lkml.org 
[lkml]   [2017]   [May]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: 答复 : [PATCH 0/3] arm64: queued spinlocks and rw-locks
On Fri, May 05, 2017 at 06:28:45PM +0300, Yury Norov wrote:
> On Fri, May 05, 2017 at 01:26:40PM +0100, Will Deacon wrote:
> > On Fri, May 05, 2017 at 01:53:03PM +0200, Peter Zijlstra wrote:
> > > On Thu, May 04, 2017 at 11:28:09PM +0300, Yury Norov wrote:
> > > > I don't think
> > > > it's a real use case to have ticket spinlocks and queued rwlocks
> > >
> > > There's nothing wrong with that combination. In fact, we merged qrwlock
> > > much earlier than qspinlock.
> >
> > ... and that's almost certainly the direction we'll go on arm64 too, not
> > least because the former are a lot easier to grok.
> >
> > Will
>
> Hmm. Then I think I have to split patch 3 to rwlock and spinlock
> parts, and allow user to enable them independently in config.

To be honest, I'm going to spend some time looking at the qrwlock code again
before I enable it for arm64, so I don't think you need to rush to resend
patches since I suspect I'll have a few in the meantime.

Will

\
 
 \ /
  Last update: 2017-05-05 17:33    [W:0.056 / U:0.852 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site