Re: [RFC][PATCH] dm: Remove dm_bufio_cond_resched()

[Peter Zijlstra]

On Fri, Sep 23, 2016 at 02:17:10PM +0200, Mike Galbraith wrote:
> On Fri, 2016-09-23 at 10:00 +0200, Thomas Gleixner wrote:
> > On Fri, 23 Sep 2016, Peter Zijlstra wrote:
> 
> > > Is anybody still using PREEMPT_NONE? Most workloads also care about
> > > latency to some extend. Lots of code has explicit cond_resched() and
> > > doesn't worry.
> > 
> > Dunno. But I bet there are workloads which love it.
> 
> SUSE definitely uses it.  I had presumed that was enterprise standard.

Hmm, I thought most distros defaulted to PREEMPT_VOLUNTARY.