Messages in this thread Patch in this message | | | Subject | [PATCH] setup_per_zone_pages_min(): take zone->lock instead of zone->lru_lock | From | Gerald Schaefer <> | Date | Wed, 01 Oct 2008 19:39:32 +0200 |
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From: Gerald Schaefer <gerald.schaefer@de.ibm.com>
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>
--- mm/page_alloc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
Index: linux-2.6/mm/page_alloc.c =================================================================== --- linux-2.6.orig/mm/page_alloc.c +++ linux-2.6/mm/page_alloc.c @@ -4207,7 +4207,7 @@ 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)) { @@ -4239,7 +4239,7 @@ 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 */
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