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>

diff --git a/fs/xfs/scrub/xfile.c b/fs/xfs/scrub/xfile.c
index 090c3ead43fdf1d244a053fb46a2831a8c39b9b6..1cf4b239bdbbd7cf362248a4cde388804d61dd3b 100644 (file)
--- a/fs/xfs/scrub/xfile.c
+++ b/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)) {