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yaml
---
r: 16316
b: refs/heads/master
c: 77a8a78
h: refs/heads/master
v: v3
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Nick Piggin authored and Linus Torvalds committed Jan 6, 2006
1 parent 9c4abde commit 847e5ec
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Showing 3 changed files with 18 additions and 20 deletions.
2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: c54ad30c784b84d0275152d0ca80985b21471811
refs/heads/master: 77a8a78834561398fb4cb1480afa7b0e80b1dd53
19 changes: 17 additions & 2 deletions trunk/mm/internal.h
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Expand Up @@ -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 changes: 0 additions & 17 deletions trunk/mm/page_alloc.c
Original file line number Diff line number Diff line change
Expand Up @@ -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
*/
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