[PATCH] gfp flags annotations - part 1

- added typedef unsigned int __nocast gfp_t;

 - replaced __nocast uses for gfp flags with gfp_t - it gives exactly
   the same warnings as far as sparse is concerned, doesn't change
   generated code (from gcc point of view we replaced unsigned int with
   typedef) and documents what's going on far better.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

net/llc/llc_conn.c

@@ -867,8 +867,7 @@ static void llc_sk_init(struct sock* sk)
  *	Allocates a LLC sock and initializes it. Returns the new LLC sock
  *	or %NULL if there's no memory available for one
  */
-struct sock *llc_sk_alloc(int family, unsigned int __nocast priority,
-			 struct proto *prot)
+struct sock *llc_sk_alloc(int family, gfp_t priority, struct proto *prot)
 {
 	struct sock *sk = sk_alloc(family, priority, prot, 1);