[dm-devel] v4.9, 4.4-final: 28 bioset threads on small notebook, 36 threads on cellphone

[Mike Galbraith]

On Tue, 2017-02-07 at 21:39 +0100, Pavel Machek wrote:
> On Mon 2017-02-06 17:49:06, Kent Overstreet wrote:
> > On Mon, Feb 06, 2017 at 04:47:24PM -0900, Kent Overstreet wrote:
> > > On Mon, Feb 06, 2017 at 01:53:09PM +0100, Pavel Machek wrote:
> > > > Still there on v4.9, 36 threads on nokia n900 cellphone.
> > > > 
> > > > So.. what needs to be done there?
> > 
> > > But, I just got an idea for how to handle this that might be halfway sane, maybe
> > > I'll try and come up with a patch...
> > 
> > Ok, here's such a patch, only lightly tested:
> 
> I guess it would be nice for me to test it... but what it is against?
> I tried after v4.10-rc5 and linux-next, but got rejects in both cases.

It wedged into master easily enough (box still seems to work.. but I'll
be rebooting in a very few seconds just in case:), but threads on my
desktop box only dropped from 73 to 71.  Poo.

	-Mike