diff options
| author | Yunlei He <heyunlei@huawei.com> | 2016-08-18 13:01:19 (GMT) |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2016-08-30 01:31:07 (GMT) |
| commit | 58cce381fa4e8cfbe7ce005a6a858267a3b481f2 (patch) | |
| tree | 67b4dcec3fffea9646c3063adea345672d748976 | |
| parent | f83a2584cae8f4deacb4c82da0b061813d59a40c (diff) | |
| download | linux-58cce381fa4e8cfbe7ce005a6a858267a3b481f2.tar.xz | |
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 f94d01e..cd0443d 100644 --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -1190,6 +1190,17 @@ 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 |