xfs: clean up the error handling in xfs_swap_extents
authorDarrick J. Wong <darrick.wong@oracle.com>
Mon, 4 May 2020 21:06:27 +0000 (14:06 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 22 Jun 2020 07:05:15 +0000 (09:05 +0200)
commitc69572fd2ae04ca8f44336a0d602decf3ab3b689
treea6d9ab9e6100af7fcfb646eaa72be282a2dcdec7
parenta8696209ca848f38f0ab6d22d9636479a0dfea2c
xfs: clean up the error handling in xfs_swap_extents

[ Upstream commit 8bc3b5e4b70d28f8edcafc3c9e4de515998eea9e ]

Make sure we release resources properly if we cannot clean out the COW
extents in preparation for an extent swap.

Fixes: 96987eea537d6c ("xfs: cancel COW blocks before swapext")
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
fs/xfs/xfs_bmap_util.c