From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756151Ab0IUON7 (ORCPT ); Tue, 21 Sep 2010 10:13:59 -0400 Received: from hera.kernel.org ([140.211.167.34]:46454 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756095Ab0IUON5 (ORCPT ); Tue, 21 Sep 2010 10:13:57 -0400 Date: Tue, 21 Sep 2010 14:13:26 GMT From: tip-bot for Peter Zijlstra Cc: linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@redhat.com, a.p.zijlstra@chello.nl, tj@kernel.org, tglx@linutronix.de, mingo@elte.hu Reply-To: mingo@redhat.com, hpa@zytor.com, linux-kernel@vger.kernel.org, a.p.zijlstra@chello.nl, tj@kernel.org, tglx@linutronix.de, mingo@elte.hu In-Reply-To: <20100917093009.252867712@chello.nl> References: <20100917093009.252867712@chello.nl> To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] percpu: Add {get,put}_cpu_ptr Message-ID: Git-Commit-ID: 8b8e2ec1eeca7f6941bc81cefc9663018d6ceb57 X-Mailer: tip-git-log-daemon MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.3 (hera.kernel.org [127.0.0.1]); Tue, 21 Sep 2010 14:13:26 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 8b8e2ec1eeca7f6941bc81cefc9663018d6ceb57 Gitweb: http://git.kernel.org/tip/8b8e2ec1eeca7f6941bc81cefc9663018d6ceb57 Author: Peter Zijlstra AuthorDate: Thu, 16 Sep 2010 19:21:28 +0200 Committer: Ingo Molnar CommitDate: Tue, 21 Sep 2010 13:55:43 +0200 percpu: Add {get,put}_cpu_ptr These are similar to {get,put}_cpu_var() except for dynamically allocated per-cpu memory. Signed-off-by: Peter Zijlstra Acked-by: Tejun Heo LKML-Reference: <20100917093009.252867712@chello.nl> Signed-off-by: Ingo Molnar --- include/linux/percpu.h | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-) diff --git a/include/linux/percpu.h b/include/linux/percpu.h index 49466b1..0eb5083 100644 --- a/include/linux/percpu.h +++ b/include/linux/percpu.h @@ -39,6 +39,15 @@ preempt_enable(); \ } while (0) +#define get_cpu_ptr(var) ({ \ + preempt_disable(); \ + this_cpu_ptr(var); }) + +#define put_cpu_ptr(var) do { \ + (void)(var); \ + preempt_enable(); \ +} while (0) + #ifdef CONFIG_SMP /* minimum unit size, also is the maximum supported allocation size */