[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>

drivers/atm/ambassador.c

@@ -795,7 +795,7 @@ static void drain_rx_pools (amb_dev * dev) {
 }
 
 static inline void fill_rx_pool (amb_dev * dev, unsigned char pool,
-                                 unsigned int __nocast priority)
+                                 gfp_t priority)
 {
   rx_in rx;
   amb_rxq * rxq;

drivers/atm/firestream.c

@@ -1374,8 +1374,7 @@ static void reset_chip (struct fs_dev *dev)
 	}
 }
 
-static void __devinit *aligned_kmalloc (int size, unsigned int __nocast flags,
-					int alignment)
+static void __devinit *aligned_kmalloc (int size, gfp_t flags, int alignment)
 {
 	void  *t;
 
@@ -1466,7 +1465,7 @@ static inline int nr_buffers_in_freepool (struct fs_dev *dev, struct freepool *f
    working again after that...  -- REW */
 
 static void top_off_fp (struct fs_dev *dev, struct freepool *fp,
-			unsigned int __nocast gfp_flags)
+			gfp_t gfp_flags)
 {
 	struct FS_BPENTRY *qe, *ne;
 	struct sk_buff *skb;

drivers/atm/fore200e.c

@@ -178,7 +178,7 @@ fore200e_irq_itoa(int irq)
 
 
 static void*
-fore200e_kmalloc(int size, unsigned int __nocast flags)
+fore200e_kmalloc(int size, gfp_t flags)
 {
     void *chunk = kzalloc(size, flags);