A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 03:27:44 -04:00
Code Issues Projects Releases Packages Wiki Activity

memcg: add zone_reclaim_stat

Browse source 
Introduce mem_cgroup_per_zone::reclaim_stat member and its statics
collecting function.

Now, get_scan_ratio() can calculate correct value on memcg reclaim.

[[email protected]: avoid reclaim_stat oops when disabled]
Acked-by: KAMEZAWA Hiroyuki <[email protected]>
Acked-by: Rik van Riel <[email protected]>
Signed-off-by: KOSAKI Motohiro <[email protected]>
Cc: Balbir Singh <[email protected]>
Cc: Daisuke Nishimura <[email protected]>
Cc: Hugh Dickins <[email protected]>
Cc: KOSAKI Motohiro <[email protected]>
Signed-off-by: Hugh Dickins <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
KOSAKI Motohiro 2009-01-07 18:08:20 -08:00 • committed by Linus Torvalds
commit 3e2f41f1f6
4 changed files with 83 additions and 23 deletions
Download patch file Download diff file Expand all files Collapse all files

34
mm/swap.c
View file

@ -151,13 +151,32 @@ void rotate_reclaimable_page(struct page *page)
}
}
static void update_page_reclaim_stat(struct zone *zone, struct page *page,
int file, int rotated)
{
struct zone_reclaim_stat *reclaim_stat = &zone->reclaim_stat;
struct zone_reclaim_stat *memcg_reclaim_stat;
memcg_reclaim_stat = mem_cgroup_get_reclaim_stat_from_page(page);
reclaim_stat->recent_scanned[file]++;
if (rotated)
reclaim_stat->recent_rotated[file]++;
if (!memcg_reclaim_stat)
return;
memcg_reclaim_stat->recent_scanned[file]++;
if (rotated)
memcg_reclaim_stat->recent_rotated[file]++;
}
/*
* FIXME: speed this up?
*/
void activate_page(struct page *page)
{
struct zone *zone = page_zone(page);
struct zone_reclaim_stat *reclaim_stat = &zone->reclaim_stat;
spin_lock_irq(&zone->lru_lock);
if (PageLRU(page) && !PageActive(page) && !PageUnevictable(page)) {
@ -170,8 +189,7 @@ void activate_page(struct page *page)
add_page_to_lru_list(zone, page, lru);
__count_vm_event(PGACTIVATE);
reclaim_stat->recent_rotated[!!file]++;
reclaim_stat->recent_scanned[!!file]++;
update_page_reclaim_stat(zone, page, !!file, 1);
}
spin_unlock_irq(&zone->lru_lock);
}
@ -386,7 +404,6 @@ void ____pagevec_lru_add(struct pagevec *pvec, enum lru_list lru)
{
int i;
struct zone *zone = NULL;
struct zone_reclaim_stat *reclaim_stat = NULL;
VM_BUG_ON(is_unevictable_lru(lru));
@ -394,24 +411,23 @@ void ____pagevec_lru_add(struct pagevec *pvec, enum lru_list lru)
struct page *page = pvec->pages[i];
struct zone *pagezone = page_zone(page);
int file;
int active;
if (pagezone != zone) {
if (zone)
spin_unlock_irq(&zone->lru_lock);
zone = pagezone;
reclaim_stat = &zone->reclaim_stat;
spin_lock_irq(&zone->lru_lock);
}
VM_BUG_ON(PageActive(page));
VM_BUG_ON(PageUnevictable(page));
VM_BUG_ON(PageLRU(page));
SetPageLRU(page);
active = is_active_lru(lru);
file = is_file_lru(lru);
reclaim_stat->recent_scanned[file]++;
if (is_active_lru(lru)) {
if (active)
SetPageActive(page);
reclaim_stat->recent_rotated[file]++;
}
update_page_reclaim_stat(zone, page, file, active);
add_page_to_lru_list(zone, page, lru);
}
if (zone)