From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754751AbZBRMIf (ORCPT ); Wed, 18 Feb 2009 07:08:35 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753671AbZBRMFu (ORCPT ); Wed, 18 Feb 2009 07:05:50 -0500 Received: from hera.kernel.org ([140.211.167.34]:50753 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753593AbZBRMFl (ORCPT ); Wed, 18 Feb 2009 07:05:41 -0500 From: Tejun Heo To: rusty@rustcorp.com.au, tglx@linutronix.de, x86@kernel.org, linux-kernel@vger.kernel.org, hpa@zytor.com, jeremy@goop.org, cpw@sgi.com, mingo@elte.hu Cc: Christoph Lameter , Jens Axboe Subject: [PATCH 05/10] alloc_percpu: add align argument to __alloc_percpu. Date: Wed, 18 Feb 2009 21:04:31 +0900 Message-Id: <1234958676-27618-6-git-send-email-tj@kernel.org> X-Mailer: git-send-email 1.6.0.2 In-Reply-To: <1234958676-27618-1-git-send-email-tj@kernel.org> References: <1234958676-27618-1-git-send-email-tj@kernel.org> X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.0 (hera.kernel.org [127.0.0.1]); Wed, 18 Feb 2009 12:05:03 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Rusty Russell This prepares for a real __alloc_percpu, by adding an alignment argument. Only one place uses __alloc_percpu directly, and that's for a string. tj: af_inet also uses __alloc_percpu(), update it. Signed-off-by: Rusty Russell Cc: Christoph Lameter Cc: Jens Axboe --- block/blktrace.c | 2 +- include/linux/percpu.h | 5 +++-- net/ipv4/af_inet.c | 4 ++-- 3 files changed, 6 insertions(+), 5 deletions(-) diff --git a/block/blktrace.c b/block/blktrace.c index 39cc3bf..4877662 100644 --- a/block/blktrace.c +++ b/block/blktrace.c @@ -363,7 +363,7 @@ int do_blk_trace_setup(struct request_queue *q, char *name, dev_t dev, if (!bt->sequence) goto err; - bt->msg_data = __alloc_percpu(BLK_TN_MAX_MSG); + bt->msg_data = __alloc_percpu(BLK_TN_MAX_MSG, __alignof__(char)); if (!bt->msg_data) goto err; diff --git a/include/linux/percpu.h b/include/linux/percpu.h index c80cfe1..1fdaee9 100644 --- a/include/linux/percpu.h +++ b/include/linux/percpu.h @@ -108,9 +108,10 @@ static inline void percpu_free(void *__pdata) /* (legacy) interface for use without CPU hotplug handling */ -#define __alloc_percpu(size) percpu_alloc_mask((size), GFP_KERNEL, \ +#define __alloc_percpu(size, align) percpu_alloc_mask((size), GFP_KERNEL, \ cpu_possible_map) -#define alloc_percpu(type) (type *)__alloc_percpu(sizeof(type)) +#define alloc_percpu(type) (type *)__alloc_percpu(sizeof(type), \ + __alignof__(type)) #define free_percpu(ptr) percpu_free((ptr)) /* * Use this to get to a cpu's version of the per-cpu object dynamically diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index 743f554..3a3dad8 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -1375,10 +1375,10 @@ EXPORT_SYMBOL_GPL(snmp_fold_field); int snmp_mib_init(void *ptr[2], size_t mibsize) { BUG_ON(ptr == NULL); - ptr[0] = __alloc_percpu(mibsize); + ptr[0] = __alloc_percpu(mibsize, __alignof__(unsigned long long)); if (!ptr[0]) goto err0; - ptr[1] = __alloc_percpu(mibsize); + ptr[1] = __alloc_percpu(mibsize, __alignof__(unsigned long long)); if (!ptr[1]) goto err1; return 0; -- 1.6.0.2