stop passing nameidata to ->lookup()

Just the flags; only NFS cares even about that, but there are
legitimate uses for such argument.  And getting rid of that
completely would require splitting ->lookup() into a couple
of methods (at least), so let's leave that alone for now...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/sysv/namei.c b/fs/sysv/namei.c
index d7466e2..a8c4359 100644
--- a/fs/sysv/namei.c
+++ b/fs/sysv/namei.c
@@ -43,7 +43,7 @@
 	.d_hash		= sysv_hash,
 };
 
-static struct dentry *sysv_lookup(struct inode * dir, struct dentry * dentry, struct nameidata *nd)
+static struct dentry *sysv_lookup(struct inode * dir, struct dentry * dentry, unsigned int flags)
 {
 	struct inode * inode = NULL;
 	ino_t ino;