linux-kernel - [PATCH 3/3] f2fs: fix to check f2fs_compressed_file() in f2fs

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Date:   Fri, 27 Mar 2020 18:29:53 +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 3/3] f2fs: fix to check f2fs_compressed_file() in f2fs_bmap()

Otherwise, for compressed inode, returned physical block address
may be wrong.

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

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 24643680489b..f22f3ba10a48 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -3591,6 +3591,8 @@ static sector_t f2fs_bmap(struct address_space *mapping, sector_t block)
 
 	if (f2fs_has_inline_data(inode))
 		return 0;
+	if (f2fs_compressed_file(inode))
+		return 0;
 
 	/* make sure allocating whole blocks */
 	if (mapping_tagged(mapping, PAGECACHE_TAG_DIRTY))
-- 
2.18.0.rc1