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Unevictable LRU Page Statistics

Browse source 
Report unevictable pages per zone and system wide.

Kosaki Motohiro added support for memory controller unevictable
statistics.

[[email protected]: fix printk in show_free_areas()]
[[email protected]: fix units in /proc/vmstats]
Signed-off-by: Lee Schermerhorn <[email protected]>
Signed-off-by: Rik van Riel <[email protected]>
Signed-off-by: KOSAKI Motohiro <[email protected]>
Debugged-by: Hiroshi Shimamoto <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Lee Schermerhorn 2008-10-18 20:26:40 -07:00 • committed by Linus Torvalds
commit 7b854121eb
5 changed files with 37 additions and 2 deletions
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6
mm/memcontrol.c
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@ -1006,6 +1006,7 @@ static int mem_control_stat_show(struct cgroup *cont, struct cftype *cft,
{
unsigned long active_anon, inactive_anon;
unsigned long active_file, inactive_file;
unsigned long unevictable;
inactive_anon = mem_cgroup_get_all_zonestat(mem_cont,
LRU_INACTIVE_ANON);
@ -1015,10 +1016,15 @@ static int mem_control_stat_show(struct cgroup *cont, struct cftype *cft,
LRU_INACTIVE_FILE);
active_file = mem_cgroup_get_all_zonestat(mem_cont,
LRU_ACTIVE_FILE);
unevictable = mem_cgroup_get_all_zonestat(mem_cont,
LRU_UNEVICTABLE);
cb->fill(cb, "active_anon", (active_anon) * PAGE_SIZE);
cb->fill(cb, "inactive_anon", (inactive_anon) * PAGE_SIZE);
cb->fill(cb, "active_file", (active_file) * PAGE_SIZE);
cb->fill(cb, "inactive_file", (inactive_file) * PAGE_SIZE);
cb->fill(cb, "unevictable", unevictable * PAGE_SIZE);
}
return 0;
}