xfs: use VM_NORESERVE in xfile_create

xfile_create creates a (potentially large) sparse file.  Pass
VM_NORESERVE to shmem_file_setup to not account for the entire file size
at file creation time.
Reported-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>

fs/xfs/scrub/xfile.c

@@ -68,7 +68,7 @@ xfile_create(
 	if (!xf)
 		return -ENOMEM;
 
-	xf->file = shmem_file_setup(description, isize, 0);
+	xf->file = shmem_file_setup(description, isize, VM_NORESERVE);
 	if (!xf->file)
 		goto out_xfile;
 	if (IS_ERR(xf->file)) {