Re: Problem with freezable workqueues

From: Rafael J. Wysocki
Date: Tue Feb 27 2007 - 19:07:24 EST


On Wednesday, 28 February 2007 01:01, Johannes Berg wrote:
> On Wed, 2007-02-28 at 00:57 +0100, Rafael J. Wysocki wrote:
>
> > Okay, in that case I'd suggest removing create_freezeable_workqueue() and
> > make all workqueues nonfreezable once again for 2.6.21 (as far as I know, only
> > the two XFS workqueues are affected).
>
> I think Nigel might object but I forgot what specific trouble XFS was
> causing him.

We suspected that the XFS' worker threads might commit I/O after
freeze_processes() has returned, but that hasn't been supported by evidence,
as far as I can recall.

Also, making them freezable was controversial ...

Greetings,
Rafael
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