[PATCH 1/2] f2fs: flush dirty nats periodically

[Jaegeuk Kim]

This patch flushes dirty nats in order to acquire available nids by writing
checkpoint. Otherwise, we can have no chance to get freed nids.

Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
---
 fs/f2fs/segment.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index a32268eeb472..6e1c8cf75749 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -419,7 +419,7 @@ void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi)
 	else
 		build_free_nids(sbi, false, false);
 
-	if (!is_idle(sbi))
+	if (!is_idle(sbi) && !excess_dirty_nats(sbi))
 		return;
 
 	/* checkpoint is the only way to shrink partial cached entries */
-- 
2.11.0