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authorChristoph Lameter <clameter@sgi.com>2006-06-30 01:55:34 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-30 11:25:34 -0700
commit65ba55f500a37272985d071c9bbb35256a2f7c14 (patch)
treee7735326ef2d2dca9d00a6c5ae47e9eb03c7834f /fs
parent2244b95a7bcf8d24196f8a3a44187ba5dfff754c (diff)
downloadop-kernel-dev-65ba55f500a37272985d071c9bbb35256a2f7c14.zip
op-kernel-dev-65ba55f500a37272985d071c9bbb35256a2f7c14.tar.gz
[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 'fs')
-rw-r--r--fs/proc/proc_misc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
index 5c10ea1..bc7d9ab 100644
--- a/fs/proc/proc_misc.c
+++ b/fs/proc/proc_misc.c
@@ -190,7 +190,7 @@ static int meminfo_read_proc(char *page, char **start, off_t off,
K(i.freeswap),
K(ps.nr_dirty),
K(ps.nr_writeback),
- K(ps.nr_mapped),
+ K(global_page_state(NR_FILE_MAPPED)),
K(ps.nr_slab),
K(allowed),
K(committed),
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