Change log from v1:
- fix skipping gc incorrectly
>From 06f90d3757a6b7ff524cc112168488f31bbf830f Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
Date: Tue, 11 Aug 2015 21:59:49 -0700
Subject: [PATCH] f2fs: skip checkpoint if there is no dirty and prefree
segments
We should avoid needless checkpoints when there is no dirty and prefree segment.
Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
---
fs/f2fs/gc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index fcb263a..98bf538 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -811,7 +811,8 @@ gc_more:
if (gc_type == BG_GC && has_not_enough_free_secs(sbi, nfree)) {
gc_type = FG_GC;
- write_checkpoint(sbi, &cpc);
+ if (dirty_segments(sbi) || prefree_segments(sbi))
+ write_checkpoint(sbi, &cpc);
}
if (!__get_victim(sbi, &segno, gc_type))
--
2.1.1
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