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

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Message-ID: <20080701081026.GB16691@infradead.org>
Date:	Tue, 1 Jul 2008 04:10:26 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Takashi Sato <t-sato@...jp.nec.com>
Cc:	akpm@...ux-foundation.org, viro@...IV.linux.org.uk,
	"linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>,
	"xfs@....sgi.com" <xfs@....sgi.com>,
	"dm-devel@...hat.com" <dm-devel@...hat.com>,
	"linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	axboe@...nel.dk, mtk.manpages@...glemail.com
Subject: Re: [PATCH 3/3] Add timeout feature

I still disagree with this whole patch.  There is not reason to let
the freeze request timeout - an auto-unfreezing will only confuse the
hell out of the caller.  The only reason where the current XFS freeze
call can hang and this would be theoretically useful is when the
filesystem is already frozen by someone else, but this should be fixed
by refusing to do the second freeze, as suggested in my comment to patch
1.

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