linux-kernel - Re: [PATCH 3/3] Add timeout feature

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Message-ID: <20080929141326.GA31781@infradead.org>
Date:	Mon, 29 Sep 2008 10:13:26 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Takashi Sato <t-sato@...jp.nec.com>
Cc:	Ric Wheeler <rwheeler@...hat.com>,
	Christoph Hellwig <hch@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Oleg Nesterov <oleg@...sign.ru>, linux-fsdevel@...r.kernel.org,
	dm-devel@...hat.com, viro@...IV.linux.org.uk,
	linux-ext4@...r.kernel.org, xfs@....sgi.com, axboe@...nel.dk,
	mtk.manpages@...glemail.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] Add timeout feature

On Fri, Sep 26, 2008 at 05:52:35PM +0900, Takashi Sato wrote:
> I think that your concern is that the freezer cannot recognize the occurrence
> of a timeout and it continues the backup process and the backup data is
> corrupted finally.

What timeout should happen?  the freeze ioctl must not return until the
filesystem is a clean state and all writes are blocked.

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