From: cl@linux-foundation.org
To: akpm@linux-foundation.org
Cc: linux-mm@kvack.org, Huang Ying <ying.huang@intel.com>,
Tejun Heo <tj@kernel.org>,
mingo@elte.hu, rusty@rustcorp.com.au, davem@davemloft.net
Subject: [this_cpu_xx V2 09/19] Use this_cpu_ptr in crypto subsystem
Date: Wed, 17 Jun 2009 16:33:46 -0400 [thread overview]
Message-ID: <20090617203444.541329806@gentwo.org> (raw)
In-Reply-To: <20090617203337.399182817@gentwo.org>
[-- Attachment #1: this_cpu_ptr_crypto --]
[-- Type: text/plain, Size: 1138 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();
--
--
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next prev parent reply other threads:[~2009-06-17 23:57 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-17 20:33 [this_cpu_xx V2 00/19] Introduce this_cpu_xx operations cl
2009-06-17 20:33 ` [this_cpu_xx V2 01/19] Fix handling of pagesets for downed cpus cl
2009-06-17 20:33 ` [this_cpu_xx V2 02/19] Introduce this_cpu_ptr() and generic this_cpu_* operations cl
2009-06-18 1:50 ` Tejun Heo
2009-06-18 2:29 ` Tejun Heo
2009-06-18 13:54 ` Christoph Lameter
2009-06-18 14:49 ` Tejun Heo
2009-06-17 20:33 ` [this_cpu_xx V2 03/19] Use this_cpu operations for SNMP statistics cl
2009-06-18 1:55 ` Tejun Heo
2009-06-17 20:33 ` [this_cpu_xx V2 04/19] Use this_cpu operations for NFS statistics cl
2009-06-18 2:03 ` Tejun Heo
2009-06-17 20:33 ` [this_cpu_xx V2 05/19] use this_cpu ops for network statistics cl
2009-06-17 20:33 ` [this_cpu_xx V2 06/19] this_cpu_ptr: Straight transformations cl
2009-06-17 20:33 ` [this_cpu_xx V2 07/19] this_cpu_ptr: Elimninate get/put_cpu cl
2009-06-17 20:33 ` [this_cpu_xx V2 08/19] this_cpu_ptr: xfs_icsb_modify_counters does not need "cpu" variable cl
2009-06-17 20:33 ` cl [this message]
2009-06-17 20:33 ` [this_cpu_xx V2 10/19] this_cpu: X86 optimized this_cpu operations cl
2009-06-18 3:00 ` Tejun Heo
2009-06-18 14:07 ` Christoph Lameter
2009-06-18 14:48 ` Tejun Heo
2009-06-18 15:39 ` Christoph Lameter
2009-06-18 16:06 ` Tejun Heo
2009-06-18 16:15 ` Tejun Heo
2009-06-18 17:05 ` Christoph Lameter
2009-06-19 5:41 ` Rusty Russell
2009-06-23 18:00 ` Christoph Lameter
2009-06-17 20:33 ` [this_cpu_xx V2 11/19] Use this_cpu ops for VM statistics cl
2009-06-18 3:05 ` Tejun Heo
2009-06-17 20:33 ` [this_cpu_xx V2 12/19] RCU: Use this_cpu operations cl
2009-06-17 20:33 ` [this_cpu_xx V2 13/19] Use this_cpu operations in slub cl
2009-06-18 6:20 ` Pekka Enberg
2009-06-18 6:25 ` Pekka Enberg
2009-06-18 13:59 ` Christoph Lameter
2009-06-25 7:12 ` Pekka Enberg
2009-06-18 6:49 ` Tejun Heo
2009-06-18 7:35 ` Pekka Enberg
2009-06-18 13:59 ` Christoph Lameter
2009-06-25 7:11 ` Pekka Enberg
2009-06-17 20:33 ` [this_cpu_xx V2 14/19] this_cpu: Remove slub kmem_cache fields cl
2009-06-17 20:33 ` [this_cpu_xx V2 15/19] Make slub statistics use this_cpu_inc cl
2009-06-17 20:33 ` [this_cpu_xx V2 16/19] this_cpu: slub aggressive use of this_cpu operations in the hotpaths cl
2009-06-18 6:33 ` Pekka Enberg
2009-06-18 11:59 ` Mathieu Desnoyers
2009-06-18 14:00 ` Christoph Lameter
2009-06-17 20:33 ` [this_cpu_xx V2 17/19] Move early initialization of pagesets out of zone_wait_table_init() cl
2009-06-18 3:13 ` Tejun Heo
2009-06-17 20:33 ` [this_cpu_xx V2 18/19] this_cpu_ops: page allocator conversion cl
2009-06-17 20:33 ` [this_cpu_xx V2 19/19] this_cpu ops: Remove pageset_notifier cl
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