From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760897Ab2FDQL0 (ORCPT ); Mon, 4 Jun 2012 12:11:26 -0400 Received: from nm24-vm0.access.bullet.mail.mud.yahoo.com ([66.94.236.143]:20840 "HELO nm24-vm0.access.bullet.mail.mud.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752297Ab2FDQLZ (ORCPT ); Mon, 4 Jun 2012 12:11:25 -0400 X-Yahoo-Newman-Id: 351936.77985.bm@smtp102.biz.mail.ne1.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: qFvH2qUVM1mirWmFF.MEMpNNdj7ztbqNM.aSEk1cZn8URZT ictYU5dtS6ILui7KJbEck6o3uVtenUA46CNk_qR.NyMKYRahRHpJZsnBWN0I 66851.3cxfUnurRSJA3hJRajWt3eYokrEBRPiu2ttgGi4U5KQ0Chw60wqZRD yeT9.O3TDa_oL.AqBWcQ.uUHVBQUdl.0y.mX.MwNac7z8efaK1hAGfwcBGVO DMvk6Sfd0rtXFV0ruBX.vojD9Y3PYGXNc4lMgb8aJGUg7OWkvAlndqWwE_u2 c2amzQ_otGXRpt0zOkL6DW016UqbvrRftQQxlzfkTzDbTT6MEmwmS6Agb4xI w7_rgBn.zt.OWQVKaxYF94XqRFPxFKZ6JJC31cipND6p3HBPD6_PtnV4CuuR 1Pt9zAryBkH1_lVCRx3m6RE5Jl4678IxICrLloCUE3VDxzI0xijw.RAbx5s6 6dW3cwM8q6FDKvxqIRKW7j7G3og-- X-Yahoo-SMTP: OIJXglSswBDfgLtXluJ6wiAYv6_cnw-- Message-ID: <4FCCDE2B.3020306@schaufler-ca.com> Date: Mon, 04 Jun 2012 09:11:23 -0700 From: Casey Schaufler User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:12.0) Gecko/20120428 Thunderbird/12.0.1 MIME-Version: 1.0 To: George Shuklin CC: Al Viro , linux-kernel , Casey Schaufler Subject: Re: Why minor is still 8 bit? References: <4FCC0E6D.9000206@gmail.com> <20120604013504.GU30000@ZenIV.linux.org.uk> <4FCC3151.1040503@gmail.com> In-Reply-To: <4FCC3151.1040503@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 6/3/2012 8:53 PM, George Shuklin wrote: > > 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? What are you trying to do, create a logical volume for every file? There are at least three separate technologies available that will solve whatever your problem is better than having 30,000 logical volumes. I don't have a clue what you think you're trying to accomplish and I am still willing to bet beers that you're bus is parked solidly on the wrong tracks. > -- > 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/ >