From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755882Ab2FDDxw (ORCPT ); Sun, 3 Jun 2012 23:53:52 -0400 Received: from mail-lpp01m010-f46.google.com ([209.85.215.46]:40886 "EHLO mail-lpp01m010-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755774Ab2FDDxv (ORCPT ); Sun, 3 Jun 2012 23:53:51 -0400 Message-ID: <4FCC3151.1040503@gmail.com> Date: Mon, 04 Jun 2012 07:53:53 +0400 From: George Shuklin User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.4) Gecko/20120510 Icedove/10.0.4 MIME-Version: 1.0 To: Al Viro CC: linux-kernel Subject: Re: Why minor is still 8 bit? References: <4FCC0E6D.9000206@gmail.com> <20120604013504.GU30000@ZenIV.linux.org.uk> In-Reply-To: <20120604013504.GU30000@ZenIV.linux.org.uk> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 04.06.2012 05:35, Al Viro wrote: > On Mon, Jun 04, 2012 at 05:25:01AM +0400, George Shuklin wrote: >> I've understand that major and minor numbers for device is 8-bit size. >> >> I've don't understand, WHY? In 2012! >> >> (I've just have some discussion about 8-bit counter limitations in >> context of cloud computing. In middle of 2012!!!!) > Yes, shocking. It's been several years and you are still using that > buzzword; I mean, it's _so_ 2010... Should've moved on to whatever's > in this year... > > Incidentally, minors are 20 bit and majors are 12, but don't let that > stand in the way of righteous indignation - what's mere facts when > one is having discussions in context, presumably leveraging synergies > all along... Ok, thank you for information. But question is almost same: can I have 30k active logical volumes on my single server, please?