diff options
| author | Andrew Morton <akpm@digeo.com> | 2002-10-29 23:35:53 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@penguin.transmeta.com> | 2002-10-29 23:35:53 -0800 |
| commit | a206231bbe6ffb988cdf9fcbdfd98e49abaf4819 (patch) | |
| tree | 640f23350e83ff491f5cc970e79e9cd619704f6f /include/linux/gfp.h | |
| parent | 1d2652dd2c3e942e75dc3137b3cb1774b43ae377 (diff) | |
[PATCH] hot-n-cold pages: page allocator core
Hot/Cold pages and zone->lock amortisation
Diffstat (limited to 'include/linux/gfp.h')
| -rw-r--r-- | include/linux/gfp.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/include/linux/gfp.h b/include/linux/gfp.h index c340b447a963..8e093813e4f7 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -17,6 +17,7 @@ #define __GFP_IO 0x40 /* Can start low memory physical IO? */ #define __GFP_HIGHIO 0x80 /* Can start high mem physical IO? */ #define __GFP_FS 0x100 /* Can call down to low-level FS? */ +#define __GFP_COLD 0x200 /* Cache-cold page required */ #define GFP_NOHIGHIO ( __GFP_WAIT | __GFP_IO) #define GFP_NOIO ( __GFP_WAIT) @@ -32,6 +33,7 @@ #define GFP_DMA __GFP_DMA + /* * There is only one page-allocator function, and two main namespaces to * it. The alloc_page*() variants return 'struct page *' and as such @@ -77,11 +79,10 @@ extern unsigned long FASTCALL(get_zeroed_page(unsigned int gfp_mask)); #define __get_dma_pages(gfp_mask, order) \ __get_free_pages((gfp_mask) | GFP_DMA,(order)) -/* - * There is only one 'core' page-freeing function. - */ extern void FASTCALL(__free_pages(struct page *page, unsigned int order)); extern void FASTCALL(free_pages(unsigned long addr, unsigned int order)); +extern void FASTCALL(free_hot_page(struct page *page)); +extern void FASTCALL(free_cold_page(struct page *page)); #define __free_page(page) __free_pages((page), 0) #define free_page(addr) free_pages((addr),0) |