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/mmzone.h | |
| parent | 1d2652dd2c3e942e75dc3137b3cb1774b43ae377 (diff) | |
[PATCH] hot-n-cold pages: page allocator core
Hot/Cold pages and zone->lock amortisation
Diffstat (limited to 'include/linux/mmzone.h')
| -rw-r--r-- | include/linux/mmzone.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 10c4ee968020..d80490b1265c 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -9,6 +9,7 @@ #include <linux/list.h> #include <linux/wait.h> #include <linux/cache.h> +#include <linux/threads.h> #include <asm/atomic.h> #ifdef CONFIG_DISCONTIGMEM #include <asm/numnodes.h> @@ -46,6 +47,18 @@ struct zone_padding { #define ZONE_PADDING(name) #endif +struct per_cpu_pages { + int count; /* number of pages in the list */ + int low; /* low watermark, refill needed */ + int high; /* high watermark, emptying needed */ + int batch; /* chunk size for buddy add/remove */ + struct list_head list; /* the list of pages */ +}; + +struct per_cpu_pageset { + struct per_cpu_pages pcp[2]; /* 0: hot. 1: cold */ +} ____cacheline_aligned_in_smp; + /* * On machines where it is needed (eg PCs) we divide physical memory * into multiple physical zones. On a PC we have 3 zones: @@ -107,6 +120,10 @@ struct zone { unsigned long wait_table_size; unsigned long wait_table_bits; + ZONE_PADDING(_pad3_) + + struct per_cpu_pageset pageset[NR_CPUS]; + /* * Discontig memory support fields. */ |