Re: [RFC][PATCH] make global bitlock waitqueues per-node

[Peter Zijlstra]

On Tue, Dec 20, 2016 at 10:02:46AM -0800, Linus Torvalds wrote:
> On Tue, Dec 20, 2016 at 9:31 AM, Linus Torvalds
> <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
> >
> > I'll go back and try to see why the page flag contention patch didn't
> > get applied.
> 
> Ahh, a combination of warring patches by Nick and PeterZ, and worry
> about the page flag bits.

I think Nick actually had a patch freeing up a pageflag, although Hugh
had a comment on that.

That said, I'm not a huge fan of his waiters patch, I'm still not sure
why he wants to write another whole wait loop, but whatever. Whichever
you prefer I suppose.