[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>
diff --git a/include/linux/dmapool.h b/include/linux/dmapool.h
index 4932ee5..76f12f4 100644
--- a/include/linux/dmapool.h
+++ b/include/linux/dmapool.h
@@ -19,7 +19,7 @@
 
 void dma_pool_destroy(struct dma_pool *pool);
 
-void *dma_pool_alloc(struct dma_pool *pool, unsigned int __nocast mem_flags,
+void *dma_pool_alloc(struct dma_pool *pool, gfp_t mem_flags,
 		     dma_addr_t *handle);
 
 void dma_pool_free(struct dma_pool *pool, void *vaddr, dma_addr_t addr);