kernel/git/stable/linux.git/fs/f2fs/shrinker.c, branch linux-4.7.y

f2fs: speed up shrinking extent tree entries

2015-12-30T18:13:00+00:00

If there is no candidates for shrinking slab entries, we don't need to traverse any trees at all. Reviewed-by: Chao Yu [Jaegeuk Kim: fix missing initialization reported by Yunlei He] Signed-off-by: Jaegeuk Kim

f2fs: use atomic variable for total_extent_tree

2015-12-22T18:31:41+00:00

It would be better to use atomic variable for total_extent_tree. Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: shrink free_nids entries

2015-08-20T16:00:06+00:00

This patch introduces __count_free_nids/try_to_free_nids and registers them in slab shrinker for shrinking under memory pressure. Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: use extent_cache by default

2015-08-04T21:09:56+00:00

We don't need to handle the duplicate extent information. The integrated rule is: - update on-disk extent with largest one tracked by in-memory extent_cache - destroy extent_tree for the truncation case - drop per-inode extent_cache by shrinker Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: shrink extent_cache entries

2015-08-04T21:09:55+00:00

This patch registers shrinking extent_caches. Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: shrink nat_cache entries

2015-08-04T21:09:55+00:00

This patch registers shrinking nat_cache entries. Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: introduce a shrinker for mounted fs

2015-08-04T21:09:54+00:00

This patch introduces a shrinker targeting to reduce memory footprint consumed by a number of in-memory f2fs data structures. In addition, it newly adds: - sbi->umount_mutex to avoid data races on shrinker and put_super - sbi->shruinker_run_no to not revisit objects Note that the basic implementation was copied from fs/ubifs/shrinker.c Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim