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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2020-11-06 13:22:05 -0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2020-12-03 00:59:26 -0800 |
| commit | a95ba66ac1457b76fe472c8e092ab1006271f16c (patch) | |
| tree | 2ec5e949c50264adc344407585fd6cc3ffc7f964 /fs/f2fs/checkpoint.c | |
| parent | 5fdb322ff2c2b4ad519f490dcb7ebb96c5439af7 (diff) | |
| download | linux-stable-a95ba66ac1457b76fe472c8e092ab1006271f16c.tar.gz linux-stable-a95ba66ac1457b76fe472c8e092ab1006271f16c.tar.bz2 linux-stable-a95ba66ac1457b76fe472c8e092ab1006271f16c.zip | |
f2fs: avoid race condition for shrinker count
Light reported sometimes shinker gets nat_cnt < dirty_nat_cnt resulting in
wrong do_shinker work. Let's avoid to return insane overflowed value by adding
single tracking value.
Reported-by: Light Hsieh <Light.Hsieh@mediatek.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/checkpoint.c')
| -rw-r--r-- | fs/f2fs/checkpoint.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index 14ba1519639e..617d0f6b0836 100644 --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -1619,7 +1619,7 @@ int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) goto out; } - if (NM_I(sbi)->dirty_nat_cnt == 0 && + if (NM_I(sbi)->nat_cnt[DIRTY_NAT] == 0 && SIT_I(sbi)->dirty_sentries == 0 && prefree_segments(sbi) == 0) { f2fs_flush_sit_entries(sbi, cpc); |