Re: [patch for-3.7] mm, numa: avoid setting zone_reclaim_mode unless a node is sufficiently distant

2012-10-24 Thread Julian Wollrath
This patch fixes the problem for me, thank you. Feal free to add a 

Tested-by: Julian Wollrath 


With best regards,
Julian Wollrath
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[patch for-3.7] mm, numa: avoid setting zone_reclaim_mode unless a node is sufficiently distant

2012-10-23 Thread David Rientjes
Commit 957f822a0ab9 ("mm, numa: reclaim from all nodes within reclaim
distance") caused zone_reclaim_mode to be set for all systems where two
nodes are within RECLAIM_DISTANCE of each other.  This is the opposite of
what we actually want: zone_reclaim_mode should be set if two nodes are
sufficiently distant.

Reported-by: Julian Wollrath 
Signed-off-by: David Rientjes 
---
 mm/page_alloc.c |4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1809,10 +1809,10 @@ static void __paginginit init_zone_allows_reclaim(int 
nid)
int i;
 
for_each_online_node(i)
-   if (node_distance(nid, i) <= RECLAIM_DISTANCE) {
+   if (node_distance(nid, i) <= RECLAIM_DISTANCE)
node_set(i, NODE_DATA(nid)->reclaim_nodes);
+   else
zone_reclaim_mode = 1;
-   }
 }
 
 #else  /* CONFIG_NUMA */
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