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| author |  Jaegeuk Kim <jaegeuk@kernel.org>
| 2016-12-29 16:58:54 -0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org>
| 2017-02-22 13:16:36 -0800 |
| commit | 0333ad4e4f49e14217256e1db1134a70cf60b2de (patch) | |
| tree | a00f9a2e6139942b4028a6f4fbf5aad3b09b3bde /fs/f2fs | |
| parent | f2fs: relax async discard commands more (diff) | |
| download | linux-0333ad4e4f49e14217256e1db1134a70cf60b2de.tar.gz linux-0333ad4e4f49e14217256e1db1134a70cf60b2de.tar.bz2 linux-0333ad4e4f49e14217256e1db1134a70cf60b2de.zip | |
f2fs: avoid needless checkpoint in f2fs_trim_fs
The f2fs_trim_fs() doesn't need to do checkpoint if there are newly allocated
data blocks only which didn't change the critical checkpoint data such as nat
and sit entries.
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/checkpoint.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index 1a9ba69a22ba..917b5c5053ae 100644 --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -1248,14 +1248,15 @@ 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; + if (cpc->reason == CP_DISCARD) { + if (NM_I(sbi)->dirty_nat_cnt == 0 && + SIT_I(sbi)->dirty_sentries == 0 && + prefree_segments(sbi) == 0) { + flush_sit_entries(sbi, cpc); + clear_prefree_segments(sbi, cpc); + unblock_operations(sbi); + goto out; + } } /* |