linux-kernel - Re: [PATCH] jbd: change the field "b_cow_tid" of struct journal_head from type unsigned to tid

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Message-ID: <20110725134442.GA9826@infradead.org>
Date:	Mon, 25 Jul 2011 09:44:42 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Wang Sheng-Hui <shhuiw@...il.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>, Jan Kara <jack@...e.cz>,
	linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] jbd: change the field "b_cow_tid" of struct journal_head
 from type unsigned to tid_t

On Mon, Jul 25, 2011 at 09:02:25PM +0800, Wang Sheng-Hui wrote:
> The patch is against 3.0
> 
> In the definition of struct journal_head, the comment for
> the field "unsigned b_cow_tid" says the field tracks the
> last transaction id in which this buffer has been cowed.

The correct fix is to simply remove the field, as it's entirely unused.

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