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

From: David S. Miller (
Date: Tue Oct 09 2001 - 00:56:10 EST

   From: "Paul McKenney" <>
   Date: Mon, 8 Oct 2001 22:27:44 -0700
   All other CPUs must observe the preceding stores before the following
   Does this do the trick?
              membar #StoreStore

   The IPIs and related junk are I believe needed only on Alpha, which has
   no single memory-barrier instruction that can do wmbdd()'s job. Given
   that Alpha seems to be on its way out, this did not seem to me to be
   too horrible.
I somehow doubt that you need an IPI to implement the equivalent of
"membar #StoreStore" on Alpha. Richard?

Franks a lot,
David S. Miller
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