[patch] sched, numa: Allocate node_queue on any node for offlinenodes

From: David Rientjes
Date: Wed May 23 2012 - 00:18:04 EST


struct node_queue must be allocated with NUMA_NO_NODE for nodes that are
not (yet) online, otherwise the page allocator has a bad zonelist and
results in an early crash.

Tested-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx>
---
kernel/sched/numa.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/kernel/sched/numa.c b/kernel/sched/numa.c
--- a/kernel/sched/numa.c
+++ b/kernel/sched/numa.c
@@ -885,7 +885,8 @@ static __init int numa_init(void)

for_each_node(node) {
struct node_queue *nq = kmalloc_node(sizeof(*nq),
- GFP_KERNEL | __GFP_ZERO, node);
+ GFP_KERNEL | __GFP_ZERO,
+ node_online(node) ? node : NUMA_NO_NODE);
BUG_ON(!nq);

spin_lock_init(&nq->lock);
--
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