->permission() sanitizing: don't pass flags to generic_permission()

redundant; all callers get it duplicated in mask & MAY_NOT_BLOCK and none of
them removes that bit.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index beb5d55..9c16974 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -1805,7 +1805,7 @@
 	err = ceph_do_getattr(inode, CEPH_CAP_AUTH_SHARED);
 
 	if (!err)
-		err = generic_permission(inode, mask, flags);
+		err = generic_permission(inode, mask);
 	return err;
 }