diff mbox series

[f2fs-dev,v2] f2fs: fix uninitialized skipped_gc_rwsem

Message ID 20230216072821epcms2p35e1fecca382380723ac0031862687173@epcms2p3 (mailing list archive)
State Superseded
Headers show
Series [f2fs-dev,v2] f2fs: fix uninitialized skipped_gc_rwsem | expand

Commit Message

Yonggil Song Feb. 16, 2023, 7:28 a.m. UTC 
When f2fs skipped a gc round during victim migration, there was a bug which
would skip all upcoming gc rounds unconditionally because skipped_gc_rwsem
was not initialized. It fixes the bug by correctly initializing the
skipped_gc_rwsem inside the gc loop.

Fixes: 3db1de0e582c ("f2fs: change the current atomic write way")
Signed-off-by: Yonggil Song <yonggil.song@samsung.com>
diff mbox series

Patch

diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index b22f49a6f128..81d326abaac1 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -1786,8 +1786,8 @@  int f2fs_gc(struct f2fs_sb_info *sbi, struct f2fs_gc_control *gc_control)
 				prefree_segments(sbi));
 
 	cpc.reason = __get_cp_reason(sbi);
-	sbi->skipped_gc_rwsem = 0;
 gc_more:
+	sbi->skipped_gc_rwsem = 0;
 	if (unlikely(!(sbi->sb->s_flags & SB_ACTIVE))) {
 		ret = -EINVAL;
 		goto stop;