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[PATCH] mm: set_page_refs opt

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Inline set_page_refs.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Nick Piggin 2006-01-06 00:10:57 -08:00 committed by Linus Torvalds
parent c54ad30c78
commit 77a8a78834
2 changed files with 17 additions and 19 deletions
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19
mm/internal.h
View File

@ -9,5 +9,20 @@
* 2 of the License, or (at your option) any later version.
*/
/* page_alloc.c */
extern void set_page_refs(struct page *page, int order);
static inline void set_page_refs(struct page *page, int order)
{
#ifdef CONFIG_MMU
set_page_count(page, 1);
#else
int i;
/*
* We need to reference all the pages for this order, otherwise if
* anyone accesses one of the pages with (get/put) it will be freed.
* - eg: access_process_vm()
*/
for (i = 0; i < (1 << order); i++)
set_page_count(page + i, 1);
#endif /* CONFIG_MMU */
}

17
mm/page_alloc.c
View File

@ -453,23 +453,6 @@ expand(struct zone *zone, struct page *page,
return page;
}
void set_page_refs(struct page *page, int order)
{
#ifdef CONFIG_MMU
set_page_count(page, 1);
#else
int i;
/*
* We need to reference all the pages for this order, otherwise if
* anyone accesses one of the pages with (get/put) it will be freed.
* - eg: access_process_vm()
*/
for (i = 0; i < (1 << order); i++)
set_page_count(page + i, 1);
#endif /* CONFIG_MMU */
}
/*
* This page is about to be returned from the page allocator
*/