linux-kernel - [PATCH 4/5] f2fs: fix to check dirty pages during compressed inode conversion

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Message-ID: <20200310125009.12966-4-yuchao0@huawei.com>
Date:   Tue, 10 Mar 2020 20:50:08 +0800
From:   Chao Yu <yuchao0@...wei.com>
To:     <jaegeuk@...nel.org>
CC:     <linux-f2fs-devel@...ts.sourceforge.net>,
        <linux-kernel@...r.kernel.org>, <chao@...nel.org>,
        Chao Yu <yuchao0@...wei.com>
Subject: [PATCH 4/5] f2fs: fix to check dirty pages during compressed inode conversion

Compressed cluster can be generated during dirty data writeback,
if there is dirty pages on compressed inode, it needs to disable
converting compressed inode to non-compressed one.

Signed-off-by: Chao Yu <yuchao0@...wei.com>
---
 fs/f2fs/f2fs.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 5ba6c2382c32..76d2a99520bf 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -3854,6 +3854,8 @@ static inline u64 f2fs_disable_compressed_file(struct inode *inode)
 
 	if (!f2fs_compressed_file(inode))
 		return 0;
+	if (get_dirty_pages(inode))
+		return 1;
 	if (fi->i_compr_blocks)
 		return fi->i_compr_blocks;
 
-- 
2.18.0.rc1