tree 4d1f918b2c2806b4078e48edd95ced6c958ae91d
parent 81a438db33116bb51f39f2bf087fce45abfc5c68
author Darrick J. Wong <djwong@kernel.org> 1640211558 -0800
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1641904692 +0100

xfs: map unwritten blocks in XFS_IOC_{ALLOC,FREE}SP just like fallocate

commit 983d8e60f50806f90534cc5373d0ce867e5aaf79 upstream.

The old ALLOCSP/FREESP ioctls in XFS can be used to preallocate space at
the end of files, just like fallocate and RESVSP.  Make the behavior
consistent with the other ioctls.

Reported-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>