From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754647AbcHVJEH (ORCPT ); Mon, 22 Aug 2016 05:04:07 -0400 Received: from Galois.linutronix.de ([146.0.238.70]:52547 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752226AbcHVJDw (ORCPT ); Mon, 22 Aug 2016 05:03:52 -0400 Date: Mon, 22 Aug 2016 11:01:05 +0200 (CEST) From: Thomas Gleixner To: Christoph Hellwig cc: Christoph Hellwig , linux-kernel@vger.kernel.org Subject: Re: [PATCH for-4.8] irq/affinity: use get/put_online_cpus In-Reply-To: <20160814160032.GA4601@infradead.org> Message-ID: References: <1470924405-25728-1-git-send-email-hch@lst.de> <20160814160032.GA4601@infradead.org> User-Agent: Alpine 2.20 (DEB 67 2015-01-07) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 14 Aug 2016, Christoph Hellwig wrote: > Any chance to get a quick review for this and get it off to Linus? > Without this fix the function is unusable in 4.8+ on my test systems > because we seem to always get a inconsistent view of the cpu online > bitmap - something that didn't happen before this merge window oddly > enough. That only happens if you have concurrent cpu hotplug operations, but yes this needs to be fixed anyway. Thanks, tglx