Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933626AbZDBBif (ORCPT ); Wed, 1 Apr 2009 21:38:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757021AbZDBBiS (ORCPT ); Wed, 1 Apr 2009 21:38:18 -0400 Received: from hera.kernel.org ([140.211.167.34]:45158 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756310AbZDBBiQ (ORCPT ); Wed, 1 Apr 2009 21:38:16 -0400 Message-ID: <49D41729.4030407@kernel.org> Date: Thu, 02 Apr 2009 10:38:49 +0900 From: Tejun Heo User-Agent: Thunderbird 2.0.0.19 (X11/20081227) MIME-Version: 1.0 To: Boaz Harrosh CC: axboe@kernel.dk, linux-kernel@vger.kernel.org, fujita.tomonori@lab.ntt.co.jp Subject: Re: [PATCH 08/17] bio: reimplement bio_copy_user_iov() References: <1238593472-30360-1-git-send-email-tj@kernel.org> <1238593472-30360-9-git-send-email-tj@kernel.org> <49D38D4B.7020701@panasas.com> In-Reply-To: <49D38D4B.7020701@panasas.com> X-Enigmail-Version: 0.95.7 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.0 (hera.kernel.org [127.0.0.1]); Thu, 02 Apr 2009 01:38:09 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 526 Lines: 19 Hello, Boaz. Boaz Harrosh wrote: > Please consider that this code-path is used by me, in exofs and > pNFS-objcets in a very very hot path, where memory pressure is a > common scenario. One quick question. Don't the above paths map kernel pages to a request? Thanks. -- tejun -- 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/