[PATCH 2/2] powerpc/perf/imc: use NUMA_NO_NODE for alloc_pages_node

[Madhavan Srinivasan]

alloc_pages_node() when passed NUMA_NO_NODE for the
node_id, could get memory from closest node. Cleanup
core imc and thread imc memory init functions to use
NUMA_NO_NODE.

Signed-off-by: Madhavan Srinivasan <maddy at linux.vnet.ibm.com>
---
 arch/powerpc/perf/imc-pmu.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/arch/powerpc/perf/imc-pmu.c b/arch/powerpc/perf/imc-pmu.c
index 88d1415e2547..897098fb2a31 100644
--- a/arch/powerpc/perf/imc-pmu.c
+++ b/arch/powerpc/perf/imc-pmu.c
@@ -524,19 +524,18 @@ static int nest_imc_event_init(struct perf_event *event)
  */
 static int core_imc_mem_init(int cpu, int size)
 {
-	int nid, rc = 0, core_id = (cpu / threads_per_core);
+	int rc = 0, core_id = (cpu / threads_per_core);
 	struct imc_mem_info *mem_info;
 
 	/*
 	 * alloc_pages_node() will allocate memory for core in the
 	 * local node only.
 	 */
-	nid = cpu_to_node(cpu);
 	mem_info = &core_imc_pmu->mem_info[core_id];
 	mem_info->id = core_id;
 
 	/* We need only vbase for core counters */
-	mem_info->vbase = page_address(alloc_pages_node(nid,
+	mem_info->vbase = page_address(alloc_pages_node(NUMA_NO_NODE,
 					  GFP_KERNEL | __GFP_ZERO | __GFP_THISNODE |
 					  __GFP_NOWARN, get_order(size)));
 	if (!mem_info->vbase)
@@ -783,14 +782,13 @@ static int core_imc_event_init(struct perf_event *event)
 static int thread_imc_mem_alloc(int cpu_id, int size)
 {
 	u64 ldbar_value, *local_mem = per_cpu(thread_imc_mem, cpu_id);
-	int nid = cpu_to_node(cpu_id);
 
 	if (!local_mem) {
 		/*
 		 * This case could happen only once at start, since we dont
 		 * free the memory in cpu offline path.
 		 */
-		local_mem = page_address(alloc_pages_node(nid,
+		local_mem = page_address(alloc_pages_node(NUMA_NO_NODE,
 				  GFP_KERNEL | __GFP_ZERO | __GFP_THISNODE |
 				  __GFP_NOWARN, get_order(size)));
 		if (!local_mem)
-- 
2.7.4