Re: More VM balancing issues..

[kanoj@google.engr.sgi.com (Kanoj Sarcar)]

And while you are at it, could you try this patch too. This "fixes"
the issues I pointed out earlier in the recent balancing patch. This
is against 2.3.99-pre1.

Thanks.

Kanoj

--- mm/page_alloc.c	Wed Mar 15 09:30:24 2000
+++ mm/page_alloc.c	Fri Mar 17 14:19:26 2000
@@ -148,8 +148,10 @@
 
 	spin_unlock_irqrestore(&zone->lock, flags);
 
-	if (classfree(zone) > zone->pages_high)
+	if (classfree(zone) > zone->pages_high) {
 		zone->zone_wake_kswapd = 0;
+		zone->low_on_memory = 0;
+	}
 }
 
 #define MARK_USED(index, order, area) \
@@ -269,8 +271,11 @@
 			{
 				extern wait_queue_head_t kswapd_wait;
 
-				z->zone_wake_kswapd = 1;
-				wake_up_interruptible(&kswapd_wait);
+				if (free <= z->pages_low) {
+					z->zone_wake_kswapd = 1;
+					wake_up_interruptible(&kswapd_wait);
+				} else
+					z->zone_wake_kswapd = 0;
 
 				if (free <= z->pages_min)
 					z->low_on_memory = 1;
--
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