[PATCH] put_page() consolidation

Clean up put_page() and page_cache_release().  It's pretty simple now:

#define page_cache_get(page)           get_page(page)
#define page_cache_release(page)       put_page(page)

include/linux/mm.h

@@ -181,6 +181,12 @@ struct page {
 #endif /* CONFIG_HIGMEM || WANT_PAGE_VIRTUAL */
 };
 
+/*
+ * FIXME: take this include out, include page-flags.h in
+ * files which need it (119 of them)
+ */
+#include <linux/page-flags.h>
+
 /*
  * Methods to modify the page usage count.
  *
@@ -202,14 +208,16 @@ struct page {
 	})
 #define page_count(p)		atomic_read(&(p)->count)
 #define set_page_count(p,v) 	atomic_set(&(p)->count, v)
+
 extern void FASTCALL(__page_cache_release(struct page *));
-#define put_page(p)							\
-	do {								\
-		if (!PageReserved(p) && put_page_testzero(p))		\
-			__page_cache_release(p);			\
-	} while (0)
 void FASTCALL(__free_pages_ok(struct page *page, unsigned int order));
 
+static inline void put_page(struct page *page)
+{
+	if (!PageReserved(page) && put_page_testzero(page))
+		__page_cache_release(page);
+}
+
 /*
  * Multiple processes may "see" the same page. E.g. for untouched
  * mappings of /dev/null, all processes see the same page full of
@@ -259,12 +267,6 @@ void FASTCALL(__free_pages_ok(struct page *page, unsigned int order));
  *   to swap space and (later) to be read back into memory.
  */
 
-/*
- * FIXME: take this include out, include page-flags.h in
- * files which need it (119 of them)
- */
-#include <linux/page-flags.h>
-
 /*
  * The zone field is never updated after free_area_init_core()
  * sets it, so none of the operations on it need to be atomic.

include/linux/pagemap.h

@@ -22,13 +22,8 @@
 #define PAGE_CACHE_MASK		PAGE_MASK
 #define PAGE_CACHE_ALIGN(addr)	(((addr)+PAGE_CACHE_SIZE-1)&PAGE_CACHE_MASK)
 
-#define page_cache_get(x)	get_page(x)
-
-static inline void page_cache_release(struct page *page)
-{
-	if (!PageReserved(page) && put_page_testzero(page))
-		__page_cache_release(page);
-}
+#define page_cache_get(page)		get_page(page)
+#define page_cache_release(page)	put_page(page)
 
 static inline struct page *page_cache_alloc(struct address_space *x)
 {