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201ef5e080
linux/fs/f2fs
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Hou Pengyang 201ef5e080 f2fs: improve shrink performance of extent nodes 
On the worst case, we need to scan the whole radix tree and every rb-tree to
free the victimed extent_nodes when shrinking.

Pengyang initially introduced a victim_list to record the victimed extent_nodes,
and free these extent_nodes by just scanning a list.

Later, Chao Yu enhances the original patch to improve memory footprint by
removing victim list.

The policy of lru list shrinking becomes:
1) lock lru list's lock
2) trylock extent tree's lock
3) remove extent node from lru list
4) unlock lru list's lock
5) do shrink
6) repeat 1) to 5)

Signed-off-by: Hou Pengyang <houpengyang@huawei.com>
Signed-off-by: Chao Yu <chao2.yu@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 wq_has_sleeper for cp_wait wait_queue 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: improve shrink performance of extent nodes 2016-02-22 16:07:23 -08:00
f2fs_crypto.h f2fs crypto: remove alloc_page for bounce_page 2015-06-01 16:21:10 -07:00
f2fs.h f2fs: improve shrink performance of extent nodes 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