Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755871AbbEFHgp (ORCPT ); Wed, 6 May 2015 03:36:45 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:47214 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750978AbbEFHgm (ORCPT ); Wed, 6 May 2015 03:36:42 -0400 Date: Wed, 6 May 2015 00:36:40 -0700 From: Christoph Hellwig To: Ming Lei Cc: Tejun Heo , Jens Axboe , Linux Kernel Mailing List , "Justin M. Forbes" , Jeff Moyer , Christoph Hellwig , "v4.0" Subject: Re: [PATCH 2/2] block: loop: avoiding too many pending per work I/O Message-ID: <20150506073640.GA19532@infradead.org> References: <1430826595-5888-1-git-send-email-ming.lei@canonical.com> <1430826595-5888-3-git-send-email-ming.lei@canonical.com> <20150505135958.GO1971@htj.duckdns.org> <20150505165541.GV1971@htj.duckdns.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 559 Lines: 11 On Wed, May 06, 2015 at 01:17:33PM +0800, Ming Lei wrote: > But I still prefer to dio/aio approach because double cache can > be avoided, which is a big win in my previous tests. Can yo respin and resend the patches? With Al's iov_iter work and my kiocb changes it should be fairly easy and non-intrusive to do. -- 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/