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Memoryless nodes: Add N_CPU node state

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We need the check for a node with cpu in zone reclaim.  Zone reclaim will not
allow remote zone reclaim if a node has a cpu.

[[email protected]: Move setup of N_CPU node state mask]
Signed-off-by: Christoph Lameter <[email protected]>
Tested-by:  Lee Schermerhorn <[email protected]>
Acked-by: Bob Picco <[email protected]>
Cc: Nishanth Aravamudan <[email protected]>
Cc: KAMEZAWA Hiroyuki <[email protected]>
Cc: Mel Gorman <[email protected]>
Signed-off-by: Lee Schermerhorn <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Christoph Lameter 2007-10-16 01:25:36 -07:00 • committed by Linus Torvalds
commit 37c0708dbe
3 changed files with 6 additions and 4 deletions
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4
mm/vmscan.c
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@ -1853,7 +1853,6 @@ static int __zone_reclaim(struct zone *zone, gfp_t gfp_mask, unsigned int order)
int zone_reclaim(struct zone *zone, gfp_t gfp_mask, unsigned int order)
{
cpumask_t mask;
int node_id;
/*
@ -1890,8 +1889,7 @@ int zone_reclaim(struct zone *zone, gfp_t gfp_mask, unsigned int order)
* as wide as possible.
*/
node_id = zone_to_nid(zone);
mask = node_to_cpumask(node_id);
if (!cpus_empty(mask) && node_id != numa_node_id())
if (node_state(node_id, N_CPU) && node_id != numa_node_id())
return 0;
return __zone_reclaim(zone, gfp_mask, order);
}