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Commit 90ab3373 authored by Chao Yu's avatar Chao Yu Committed by Greg Kroah-Hartman
Browse files

f2fs: fix to initialize map.m_pblk in f2fs_precache_extents() 



[ Upstream commit 8b07c1fb0f1ad139373c8253f2fad8bc43fab07d ]

Otherwise, it may print random physical block address in tracepoint
of f2fs_map_blocks() as below:

f2fs_map_blocks: dev = (253,16), ino = 2297, file offset = 0, start blkaddr = 0xa356c421, len = 0x0, flags = 0

Fixes: c4020b2d ("f2fs: support F2FS_IOC_PRECACHE_EXTENTS")
Signed-off-by: default avatarChao Yu <chao@kernel.org>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 9f20b062

fs/f2fs/file.c

+1 −0
Original line number Diff line number Diff line
@@ -3117,6 +3117,7 @@ int f2fs_precache_extents(struct inode *inode) 
		return -EOPNOTSUPP;



	map.m_lblk = 0;

	map.m_pblk = 0;

	map.m_next_pgofs = NULL;

	map.m_next_extent = &m_next_extent;

	map.m_seg_type = NO_CHECK_TYPE;