From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754900Ab1LXVgf (ORCPT ); Sat, 24 Dec 2011 16:36:35 -0500 Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.120]:27246 "EHLO cdptpa-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752612Ab1LXVgb (ORCPT ); Sat, 24 Dec 2011 16:36:31 -0500 X-Authority-Analysis: v=2.0 cv=APbyNIPv c=1 sm=0 a=QETZmXXmyubuBiJjAgCHWw==:17 a=acFpV6Ajmw0A:10 a=LNmbJxpDd3oA:10 a=8nJEP1OIZ-IA:10 a=xe8BsctaAAAA:8 a=UMrV0lYrjPYvGOAw_lkA:9 a=wPNLvfGTeEIA:10 a=QETZmXXmyubuBiJjAgCHWw==:117 X-Cloudmark-Score: 0 X-Originating-IP: 97.103.252.48 Message-ID: <4EF645DC.3000202@cfl.rr.com> Date: Sat, 24 Dec 2011 16:36:28 -0500 From: Phillip Susi User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:8.0) Gecko/20111124 Thunderbird/8.0 MIME-Version: 1.0 To: Vivek Goyal CC: joe@perches.com, kzak@redhat.com, linux-kernel@vger.kernel.org, jaxboe@fusionio.com Subject: Re: [PATCH 1/2] Add partition resize function to BLKPG ioctl References: <4EE6990A.9010202@cfl.rr.com> <1323735382-5972-1-git-send-email-psusi@cfl.rr.com> <20111219202527.GF7175@redhat.com> <4EF13C30.4050307@cfl.rr.com> <20111221204641.GB27789@redhat.com> In-Reply-To: <20111221204641.GB27789@redhat.com> X-Enigmail-Version: 1.4a1pre Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 12/21/2011 03:46 PM, Vivek Goyal wrote: > I guess taking disk mutex will help us providing mutual exclusion between > multiple ioctls or multiple instances of same ioctl. Like, while you are > extending a partition and checking for overlap, you don't want another call > making progress on next partition which might overlap with this partition. Good point; I will put it back and grab it in the correct order. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJO9kXcAAoJEJrBOlT6nu75NcMH/jC8YXfpB6jnCjKtPxP2Hw8G vRfCULFi3h8WQbRmhR4AvayMJfwTYNkA/QB7TxZ0bYEm8SawesJuVyAKWLe1qutB AFUEFL6d8+lt8vMcpsK1LWFBACEPd2TIN+oMttbaLTm2J+SOotnCdkKk691cIX8g PtxEIeAB3NBBxfJ8hJUee3CQb4E0yg7zefdBEctLUC5Y3bKzAHtD5OvboyWf6Ycj 4+VONmaBwHS10hvXnk1CjLJXgjVs5lG+gKniW29SqdnKFbZ3zGl7Ye+QyUyjH9FU xltg/a+qV5Zx2e3EAi3uTkqaSUgsgo4dCKdCIAmR5+FyhbooJV8xV4d4rdMJvFU= =taVc -----END PGP SIGNATURE-----