On Sat, 5 Jul 2014, Jiri Kosina wrote:

> > > The same holds for the kernel threads -- until all (or most of) the 
> > > kthreads are converted to workqueues, the obivous choice, that should 
> > > cover most of the use-cases, has been made.
> > 
> > But, this is different.  
> 
> Quite frankly, I have to say that I don't personally see *that* big 
> difference. In both cases we are making assumptions about semantics, and 
> are trying to get "as close as possible" to the point in time where the 
> set of assumptions can be made as minimal as possible.
> 
> With userspace thread, this is kernel/userspace boundary. With kthread, 
> this is starting of new iteration of the main loop / try_to_freeze().
> 
> We were not able to come up with anything better. Alan, you were 
> stating "I don't see why it can't use the kernel freeze functionality?". 
> What exactly was your suggestion, if not this, please?

Seems like there was no further activity on this wile I was on vacation, 
so let me resurrect this.

Alan, either we are already doing what you suggested, or I misunderstood 
your proposal above. Could you please elaborate?

Thanks,

-- 
Jiri Kosina
SUSE Labs
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