Potential fixup....
Allocations to ZONE_NORMAL may fall back to ZONE_DMA and ZONE_DMA32
so we must allow calling shrinkers for these zones as well.
Signed-off-by: Christoph Lameter <cl@xxxxxxxxx>
---
mm/vmscan.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
Index: linux-2.6/mm/vmscan.c
===================================================================
--- linux-2.6.orig/mm/vmscan.c 2010-10-21 13:23:32.000000000 -0500
+++ linux-2.6/mm/vmscan.c 2010-10-21 13:23:53.000000000 -0500
@@ -2219,7 +2219,7 @@ loop_again:
8*high_wmark_pages(zone), end_zone, 0))
shrink_zone(priority, zone, &sc);
- if (zone_idx(zone) == ZONE_NORMAL) {
+ if (zone_idx(zone) <= ZONE_NORMAL) {
reclaim_state->reclaimed_slab = 0;
nr_slab = shrink_slab(sc.nr_scanned, GFP_KERNEL,
lru_pages);
@@ -2704,7 +2704,7 @@ static int __zone_reclaim(struct zone *z
nr_slab_pages0 = zone_page_state(zone, NR_SLAB_RECLAIMABLE);
if (nr_slab_pages0 > zone->min_slab_pages &&
- zone_idx(zone) == ZONE_NORMAL) {
+ zone_idx(zone) <= ZONE_NORMAL) {
/*
* shrink_slab() does not currently allow us to determine how
* many pages were freed in this zone. So we take the current
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