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yaml
---
r: 164386
b: refs/heads/master
c: b35ea17
h: refs/heads/master
v: v3
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KOSAKI Motohiro authored and Linus Torvalds committed Sep 22, 2009
1 parent 4a305ad commit c98d765
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Showing 2 changed files with 19 additions and 13 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 44c241f166b31999482c3c40448f4bbb2157a804
refs/heads/master: b35ea17b7bbf5dea35faa0de11030acc620c3197
30 changes: 18 additions & 12 deletions trunk/mm/vmscan.c
Original file line number Diff line number Diff line change
Expand Up @@ -1076,6 +1076,20 @@ static unsigned long shrink_inactive_list(unsigned long max_scan,
nr_taken = sc->isolate_pages(sc->swap_cluster_max,
&page_list, &nr_scan, sc->order, mode,
zone, sc->mem_cgroup, 0, file);

if (scanning_global_lru(sc)) {
zone->pages_scanned += nr_scan;
if (current_is_kswapd())
__count_zone_vm_events(PGSCAN_KSWAPD, zone,
nr_scan);
else
__count_zone_vm_events(PGSCAN_DIRECT, zone,
nr_scan);
}

if (nr_taken == 0)
goto done;

nr_active = clear_active_flags(&page_list, count);
__count_vm_events(PGDEACTIVATE, nr_active);

Expand All @@ -1088,8 +1102,6 @@ static unsigned long shrink_inactive_list(unsigned long max_scan,
__mod_zone_page_state(zone, NR_INACTIVE_ANON,
-count[LRU_INACTIVE_ANON]);

if (scanning_global_lru(sc))
zone->pages_scanned += nr_scan;

reclaim_stat->recent_scanned[0] += count[LRU_INACTIVE_ANON];
reclaim_stat->recent_scanned[0] += count[LRU_ACTIVE_ANON];
Expand Down Expand Up @@ -1123,18 +1135,12 @@ static unsigned long shrink_inactive_list(unsigned long max_scan,
}

nr_reclaimed += nr_freed;

local_irq_disable();
if (current_is_kswapd()) {
__count_zone_vm_events(PGSCAN_KSWAPD, zone, nr_scan);
if (current_is_kswapd())
__count_vm_events(KSWAPD_STEAL, nr_freed);
} else if (scanning_global_lru(sc))
__count_zone_vm_events(PGSCAN_DIRECT, zone, nr_scan);

__count_zone_vm_events(PGSTEAL, zone, nr_freed);

if (nr_taken == 0)
goto done;

spin_lock(&zone->lru_lock);
/*
* Put back any unfreeable pages.
Expand Down Expand Up @@ -1164,9 +1170,9 @@ static unsigned long shrink_inactive_list(unsigned long max_scan,
}
}
} while (nr_scanned < max_scan);
spin_unlock(&zone->lru_lock);

done:
local_irq_enable();
spin_unlock_irq(&zone->lru_lock);
pagevec_release(&pvec);
return nr_reclaimed;
}
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