Re: [patch] writeback daemons

[Andrew Morton]

Pavel Machek wrote:
> 
> Hi!
> 
> > > > The number of threads is dynamically managed by a simple
> > > > demand-driven algorithm.
> > >
> > > So... when we are low on free memory, we try to create more threads... Possible
> > > deadlock?
> >
> > Nope.  The number of threads is never allowed to fall below two,
> > for this very reason.
> 
> I thought this was the case. BTW do you need *two* threads for
> reliable operation, or is one enough?

I chose two because we used to have two - kupdate and bdflush.
But yes, surely one is sufficient.  Added to the todo file.

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