From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932300Ab0JLMId (ORCPT ); Tue, 12 Oct 2010 08:08:33 -0400 Received: from casper.infradead.org ([85.118.1.10]:50145 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932068Ab0JLMIc convert rfc822-to-8bit (ORCPT ); Tue, 12 Oct 2010 08:08:32 -0400 Subject: Re: [PATCH] dma: get_user_pages -> get_user_pages_fast From: Peter Zijlstra To: "Michael S. Tsirkin" Cc: Dan Williams , Tejun Heo , linux-kernel@vger.kernel.org In-Reply-To: <20101012115257.GA24389@redhat.com> References: <20101011165310.GA5122@redhat.com> <1286818496.1998.43.camel@laptop> <20101012115257.GA24389@redhat.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT Date: Tue, 12 Oct 2010 14:08:24 +0200 Message-ID: <1286885304.29097.41.camel@twins> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2010-10-12 at 13:52 +0200, Michael S. Tsirkin wrote: > We probably should set a limit on the number of pages, too: > currently there could be a large # of very small chunks in the iovec. Well, there's also the gup_fast batch stuff that I keep forgetting to push: http://lkml.org/lkml/2009/6/24/457 Which would solve that part.