mm, numa: avoid setting zone_reclaim_mode unless a node is sufficient…

…ly distant Commit 957f822 ("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. Signed-off-by: David Rientjes <[email protected]> Reported-by: Julian Wollrath <[email protected]> Tested-by: Julian Wollrath <[email protected]> Cc: Hugh Dickins <[email protected]> Cc: Patrik Kullman <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
mrcsosa · Oct 25, 2012 · 6b187d0 · 6b187d0
1 parent f230250
commit 6b187d0
Showing 1 changed file with 2 additions and 2 deletions.
diff --git 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 */