Re: RFC: patch to allow lock-free traversal of lists with insertion

Rusty Russell
2001-10-12T04:18:51Z

On Wed, 10 Oct 2001 18:56:26 -0700 (PDT)
"Paul E. McKenney" <mckenney@eng4.beaverton.ibm.com> wrote:

> Here are two patches. The wmbdd patch has been modified to use
> the lighter-weight SPARC instruction, as suggested by Dave Miller.
> The rmbdd patch defines an rmbdd() primitive that is defined to be
> rmb() on Alpha and a nop on other architectures. I believe this
> rmbdd() primitive is what Richard is looking for.

Surely we don't need both? If rmbdd exists, any code needing wmbdd
is terminally broken?

Rusty.