Re: Linux futexes

[maya%netbsd.org@localhost]

On Sat, Jul 27, 2019 at 06:05:25AM -0700, Jason Thorpe wrote:
> 
> 
> > On Jul 27, 2019, at 5:05 AM, Robert Swindells <rjs%fdy2.co.uk@localhost> wrote:
> > 
> > 
> > I don't think the Linux futex emulation code is correct/good enough.
> 
> I have be on/off working on an updated futex implementation written by Taylor, with the intent of making it a native call (in order to improve or own semaphore and mutex implementations).  You are correct in that the current implementation is lacking.
> 
> I will try to focus on finishing up the new implementation soon.  But even the stuff written by Taylor is a little lacking compared to what modern Linux uses futexes for, so some additional work is going to be required.
> 

Hi jason,

it's probably good practice to share your own code in these
circumstances.

I believe it's https://github.com/thorpej/netbsd-src/tree/trc-jrt-futex