linux-kernel - [PATCH] f2fs: do not change the valid_block value if cur_valid

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Date:   Wed, 2 Aug 2017 22:16:54 +0800
From:   Yunlong Song <yunlong.song@...wei.com>
To:     <jaegeuk@...nel.org>, <chao@...nel.org>, <yuchao0@...wei.com>,
        <yunlong.song@...oud.com>, <yunlong.song@...wei.com>
CC:     <miaoxie@...wei.com>, <bintian.wang@...wei.com>,
        <linux-fsdevel@...r.kernel.org>,
        <linux-f2fs-devel@...ts.sourceforge.net>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] f2fs: do not change the valid_block value if cur_valid_map was wrongly set or cleared

Signed-off-by: Yunlong Song <yunlong.song@...wei.com>
---
 fs/f2fs/segment.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 40e40c5..9e3249a 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1540,6 +1540,8 @@ static void update_sit_entry(struct f2fs_sb_info *sbi, block_t blkaddr, int del)
 			f2fs_msg(sbi->sb, KERN_ERR,
 				"Bitmap was wrongly set, blk:%u", blkaddr);
 			f2fs_bug_on(sbi, 1);
+			se->valid_blocks--;
+			del = 0;
 		}
 
 		if (f2fs_discard_en(sbi) &&
@@ -1567,6 +1569,8 @@ static void update_sit_entry(struct f2fs_sb_info *sbi, block_t blkaddr, int del)
 			f2fs_msg(sbi->sb, KERN_ERR,
 				"Bitmap was wrongly cleared, blk:%u", blkaddr);
 			f2fs_bug_on(sbi, 1);
+			se->valid_blocks++;
+			del = 0;
 		}
 
 		if (f2fs_discard_en(sbi) &&
-- 
1.8.5.2