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| author | Nick Piggin <npiggin@suse.de> | 2006-03-22 00:08:33 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-22 07:54:01 -0800 |
| commit | 0f8053a509ceba4a077a50ea7b77039b5559b428 (patch) | |
| tree | 5a66021540395e20256f38a3a45174617428a832 /mm/internal.h | |
| parent | 4fa4f53bf92139595cae6f1a3d972fc0a3451d29 (diff) | |
| download | lwn-0f8053a509ceba4a077a50ea7b77039b5559b428.tar.gz lwn-0f8053a509ceba4a077a50ea7b77039b5559b428.zip | |
[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.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/mm/internal.h b/mm/internal.h index 17256bb2f4ef..e3042db2a2d6 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 |