xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

f2fs: shrink extent_cache entries

Browse Source 
This patch registers shrinking extent_caches.

Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim
2015-06-19 13:41:23 -07:00
parent 1b38dc8e74
commit 554df79e52
4 changed files with 27 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
fs/f2fs/shrinker.c
View File

@@ -23,6 +23,11 @@ static unsigned long __count_nat_entries(struct f2fs_sb_info *sbi)
return NM_I(sbi)->nat_cnt - NM_I(sbi)->dirty_nat_cnt;
}
static unsigned long __count_extent_cache(struct f2fs_sb_info *sbi)
{
return sbi->total_ext_tree + atomic_read(&sbi->total_ext_node);
}
unsigned long f2fs_shrink_count(struct shrinker *shrink,
struct shrink_control *sc)
{
@@ -42,6 +47,9 @@ unsigned long f2fs_shrink_count(struct shrinker *shrink,
}
spin_unlock(&f2fs_list_lock);
/* count extent cache entries */
count += __count_extent_cache(sbi);
/* shrink clean nat cache entries */
count += __count_nat_entries(sbi);
@@ -82,8 +90,12 @@ unsigned long f2fs_shrink_scan(struct shrinker *shrink,
sbi->shrinker_run_no = run_no;
/* shrink extent cache entries */
freed += f2fs_shrink_extent_tree(sbi, nr >> 1);
/* shrink clean nat cache entries */
freed += try_to_free_nats(sbi, nr);
if (freed < nr)
freed += try_to_free_nats(sbi, nr - freed);
spin_lock(&f2fs_list_lock);
p = p->next;