diff options
| author | Christoph Lameter <clameter@sgi.com> | 2006-06-30 01:55:34 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-30 11:25:34 -0700 |
| commit | 65ba55f500a37272985d071c9bbb35256a2f7c14 (patch) | |
| tree | e7735326ef2d2dca9d00a6c5ae47e9eb03c7834f /arch | |
| parent | 2244b95a7bcf8d24196f8a3a44187ba5dfff754c (diff) | |
[PATCH] zoned vm counters: convert nr_mapped to per zone counter
nr_mapped is important because it allows a determination of how many pages of
a zone are not mapped, which would allow a more efficient means of determining
when we need to reclaim memory in a zone.
We take the nr_mapped field out of the page state structure and define a new
per zone counter named NR_FILE_MAPPED (the anonymous pages will be split off
from NR_MAPPED in the next patch).
We replace the use of nr_mapped in various kernel locations. This avoids the
looping over all processors in try_to_free_pages(), writeback, reclaim (swap +
zone reclaim).
[akpm@osdl.org: bugfix]
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/i386/mm/pgtable.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/i386/mm/pgtable.c b/arch/i386/mm/pgtable.c index 2889567e21a..f85f1a40e5c 100644 --- a/arch/i386/mm/pgtable.c +++ b/arch/i386/mm/pgtable.c @@ -61,7 +61,7 @@ void show_mem(void) get_page_state(&ps); printk(KERN_INFO "%lu pages dirty\n", ps.nr_dirty); printk(KERN_INFO "%lu pages writeback\n", ps.nr_writeback); - printk(KERN_INFO "%lu pages mapped\n", ps.nr_mapped); + printk(KERN_INFO "%lu pages mapped\n", global_page_state(NR_FILE_MAPPED)); printk(KERN_INFO "%lu pages slab\n", ps.nr_slab); printk(KERN_INFO "%lu pages pagetables\n", ps.nr_page_table_pages); } |