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authorNick Piggin <npiggin@suse.de>2006-03-22 00:08:33 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-22 07:54:01 -0800
commit0f8053a509ceba4a077a50ea7b77039b5559b428 (patch)
tree5a66021540395e20256f38a3a45174617428a832 /mm/internal.h
parent4fa4f53bf92139595cae6f1a3d972fc0a3451d29 (diff)
downloadvexpress-lsk-0f8053a509ceba4a077a50ea7b77039b5559b428.tar.gz
[PATCH] mm: make __put_page internal
Remove __put_page from outside the core mm/. It is dangerous because it does not handle compound pages nicely, and misses 1->0 transitions. If a user later appears that really needs the extra speed we can reevaluate. Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/internal.h')
-rw-r--r--mm/internal.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/mm/internal.h b/mm/internal.h
index 17256bb2f4e..e3042db2a2d 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -8,6 +8,10 @@
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
+#ifndef __MM_INTERNAL_H
+#define __MM_INTERNAL_H
+
+#include <linux/mm.h>
static inline void set_page_refs(struct page *page, int order)
{
@@ -26,5 +30,12 @@ static inline void set_page_refs(struct page *page, int order)
#endif /* CONFIG_MMU */
}
+static inline void __put_page(struct page *page)
+{
+ atomic_dec(&page->_count);
+}
+
extern void fastcall __init __free_pages_bootmem(struct page *page,
unsigned int order);
+
+#endif