From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757554AbaAHVcK (ORCPT ); Wed, 8 Jan 2014 16:32:10 -0500 Received: from merlin.infradead.org ([205.233.59.134]:43620 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757076AbaAHVcI (ORCPT ); Wed, 8 Jan 2014 16:32:08 -0500 Message-ID: <52CDC3A3.5050203@kernel.dk> Date: Wed, 08 Jan 2014 14:31:15 -0700 From: Jens Axboe User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 MIME-Version: 1.0 To: Christoph Hellwig CC: linux-kernel@vger.kernel.org Subject: Re: [PATCH] blk-mq: use __smp_call_function_single directly References: <20140108173337.GA29514@infradead.org> In-Reply-To: <20140108173337.GA29514@infradead.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 01/08/2014 10:33 AM, Christoph Hellwig wrote: > __smp_call_function_single already avoids multiple IPIs by internally > queing up the items, and now also is available for non-SMP builds as > a trivially correct stub, so there is no need to wrap it. If the > additional lock roundtrip cause problems my patch to convert the > generic IPI code to llists is waiting to get merged will fix it. Thanks Christoph, applied it. -- Jens Axboe