Messages in this thread | | | From | "Paul E. McKenney" <> | Subject | Re: RFC: patch to allow lock-free traversal of lists with insertion | Date | Sat, 13 Oct 2001 07:48:30 -0700 (PDT) |
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>> 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?
One or the other. And at this point, it looks like rmbdd() (or read_cache_depends()) is the mechanism of choice, given wmbdd()'s performance on Alpha.
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