Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752378AbaDVGm6 (ORCPT ); Tue, 22 Apr 2014 02:42:58 -0400 Received: from mail-ig0-f170.google.com ([209.85.213.170]:46468 "EHLO mail-ig0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750756AbaDVGm4 (ORCPT ); Tue, 22 Apr 2014 02:42:56 -0400 MIME-Version: 1.0 In-Reply-To: <20140422060654.GB9133@gmail.com> References: <1398144517-9496-1-git-send-email-nasa4836@gmail.com> <20140422060654.GB9133@gmail.com> From: Jianyu Zhan Date: Tue, 22 Apr 2014 14:42:16 +0800 Message-ID: Subject: Re: [PATCH] perf-event/cgroup: explicitly init the early_init field To: Ingo Molnar Cc: a.p.zijlstra@chello.nl, paulus@samba.org, mingo@redhat.com, acme@kernel.org, LKML Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Apr 22, 2014 at 2:06 PM, Ingo Molnar wrote: > How can that field ever be nonzero? > > I.e. under what exact circumstances does this patch make sense? Hi, Ingo, For cpuset subsystem, this filed is nonzero; for other subsystems, this is zero. Actually none of these subsystem will change this field, I just thought that this is a little subtle. as the comment in patches says, this is mainly for document reason to inform other maintainers that css_alloc implementation should be taken care of , depending on this field is zero or not. Thanks, Jianyu Zhan -- 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/