NFS: Fix up nfs_post_op_update_inode() to force ctime updates

We do not want to ignore ctime updates that originate from functions
such as link().

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>

fs/nfs/inode.c

@@ -1633,7 +1633,8 @@ int nfs_post_op_update_inode(struct inode *inode, struct nfs_fattr *fattr)
 	nfs_fattr_set_barrier(fattr);
 	status = nfs_post_op_update_inode_locked(inode, fattr,
 			NFS_INO_INVALID_CHANGE
-			| NFS_INO_INVALID_CTIME);
+			| NFS_INO_INVALID_CTIME
+			| NFS_INO_REVAL_FORCED);
 	spin_unlock(&inode->i_lock);
 
 	return status;