Re: [RFC][PATCH -mm 4/6] Freezer: Prevent new tasks from inheriting TIF_FREEZE set

Pavel Machek
2007-07-10T15:05:54Z

> On Tuesday, 10 July 2007 01:21, Pavel Machek wrote:
> > Hi!
> >
> > > From: Rafael J. Wysocki <rjw@sisk.pl>
> > >
> > > Tasks should go to the refrigerator only if explicitly requested to do that by
> > > the freezer and not as a result of inheriting the TIF_FREEZE flag set from the
> > > parent. Make it happen.
> >
> > Umm, what prevents userspace task from escaping freezer this way? Does
> > tasklist_lock prevent new tasks and thus this race?
>
> I think so.

I think so, too. ACK.
Pavel

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