Date: Fri, 22 Aug 2008 14:16:56 -0400
From: Christoph Hellwig <hch@infradead.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Takashi Sato <t-sato@yk.jp.nec.com>, linux-fsdevel@vger.kernel.org,
       dm-devel@redhat.com, viro@ZenIV.linux.org.uk,
       linux-ext4@vger.kernel.org, xfs@oss.sgi.com, hch@infradead.org,
       axboe@kernel.dk, mtk.manpages@googlemail.com,
       linux-kernel@vger.kernel.org, Oleg Nesterov <oleg@tv-sign.ru>
Subject: Re: [PATCH 3/3] Add timeout feature
Message-ID: <20080822181656.GB15469@infradead.org>
References: <20080818212856t-sato@mail.jp.nec.com> <20080821132006.9949101c.akpm@linux-foundation.org>
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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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