From owner-freebsd-current@FreeBSD.ORG Mon May 15 17:11:32 2006 Return-Path: X-Original-To: current@FreeBSD.org Delivered-To: freebsd-current@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 86B0016B0A7; Mon, 15 May 2006 17:11:32 +0000 (UTC) (envelope-from ivoras@fer.hr) Received: from lara.cc.fer.hr (lara.cc.fer.hr [161.53.72.113]) by mx1.FreeBSD.org (Postfix) with ESMTP id DA65A43D77; Mon, 15 May 2006 17:11:29 +0000 (GMT) (envelope-from ivoras@fer.hr) Received: from [127.0.0.1] (localhost.cc.fer.hr [127.0.0.1]) by lara.cc.fer.hr (8.13.6/8.13.4) with ESMTP id k4FHBFgU015921; Mon, 15 May 2006 19:11:15 +0200 (CEST) (envelope-from ivoras@fer.hr) Message-ID: <4468B633.90905@fer.hr> Date: Mon, 15 May 2006 19:11:15 +0200 From: Ivan Voras User-Agent: Mozilla Thunderbird 1.0.6 (X11/20050921) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Maxim Sobolev References: <44681D92.80309@sippysoft.com> <4468AA73.9000702@fer.hr> <4468B3C8.8010707@FreeBSD.org> In-Reply-To: <4468B3C8.8010707@FreeBSD.org> Content-Type: text/plain; charset=KOI8-U; format=flowed Content-Transfer-Encoding: 7bit Cc: "current@freebsd.org" Subject: Re: Optional mmap(2) support for geom(4) providers X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 15 May 2006 17:11:33 -0000 Maxim Sobolev wrote: > I am not sure that I understand what do you mean. In the case of md(4) > mmap makes huge sense, since for preloaded images your disk in fact is > just range of kernel memory, so that doing mmap is trivial. You're right. I was thinking of making mmap() of "raw" devices possible (like it is in Linux), but I see that it would be extremely nontrivial :) (block devices on Linux...)