linux-ext4 - Re: Need of revoke mechanism in JBD

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Message-ID: <BANLkTikuNB8m3-X8BXVcL2OCqQiZwRCbQA@mail.gmail.com>
Date:	Tue, 26 Apr 2011 16:56:58 +0800
From:	Yongqiang Yang <xiaoqiangnk@...il.com>
To:	Niraj Kulkarni <kulkarniniraj14@...il.com>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: Need of revoke mechanism in JBD

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
<kulkarniniraj14@...il.com> wrote:
> Hi all,
>      I am new to fs development. I am trying to modify the journal structure
> of JBD. While analyzing the code, I could understand most of the things, but
> I am not able to understand the need of revoke mechanism. Can anybody
> enlighten me on this issue?
>
> Regards
> Niraj
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-- 
Best Wishes
Yongqiang Yang
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