From: Yongqiang Yang Subject: Re: Need of revoke mechanism in JBD Date: Tue, 26 Apr 2011 16:56:58 +0800 Message-ID: References: <4DB68257.4070407@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: linux-ext4@vger.kernel.org To: Niraj Kulkarni Return-path: Received: from mail-pv0-f174.google.com ([74.125.83.174]:42747 "EHLO mail-pv0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752311Ab1DZI47 convert rfc822-to-8bit (ORCPT ); Tue, 26 Apr 2011 04:56:59 -0400 Received: by pvg12 with SMTP id 12so296437pvg.19 for ; Tue, 26 Apr 2011 01:56:58 -0700 (PDT) In-Reply-To: <4DB68257.4070407@gmail.com> Sender: linux-ext4-owner@vger.kernel.org List-ID: AFAIK, it can accelerate the recovering process. If a block is in the revoke table of a transaction t1 and t1 is committed, then the there is no need to recover the block in transactions which is earlier than t1. On Tue, Apr 26, 2011 at 4:29 PM, Niraj Kulkarni wrote: > Hi all, > =A0 =A0 =A0I am new to fs development. I am trying to modify the jour= nal structure > of JBD. While analyzing the code, I could understand most of the thin= gs, but > I am not able to understand the need of revoke mechanism. Can anybody > enlighten me on this issue? > > Regards > Niraj > -- > To unsubscribe from this list: send the line "unsubscribe linux-ext4"= in > the body of a message to majordomo@vger.kernel.org > More majordomo info at =A0http://vger.kernel.org/majordomo-info.html > --=20 Best Wishes Yongqiang Yang -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html