From: cl@linux-foundation.org
To: linux-kernel@vger.kernel.org
Cc: Tejun Heo <tj@kernel.org>, Huang Ying <ying.huang@intel.com>
Cc: mingo@elte.hu
Cc: rusty@rustcorp.com.au
Cc: davem@davemloft.net
Subject: [this_cpu_xx 08/11] Use this_cpu_ptr in crypto subsystem
Date: Fri, 05 Jun 2009 15:18:27 -0400 [thread overview]
Message-ID: <20090605191851.776993582@gentwo.org> (raw)
In-Reply-To: <20090605191819.376530498@gentwo.org>
[-- Attachment #1: this_cpu_ptr_crypto --]
[-- Type: text/plain, Size: 912 bytes --]
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.
Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Christoph Lameter <cl@linux-foundation.org>
---
crypto/cryptd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux-2.6/crypto/cryptd.c
===================================================================
--- linux-2.6.orig/crypto/cryptd.c 2009-05-27 11:55:20.000000000 -0500
+++ linux-2.6/crypto/cryptd.c 2009-05-27 11:56:55.000000000 -0500
@@ -93,7 +93,7 @@ static int cryptd_enqueue_request(struct
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();
--
next prev parent reply other threads:[~2009-06-05 22:29 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-05 19:18 [this_cpu_xx 00/11] Introduce this_cpu_xx operations cl
2009-06-05 19:18 ` [this_cpu_xx 01/11] Introduce this_cpu_ptr() and generic this_cpu_* operations cl
2009-06-10 5:12 ` Tejun Heo
2009-06-11 15:10 ` Christoph Lameter
2009-06-12 2:09 ` Tejun Heo
2009-06-12 14:18 ` Christoph Lameter
2009-06-17 8:09 ` Tejun Heo
2009-06-17 8:19 ` Tejun Heo
2009-06-17 18:41 ` Christoph Lameter
2009-06-18 1:08 ` Tejun Heo
2009-06-18 3:01 ` Rusty Russell
2009-06-05 19:18 ` [this_cpu_xx 02/11] Use this_cpu operations for SNMP statistics cl
2009-06-05 19:18 ` [this_cpu_xx 03/11] Use this_cpu operations for NFS statistics cl
2009-06-05 19:18 ` [this_cpu_xx 04/11] Use this_cpu ops for network statistics cl
2009-06-08 11:27 ` Robin Holt
2009-06-08 20:49 ` Christoph Lameter
2009-06-08 20:54 ` Ingo Molnar
2009-06-05 19:18 ` [this_cpu_xx 05/11] this_cpu_ptr: Straight transformations cl
2009-06-05 19:18 ` [this_cpu_xx 06/11] Eliminate get/put_cpu cl
2009-06-05 19:34 ` Dan Williams
2009-06-09 14:02 ` Sosnowski, Maciej
2009-06-05 19:18 ` [this_cpu_xx 07/11] xfs_icsb_modify_counters does not need "cpu" variable cl
2009-06-05 19:22 ` Christoph Hellwig
2009-06-05 19:36 ` Christoph Lameter
2009-06-05 19:18 ` cl [this message]
2009-06-05 19:18 ` [this_cpu_xx 09/11] X86 optimized this_cpu operations cl
2009-06-05 19:18 ` [this_cpu_xx 10/11] Use this_cpu ops for vm statistics cl
2009-06-05 19:18 ` [this_cpu_xx 11/11] RCU: Use this_cpu operations cl
2009-06-10 17:42 ` Paul E. McKenney
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