linux-ext4 - Re: [BUG] ext2/3/4: dio reads stale data when we do some append dio writes

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Message-ID: <20131119111826.GA20485@infradead.org>
Date:	Tue, 19 Nov 2013 03:18:26 -0800
From:	Christoph Hellwig <hch@...radead.org>
To:	Christoph Hellwig <hch@...radead.org>, linux-ext4@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, xfs@....sgi.com
Subject: Re: [BUG] ext2/3/4: dio reads stale data when we do some append dio
 writes

On Tue, Nov 19, 2013 at 07:19:47PM +0800, Zheng Liu wrote:
> Yes, I know that XFS has a shared/exclusive lock.  I guess that is why
> it can pass the test.  But another question is why xfs fails when we do
> some append dio writes with doing buffered read.

Can you provide a test case for that issue?

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