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688159b6db
linux/fs/f2fs
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Fan Li 688159b6db f2fs: avoid unnecessary search while finding victim in gc 
variable nsearched in get_victim_by_default() indicates the number of
dirty segments we already checked. There are 2 problems about the way
it updates:
1. When p.ofs_unit is greater than 1, the victim we find consists
   of multiple segments, possibly more than 1 dirty segment.
   But nsearched always increases by 1.
2. If segments have been found but not been chosen, nsearched won't
   increase. So even we have checked all dirty segments, nsearched
   may still less than p.max_search.
All these problems could cause unnecessary search after all dirty
segments have already been checked.

Signed-off-by: Fan li <fanofcode.li@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-02-22 16:07:23 -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: use wait_for_stable_page to avoid contention 2016-02-22 16:07:23 -08:00
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: use wait_for_stable_page to avoid contention 2016-02-22 16:07:23 -08:00
debug.c Merge tag 'for-f2fs-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs 2016-01-13 21:01:44 -08:00
dir.c f2fs: use wait_for_stable_page to avoid contention 2016-02-22 16:07:23 -08:00
extent_cache.c f2fs: skip releasing nodes in chindless extent tree 2016-01-08 11:57:18 -08:00
f2fs_crypto.h f2fs crypto: remove alloc_page for bounce_page 2015-06-01 16:21:10 -07:00
f2fs.h f2fs: use wait_for_stable_page to avoid contention 2016-02-22 16:07:23 -08:00
file.c f2fs: use wait_for_stable_page to avoid contention 2016-02-22 16:07:23 -08:00
gc.c f2fs: avoid unnecessary search while finding victim in gc 2016-02-22 16:07:23 -08:00
gc.h f2fs: detect idle time depending on user behavior 2016-01-11 15:56:37 -08:00
hash.c f2fs: introduce dot and dotdot name check 2015-05-28 15:41:34 -07:00
inline.c f2fs: delete unnecessary wait for page writeback 2016-02-22 16:07:23 -08:00
inode.c f2fs: use wait_for_stable_page to avoid contention 2016-02-22 16:07:23 -08:00
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 Merge tag 'for-f2fs-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs 2016-01-13 21:01:44 -08:00
node.c f2fs: use wait_for_stable_page to avoid contention 2016-02-22 16:07:23 -08:00
node.h f2fs: use wait_for_stable_page to avoid contention 2016-02-22 16:07:23 -08:00
recovery.c f2fs: use wait_for_stable_page to avoid contention 2016-02-22 16:07:23 -08:00
segment.c f2fs: use wait_for_stable_page to avoid contention 2016-02-22 16:07:23 -08:00
segment.h Revert "f2fs: do not skip dentry block writes" 2015-10-12 13:38:02 -07:00
shrinker.c f2fs: speed up shrinking extent tree entries 2015-12-30 10:13:00 -08:00
super.c f2fs: export dirty_nats_ratio in sysfs 2016-02-22 16:07:23 -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: use wait_for_stable_page to avoid contention 2016-02-22 16:07:23 -08:00
xattr.h vfs: Distinguish between full xattr names and proper prefixes 2015-12-06 21:33:52 -05:00