Re: [RFC PATCH(experimental) 2/2] Fix freezer-kthread_stop race

[Andrew Morton]

On Fri, 20 Apr 2007 17:56:09 +0530
Gautham R Shenoy <ego@xxxxxxxxxx> wrote:

> > I mean, we already have four of them (PF_NOFREEZE, PF_FROZEN,
> > PF_FREEZER_SKIP, TIF_FREEZE), and you will need to introduce two more for
> > the freezer-based CPU hotplug, so if yet another one is needed, that will make
> > up almost a separate u8 field ...
> 
> I am perfectly ok with it. But I am not sure if everybody would agree to have
> another field in the task struct, though in this case it does make sense :-)

OK by me.  You might want to consider making that fields's locking protocol
be set_bit(), clear_bit(), etc rather than task_lock().
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