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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-06-20 00:36:07 +0200 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-08-04 23:09:55 +0200 |
| commit | 1b38dc8e74a366b92986755c304591e330f3c3e0 (patch) | |
| tree | b5e5b2d8c23eaf31b697b7031692d537f18bf5d7 /fs/f2fs/shrinker.c | |
| parent | f2fs: introduce a shrinker for mounted fs (diff) | |
| download | linux-1b38dc8e74a366b92986755c304591e330f3c3e0.tar.xz linux-1b38dc8e74a366b92986755c304591e330f3c3e0.zip | |
f2fs: shrink nat_cache entries
This patch registers shrinking nat_cache entries.
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/shrinker.c')
| -rw-r--r-- | fs/f2fs/shrinker.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/fs/f2fs/shrinker.c b/fs/f2fs/shrinker.c index 16e9b43635c2..c4bd6ee5936c 100644 --- a/fs/f2fs/shrinker.c +++ b/fs/f2fs/shrinker.c @@ -18,6 +18,11 @@ static LIST_HEAD(f2fs_list); static DEFINE_SPINLOCK(f2fs_list_lock); static unsigned int shrinker_run_no; +static unsigned long __count_nat_entries(struct f2fs_sb_info *sbi) +{ + return NM_I(sbi)->nat_cnt - NM_I(sbi)->dirty_nat_cnt; +} + unsigned long f2fs_shrink_count(struct shrinker *shrink, struct shrink_control *sc) { @@ -37,7 +42,8 @@ unsigned long f2fs_shrink_count(struct shrinker *shrink, } spin_unlock(&f2fs_list_lock); - /* TODO: count # of objects */ + /* shrink clean nat cache entries */ + count += __count_nat_entries(sbi); spin_lock(&f2fs_list_lock); p = p->next; @@ -76,7 +82,8 @@ unsigned long f2fs_shrink_scan(struct shrinker *shrink, sbi->shrinker_run_no = run_no; - /* TODO: shrink caches */ + /* shrink clean nat cache entries */ + freed += try_to_free_nats(sbi, nr); spin_lock(&f2fs_list_lock); p = p->next; |