there's a small typo in nfsd_acceptable.  It calls

	err = permission(parent->d_inode, S_IXOTH, NULL);

It really wants to use MAY_EXEC instead of S_IXOTH.  Those happen to be the
same at the moment, but may not do so forever.

From: Olaf Kirch <okir@suse.de>:
From: "J. Bruce Fields" <bfields@fieldses.org>
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>