ovl: wire up NFS export operations

Now that NFS export operations are implemented, enable overlayfs NFS
export support if the "nfs_export" feature is enabled.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index fccdcfae68e9..9ee37c76091d 100644
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -1331,6 +1331,9 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
                 }
         }
 
+        if (ofs->config.nfs_export)
+                sb->s_export_op = &ovl_export_operations;
+
         /* Never override disk quota limits or use reserved space */
         cap_lower(cred->cap_effective, CAP_SYS_RESOURCE);