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

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Message-ID: <20080822181656.GB15469@infradead.org>
Date:	Fri, 22 Aug 2008 14:16:56 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Takashi Sato <t-sato@...jp.nec.com>, linux-fsdevel@...r.kernel.org,
	dm-devel@...hat.com, viro@...IV.linux.org.uk,
	linux-ext4@...r.kernel.org, xfs@....sgi.com, hch@...radead.org,
	axboe@...nel.dk, mtk.manpages@...glemail.com,
	linux-kernel@...r.kernel.org, Oleg Nesterov <oleg@...sign.ru>
Subject: Re: [PATCH 3/3] Add timeout feature

On Thu, Aug 21, 2008 at 01:20:06PM -0700, Andrew Morton wrote:
> I don't think the changelogs actually explained why this feature is
> being added?
> 
> Which userspace tools are expected to send these ioctls?  Something in
> util-linux?  dm-utils?  Are patches to those packages planned?

Currently the only surspace using freeze and thaw is xfs_freeze from
xfsprogs, which would work for various other filesystems that implement
->write_super_lockfs now instead of just XFS with patch 1.

The freeze stuff in this third patch isn't and won't be used by
xfs_freeze and doesn't make all that much sense (and we already had a
lot of previous discussion on this..)

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