linux-kernel - Re: [PATCH 2/6] fs/9p: call vmtruncate before setattr 9p opeation

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Message-ID: <20110301121012.GA15516@infradead.org>
Date:	Tue, 1 Mar 2011 07:10:12 -0500
From:	Christoph Hellwig <hch@...radead.org>
To:	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
Cc:	v9fs-developer@...ts.sourceforge.net,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/6] fs/9p: call vmtruncate before setattr 9p opeation

On Tue, Mar 01, 2011 at 02:21:20PM +0530, Aneesh Kumar K.V wrote:
> We need to call vmtruncate before 9p setattr operation, otherwise we
> could write back some dirty pages between setattr with ATTR_SIZE and vmtruncate
> causing some truncated pages to be written back to server

Please read the documentation.  vmtruncate is deprecated and no new
users may be added at this point.

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