this_cpu: Use this_cpu_ptr in crypto subsystem

Just a slight optimization that removes one array lookup. The processor number is needed for other things as well so the get/put_cpu cannot be removed. Acked-by: Tejun Heo <tj@kernel.org> Cc: Huang Ying <ying.huang@intel.com> Signed-off-by: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Tejun Heo <tj@kernel.org>

this_cpu: Use this_cpu_ptr in crypto subsystem
Just a slight optimization that removes one array lookup. The processor number is needed for other things as well so the get/put_cpu cannot be removed. Acked-by: Tejun Heo <tj@kernel.org> Cc: Huang Ying <ying.huang@intel.com> Signed-off-by: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Tejun Heo <tj@kernel.org>
Christoph Lameter · Tejun Heo
1 parent 7a9e02d6bb
Showing 1 changed file with 1 additions and 1 deletions Side-by-side Diff
crypto/cryptd.c
@@ -99,7 +99,7 @@
 	struct cryptd_cpu_queue *cpu_queue;
  
 	cpu = get_cpu();
-	cpu_queue = per_cpu_ptr(queue->cpu_queue, cpu);
+	cpu_queue = this_cpu_ptr(queue->cpu_queue);
 	err = crypto_enqueue_request(&cpu_queue->queue, request);
 	queue_work_on(cpu, kcrypto_wq, &cpu_queue->work);
 	put_cpu();
...	...	@@ -99,7 +99,7 @@
99	99	struct cryptd_cpu_queue *cpu_queue;
100	100
101	101	cpu = get_cpu();
102		- cpu_queue = per_cpu_ptr(queue->cpu_queue, cpu);
	102	+ cpu_queue = this_cpu_ptr(queue->cpu_queue);
103	103	err = crypto_enqueue_request(&cpu_queue->queue, request);
104	104	queue_work_on(cpu, kcrypto_wq, &cpu_queue->work);
105	105	put_cpu();