diff options
| author | Lee Schermerhorn <lee.schermerhorn@hp.com> | 2008-10-18 20:26:53 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-20 08:52:31 -0700 |
| commit | af936a1606246a10c145feac3770f6287f483f02 (patch) | |
| tree | 8b1ca7fabb5c749ffdecd654519889c6c2ed2fb6 /drivers/base/node.c | |
| parent | 64d6519dda3905dfb94d3f93c07c5f263f41813f (diff) | |
vmscan: unevictable LRU scan sysctl
This patch adds a function to scan individual or all zones' unevictable
lists and move any pages that have become evictable onto the respective
zone's inactive list, where shrink_inactive_list() will deal with them.
Adds sysctl to scan all nodes, and per node attributes to individual
nodes' zones.
Kosaki: If evictable page found in unevictable lru when write
/proc/sys/vm/scan_unevictable_pages, print filename and file offset of
these pages.
[akpm@linux-foundation.org: fix one CONFIG_MMU=n build error]
[kosaki.motohiro@jp.fujitsu.com: adapt vmscan-unevictable-lru-scan-sysctl.patch to new sysfs API]
Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com>
Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/base/node.c')
| -rw-r--r-- | drivers/base/node.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/base/node.c b/drivers/base/node.c index fb45d88a244..f5207090885 100644 --- a/drivers/base/node.c +++ b/drivers/base/node.c @@ -13,6 +13,7 @@ #include <linux/nodemask.h> #include <linux/cpu.h> #include <linux/device.h> +#include <linux/swap.h> static struct sysdev_class node_class = { .name = "node", @@ -191,6 +192,8 @@ int register_node(struct node *node, int num, struct node *parent) sysdev_create_file(&node->sysdev, &attr_meminfo); sysdev_create_file(&node->sysdev, &attr_numastat); sysdev_create_file(&node->sysdev, &attr_distance); + + scan_unevictable_register_node(node); } return error; } @@ -210,6 +213,8 @@ void unregister_node(struct node *node) sysdev_remove_file(&node->sysdev, &attr_numastat); sysdev_remove_file(&node->sysdev, &attr_distance); + scan_unevictable_unregister_node(node); + sysdev_unregister(&node->sysdev); } |