diff options
| author | Andrew Morton <akpm@osdl.org> | 2006-06-23 02:03:47 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-23 07:42:52 -0700 |
| commit | bd1e22b8e0a90f9a91e4c27db14ca15773659bf7 (patch) | |
| tree | 8d32bdc39977af9dd3ba577b1fa34c0106b7f18e | |
| parent | e0a42726794f71336ff4b26084d453dd597471ce (diff) | |
[PATCH] initialise total_memory() earlier
Initialise total_memory earlier in boot. Because if for some reason we run
page reclaim early in boot, we don't want total_memory to be zero when we use
it as a divisor.
And rename total_memory to vm_total_pages to avoid naming clashes with
architectures.
Cc: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Martin Bligh <mbligh@google.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | include/linux/swap.h | 1 | ||||
| -rw-r--r-- | mm/page_alloc.c | 6 | ||||
| -rw-r--r-- | mm/vmscan.c | 5 |
3 files changed, 6 insertions, 6 deletions
diff --git a/include/linux/swap.h b/include/linux/swap.h index f1a827a972e..dc3f3aa0c83 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -185,6 +185,7 @@ extern unsigned long try_to_free_pages(struct zone **, gfp_t); extern unsigned long shrink_all_memory(unsigned long nr_pages); extern int vm_swappiness; extern int remove_mapping(struct address_space *mapping, struct page *page); +extern long vm_total_pages; #ifdef CONFIG_NUMA extern int zone_reclaim_mode; diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 5af33186a25..71a0b2a23f5 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1725,9 +1725,9 @@ void __meminit build_all_zonelists(void) stop_machine_run(__build_all_zonelists, NULL, NR_CPUS); /* cpuset refresh routine should be here */ } - - printk("Built %i zonelists\n", num_online_nodes()); - + vm_total_pages = nr_free_pagecache_pages(); + printk("Built %i zonelists. Total pages: %ld\n", + num_online_nodes(), vm_total_pages); } /* diff --git a/mm/vmscan.c b/mm/vmscan.c index 71a02e29503..72babac71de 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -110,7 +110,7 @@ struct shrinker { * From 0 .. 100. Higher means more swappy. */ int vm_swappiness = 60; -static long total_memory; +long vm_total_pages; /* The total number of pages which the VM controls */ static LIST_HEAD(shrinker_list); static DECLARE_RWSEM(shrinker_rwsem); @@ -743,7 +743,7 @@ static void shrink_active_list(unsigned long nr_pages, struct zone *zone, * how much memory * is mapped. */ - mapped_ratio = (sc->nr_mapped * 100) / total_memory; + mapped_ratio = (sc->nr_mapped * 100) / vm_total_pages; /* * Now decide how much we really want to unmap some pages. The @@ -1482,7 +1482,6 @@ static int __init kswapd_init(void) pgdat->kswapd = find_task_by_pid(pid); read_unlock(&tasklist_lock); } - total_memory = nr_free_pagecache_pages(); hotcpu_notifier(cpu_callback, 0); return 0; } |