stable inclusion
from linux-4.19.160
commit d88cc6f344a2b4a8095a0c8f392b4fa632707276

--------------------------------

[ Upstream commit 498fe261 ]

We always know the correct state of the rmap record flags (attr, bmbt,
unwritten) so check them by direct comparison.

Fixes: d852657c ("xfs: cross-reference reverse-mapping btree")
Signed-off-by: NDarrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: NChandan Babu R <chandanrlinux@gmail.com>
Reviewed-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NSasha Levin <sashal@kernel.org>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: NCheng Jian <cj.chengjian@huawei.com>