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

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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>

...

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Darrick J. Wong 2021-12-22 14:19:18 -08:00

parent 2585cf9dfa

commit 983d8e60f5

1 changed files with 2 additions and 1 deletions

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fs/xfs/xfs_ioctl.c

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