linux-kernel - [PATCH 3/4] f2fs: avoid gc in cp

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Date:   Wed, 21 Sep 2016 20:54:57 -0700
From:   Jaegeuk Kim <jaegeuk@...nel.org>
To:     linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net
Cc:     Jaegeuk Kim <jaegeuk@...nel.org>
Subject: [PATCH 3/4] f2fs: avoid gc in cp_error case

Otherwise, we can hit
	f2fs_bug_on(sbi, !PageUptodate(sum_page));

Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>
---
 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 a9a3c9f..b9d6c42 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -847,7 +847,8 @@ static int do_garbage_collect(struct f2fs_sb_info *sbi,
 
 	for (segno = start_segno; segno < end_segno; segno++) {
 
-		if (get_valid_blocks(sbi, segno, 1) == 0)
+		if (get_valid_blocks(sbi, segno, 1) == 0 ||
+					unlikely(f2fs_cp_error(sbi)))
 			goto next;
 
 		/* find segment summary of victim */
-- 
2.8.3