From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S941696AbcKQRTu (ORCPT ); Thu, 17 Nov 2016 12:19:50 -0500 Received: from merlin.infradead.org ([205.233.59.134]:43496 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S941663AbcKQRTc (ORCPT ); Thu, 17 Nov 2016 12:19:32 -0500 Date: Thu, 17 Nov 2016 13:08:25 +0100 From: Peter Zijlstra To: Boqun Feng Cc: "H. Peter Anvin" , Arnd Bergmann , linux-kernel@vger.kernel.org, tglx@linutronix.de, will.deacon@arm.com, dave@progbits.org, keescook@chromium.org, mingo@kernel.org, elena.reshetova@intel.com, gregkh@linuxfoundation.org Subject: Re: [RFC][PATCH 7/7] kref: Implement using refcount_t Message-ID: <20161117120825.GI3142@twins.programming.kicks-ass.net> References: <20161114173946.501528675@infradead.org> <20161114174446.832175072@infradead.org> <20161115123337.GD12110@tardis.cn.ibm.com> <20161115130154.GX3117@twins.programming.kicks-ass.net> <20161115141909.GJ27541@tardis.cn.ibm.com> <20161117092800.GD3142@twins.programming.kicks-ass.net> <20161117094851.GA5227@tardis.cn.ibm.com> <20161117102959.GH3142@twins.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23.1 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Nov 17, 2016 at 06:54:32PM +0800, Boqun Feng wrote: > > If our freshly allocated object got trampled by stores in free(), that's the > problem of allocator and free(), right? Because in that case, it's them who > mess up the synchronization. > Oh right, duh.