[PATCH 1/2] f2fs: fix to add missing sb_{start,end}_intwrite() for ckpt thread

[Chao Yu]

After commit 261eeb9c1585 ("f2fs: introduce checkpoint_merge mount
option"), checkpoint can be triggered in background thread, it missed
to cover f2fs inner checkpoint operation w/ sb_{start,end}_intwrite(),
fix it.

Fixes: 261eeb9c1585 ("f2fs: introduce checkpoint_merge mount option")
Cc: Daeho Jeong <daehojeong@xxxxxxxxxx>
Signed-off-by: Chao Yu <chao@xxxxxxxxxx>
---
 fs/f2fs/checkpoint.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 55d444bec5c0..66eaad591b60 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -1828,8 +1828,11 @@ static int issue_checkpoint_thread(void *data)
 	if (kthread_should_stop())
 		return 0;
 
-	if (!llist_empty(&cprc->issue_list))
+	if (!llist_empty(&cprc->issue_list)) {
+		sb_start_intwrite(sbi->sb);
 		__checkpoint_and_complete_reqs(sbi);
+		sb_end_intwrite(sbi->sb);
+	}
 
 	wait_event_interruptible(*q,
 		kthread_should_stop() || !llist_empty(&cprc->issue_list));
-- 
2.40.1