This is a note to let you know that I've just added the patch titled
f2fs: fix uninitialized skipped_gc_rwsem
to the 6.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
f2fs-fix-uninitialized-skipped_gc_rwsem.patch
and it can be found in the queue-6.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit c24daa942d6aefd216b7e50d364b41ea2e573490
Author: Yonggil Song <yonggil.song@xxxxxxxxxxx>
Date: Thu Feb 16 16:13:50 2023 +0900
f2fs: fix uninitialized skipped_gc_rwsem
[ Upstream commit c17caf0ba3aa3411b96c71b4ce24be1040b8f3e8 ]
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: 6f8d4455060d ("f2fs: avoid fi->i_gc_rwsem[WRITE] lock in f2fs_gc")
Signed-off-by: Yonggil Song <yonggil.song@xxxxxxxxxxx>
Reviewed-by: Chao Yu <chao@xxxxxxxxxx>
Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 6e2cae3d2e717..72cda2f9380f2 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -1795,8 +1795,8 @@ 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;
