[dm-devel] Re: [PATCH 3/3] Add timeout feature
Christoph Hellwig
hch at infradead.org
Mon Sep 8 17:11:19 UTC 2008
On Mon, Sep 08, 2008 at 08:53:37PM +0900, Takashi Sato wrote:
> The timeout feature is added to "freeze ioctl" to solve a deadlock
> when the freezer accesses a frozen filesystem. And new ioctl
> to reset the timeout period is added to extend the timeout period.
> For example, the freezer resets the timeout period to 10 seconds every 5
> seconds. In this approach, even if the freezer causes a deadlock by
> accessing the frozen filesystem, it will be solved by the timeout
> in 10 seconds and the freezer will be able to recognize that
> at the next reset of timeout period.
And as with all previous posting I still fundamentally disagree about
the need of this functionality. We don't need a timeout for freezing.
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