summaryrefslogtreecommitdiff
path: root/fs/f2fs
diff options
context:
space:
mode:
authorJaegeuk Kim <jaegeuk@kernel.org>2016-12-30 03:58:54 +0300
committerJaegeuk Kim <jaegeuk@kernel.org>2017-02-23 00:16:36 +0300
commit0333ad4e4f49e14217256e1db1134a70cf60b2de (patch)
treea00f9a2e6139942b4028a6f4fbf5aad3b09b3bde /fs/f2fs
parent4e6a8d9b224f886362ea6e8f6046b541437c944f (diff)
downloadlinux-0333ad4e4f49e14217256e1db1134a70cf60b2de.tar.xz
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.c17
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;
+ }
}
/*