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setup_per_zone_pages_min(): take zone->lock instead of zone->lru_lock 

This replaces zone->lru_lock in setup_per_zone_pages_min() with zone->lock.
There seems to be no need for the lru_lock anymore, but there is a need for
zone->lock instead, because that function may call move_freepages() via
setup_zone_migrate_reserve().

Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Tested-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Gerald Schaefer 2008-10-18 20:27:11 -07:00 committed by Linus Torvalds
parent 4b2e38ad70
commit 1125b4e394
1 changed files with 2 additions and 2 deletions
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4
mm/page_alloc.c
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@ -4242,7 +4242,7 @@ void setup_per_zone_pages_min(void)
for_each_zone(zone) {
u64 tmp;
spin_lock_irqsave(&zone->lru_lock, flags);
spin_lock_irqsave(&zone->lock, flags);
tmp = (u64)pages_min * zone->present_pages;
do_div(tmp, lowmem_pages);
if (is_highmem(zone)) {
@ -4274,7 +4274,7 @@ void setup_per_zone_pages_min(void)
zone->pages_low = zone->pages_min + (tmp >> 2);
zone->pages_high = zone->pages_min + (tmp >> 1);
setup_zone_migrate_reserve(zone);
spin_unlock_irqrestore(&zone->lru_lock, flags);
spin_unlock_irqrestore(&zone->lock, flags);
}
/* update totalreserve_pages */