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authorDarrick J. Wong <djwong@kernel.org>2021-12-22 14:19:18 -0800
committerDarrick J. Wong <djwong@kernel.org>2021-12-22 14:19:18 -0800
commit983d8e60f50806f90534cc5373d0ce867e5aaf79 (patch)
tree46c024d77d514ea47e4af91e4314cd29e67deeab
parent2585cf9dfaaddf00b069673f27bb3f8530e2039c (diff)
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: 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>
-rw-r--r--fs/xfs/xfs_ioctl.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 174cd8950cb6..bc85e045845d 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -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;
}