07:00
f2fs_crypto.h f2fs crypto: remove alloc_page for bounce_page 2015-06-01 16:21:10 -07:00
f2fs.h f2fs: fix to enable missing ioctl interfaces in ->compat_ioctl 2015-12-04 11:52:34 -08:00
file.c f2fs: fix to enable missing ioctl interfaces in ->compat_ioctl 2015-12-04 11:52:34 -08:00
gc.c f2fs: relocate the tracepoint for background_gc 2015-10-13 10:02:01 -07:00
gc.h f2fs: support synchronous gc in ioctl 2015-10-09 16:20:56 -07:00
hash.c f2fs: introduce dot and dotdot name check 2015-05-28 15:41:34 -07:00
inline.c f2fs: support fiemap for inline_data 2015-10-20 11:33:21 -07:00
inode.c f2fs: no need to lock for update_inode_page all the time 2015-10-09 16:20:50 -07:00
Kconfig f2fs: fix typo 2015-08-21 22:43:32 -07:00
Makefile f2fs: maintain extent cache in separated file 2015-08-04 14:09:58 -07:00
namei.c fs/f2fs/namei.c: remove unnecessary new_valid_dev() check 2015-11-09 15:11:24 -08:00
node.c f2fs: export ra_nid_pages to sysfs 2015-10-12 14:03:43 -07:00
node.h f2fs: export ra_nid_pages to sysfs 2015-10-12 14:03:43 -07:00
recovery.c f2fs: support lower priority asynchronous readahead in ra_meta_pages 2015-10-12 14:03:15 -07:00
segment.c f2fs: optimize __find_rev_next_bit 2015-12-04 11:52:35 -08:00
segment.h Revert "f2fs: do not skip dentry block writes" 2015-10-12 13:38:02 -07:00
shrinker.c f2fs: shrink free_nids entries 2015-08-20 09:00:06 -07:00
super.c f2fs: fix memory leak of kobject in error path of fill_super 2015-12-04 11:52:34 -08:00
trace.c f2fs: add sbi and page pointer in f2fs_io_info 2015-05-28 15:41:32 -07:00
trace.h f2fs: add sbi and page pointer in f2fs_io_info 2015-05-28 15:41:32 -07:00
xattr.c f2fs: xattr simplifications 2015-11-13 20:34:34 -05:00
xattr.h f2fs crypto: add encryption xattr support 2015-05-28 15:41:47 -07:00