Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756110AbZDNOfb (ORCPT ); Tue, 14 Apr 2009 10:35:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752634AbZDNOfU (ORCPT ); Tue, 14 Apr 2009 10:35:20 -0400 Received: from mx2.redhat.com ([66.187.237.31]:59272 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751300AbZDNOfT (ORCPT ); Tue, 14 Apr 2009 10:35:19 -0400 Date: Tue, 14 Apr 2009 16:32:52 +0200 From: Andrea Arcangeli To: Nick Piggin Cc: KOSAKI Motohiro , LKML , Linus Torvalds , Andrew Morton , Jeff Moyer , linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, Hugh Dickins Subject: Re: [RFC][PATCH v3 1/6] mm: Don't unmap gup()ed page Message-ID: <20090414143252.GE28265@random.random> References: <20090414151204.C647.A69D9226@jp.fujitsu.com> <2f11576a0904140639l426e137ewdc46296cdb377dd@mail.gmail.com> <20090414141209.GB31644@random.random> <200904150026.36142.nickpiggin@yahoo.com.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200904150026.36142.nickpiggin@yahoo.com.au> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 672 Lines: 15 On Wed, Apr 15, 2009 at 12:26:34AM +1000, Nick Piggin wrote: > Andrea: I didn't veto that set_bit change of yours as such. I just I know you didn't ;) > noted there could be more atomic operations. Actually I would > welcome more comparison between our two approaches, but they seem Agree about the welcome of comparison, it'd be nice to measure it the enterprise workloads that showed the gup_fast gain in the first place. -- 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/