[PATCH 2/2] f2fs: skip checkpoint if there is no dirty segments

From: Jaegeuk Kim
Date: Mon Aug 10 2015 - 21:23:38 EST


We should avoid wrong checkpoints when there is no dirty segments.

Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
---
fs/f2fs/gc.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index fcb263a..c4ed116 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -809,13 +809,14 @@ gc_more:
if (unlikely(f2fs_cp_error(sbi)))
goto stop;

+ if (!__get_victim(sbi, &segno, gc_type))
+ goto stop;
+
if (gc_type == BG_GC && has_not_enough_free_secs(sbi, nfree)) {
gc_type = FG_GC;
write_checkpoint(sbi, &cpc);
}

- if (!__get_victim(sbi, &segno, gc_type))
- goto stop;
ret = 0;

/* readahead multi ssa blocks those have contiguous address */
--
2.1.1

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