Commit 983d8e60 authored by Darrick J. Wong's avatar Darrick J. Wong
Browse files

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



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: default avatarKirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: default avatarDarrick J. Wong <djwong@kernel.org>
Signed-off-by: default avatarDarrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: default avatarDave Chinner <dchinner@redhat.com>
Reviewed-by: default avatarEric Sandeen <sandeen@redhat.com>
parent 2585cf9d

fs/xfs/xfs_ioctl.c

+2 −1
Original line number Diff line number Diff line
@@ -687,7 +687,8 @@ xfs_ioc_space( 


	if (bf->l_start > XFS_ISIZE(ip)) {

		error = xfs_alloc_file_space(ip, XFS_ISIZE(ip),

				bf->l_start - XFS_ISIZE(ip), 0);

				bf->l_start - XFS_ISIZE(ip),

				XFS_BMAPI_PREALLOC);

		if (error)

			goto out_unlock;

	}