Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753225AbZIYIzT (ORCPT ); Fri, 25 Sep 2009 04:55:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753121AbZIYIzR (ORCPT ); Fri, 25 Sep 2009 04:55:17 -0400 Received: from bombadil.infradead.org ([18.85.46.34]:47239 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753159AbZIYIzQ (ORCPT ); Fri, 25 Sep 2009 04:55:16 -0400 Subject: Re: [PATCH 2/2 v2] optimize for perf_event_init_task() From: Peter Zijlstra To: Xiao Guangrong Cc: Ingo Molnar , Paul Mackerras , LKML In-Reply-To: <4ABC5AF9.6060808@cn.fujitsu.com> References: <4AB88F06.10900@cn.fujitsu.com> <19128.39768.149110.673711@cargo.ozlabs.ibm.com> <4AB98BB0.6020202@cn.fujitsu.com> <19129.38627.94363.857137@cargo.ozlabs.ibm.com> <4AB9D7FA.5040707@cn.fujitsu.com> <1253695230.7695.122.camel@twins> <4ABC5A55.7000208@cn.fujitsu.com> <4ABC5AF9.6060808@cn.fujitsu.com> Content-Type: text/plain Content-Transfer-Encoding: 7bit Date: Fri, 25 Sep 2009 10:55:57 +0200 Message-Id: <1253868957.10287.5.camel@twins> Mime-Version: 1.0 X-Mailer: Evolution 2.26.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 611 Lines: 17 On Fri, 2009-09-25 at 13:54 +0800, Xiao Guangrong wrote: > We can traverse ctx->group_list to get all group leader, it should be safe > since we hold ctx->mutex > > Changlog v1->v2: > - remove WARN_ON_ONCE() as Peter Zijlstra's suggestion > > Signed-off-by: Xiao Guangrong Thanks! Acked-by: Peter Zijlstra -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/