diff options
| author | Yunlei He <heyunlei@huawei.com> | 2016-08-18 21:01:19 +0800 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-04-13 12:33:58 +0200 |
| commit | bfa38445aa54de1548d0cb781ec1aebc5abda78e (patch) | |
| tree | 9a7b7eeaa415467b054f2aef87f0ef83f0c3004c | |
| parent | 2c544a5a4257ea28abfdbc954cec93dd7d4472bd (diff) | |
f2fs: skip new checkpoint when doing fstrim without fs change
This patch enables to do fstrim without checkpoint, if there is no fs
change.
Signed-off-by: Yunlei He <heyunlei@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
| -rw-r--r-- | fs/f2fs/checkpoint.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index 5a3ee5e56..d4b6c1478 100644 --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -1189,6 +1189,17 @@ int write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) f2fs_flush_merged_bios(sbi); + /* this is the case of multiple fstrims without any changes */ + if (cpc->reason == CP_DISCARD && !is_sbi_flag_set(sbi, SBI_IS_DIRTY)) { + f2fs_bug_on(sbi, NM_I(sbi)->dirty_nat_cnt); + f2fs_bug_on(sbi, SIT_I(sbi)->dirty_sentries); + f2fs_bug_on(sbi, prefree_segments(sbi)); + flush_sit_entries(sbi, cpc); + clear_prefree_segments(sbi, cpc); + unblock_operations(sbi); + goto out; + } + /* * update checkpoint pack index * Increase the version number so that |