Darrick J. Wong 5880a0d1c8 xfs: don't free rt blocks when we're doing a REMAP bunmapi call
[ Upstream commit 8df0fa39bdd86ca81a8d706a6ed9d33cc65ca625 ]

When callers pass XFS_BMAPI_REMAP into xfs_bunmapi, they want the extent
to be unmapped from the given file fork without the extent being freed.
We do this for non-rt files, but we forgot to do this for realtime
files.  So far this isn't a big deal since nobody makes a bunmapi call
to a rt file with the REMAP flag set, but don't leave a logic bomb.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-05 11:43:18 +01:00
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