From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752836AbbAVB6R (ORCPT ); Wed, 21 Jan 2015 20:58:17 -0500 Received: from lgeamrelo02.lge.com ([156.147.1.126]:38031 "EHLO lgeamrelo02.lge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751894AbbAVB6F (ORCPT ); Wed, 21 Jan 2015 20:58:05 -0500 X-Original-SENDERIP: 10.177.222.153 X-Original-MAILFROM: iamjoonsoo.kim@lge.com Date: Thu, 22 Jan 2015 10:59:04 +0900 From: Joonsoo Kim To: Sasha Levin Cc: linux-kernel@vger.kernel.org, cl@linux.com, brouer@redhat.com, akpm@linux-foundation.org Subject: Re: [PATCH] mm/slub: use unchecked percpu access within preemptible sections Message-ID: <20150122015904.GF21444@js1304-P5Q-DELUXE> References: <1421814703-1869-1-git-send-email-sasha.levin@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1421814703-1869-1-git-send-email-sasha.levin@oracle.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jan 20, 2015 at 11:31:43PM -0500, Sasha Levin wrote: > Commit "mm/slub: optimize alloc/free fastpath by removing preemption on/off" > has added access to percpu memory while the code is preemptible. > > While those accesses are okay, this creates a huge amount of warnings from > the code that checks for that. > > Signed-off-by: Sasha Levin Hello, I already sent the patch to fix this issue and it is in mmotm, but, not be released yet. https://lkml.org/lkml/2015/1/19/17 Thanks.