[PATCH] f2fs: write checkpoint before starting FG_GC

[Jaegeuk Kim]

In order to be aware of prefree and free sections during FG_GC, let's start with
write_checkpoint().

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@xxxxxxxxxxx>
---
 fs/f2fs/gc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 83cec8f..37b05e1 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -669,8 +669,10 @@ gc_more:
 	if (!(sbi->sb->s_flags & MS_ACTIVE))
 		goto stop;
 
-	if (gc_type == BG_GC && has_not_enough_free_secs(sbi, nfree))
+	if (gc_type == BG_GC && has_not_enough_free_secs(sbi, nfree)) {
 		gc_type = FG_GC;
+		write_checkpoint(sbi, false);
+	}
 
 	if (!__get_victim(sbi, &segno, gc_type, NO_CHECK_TYPE))
 		goto stop;
-- 
1.8.1.3.566.gaa39828

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