Thread (152 messages) 152 messages, 13 authors, 2016-04-14

[v3,11/41] mips: reuse asm-generic/barrier.h

From: peterz@infradead.org (Peter Zijlstra)
Date: 2016-01-26 10:16:37
Also in: linux-arch, linux-mips, linux-s390, linux-sh, linux-um, linuxppc-dev, lkml, sparclinux

On Mon, Jan 25, 2016 at 10:12:11PM -0800, Paul E. McKenney wrote:
On Mon, Jan 25, 2016 at 06:02:34PM +0000, Will Deacon wrote:
quoted
Thanks for having a go at this. I tried defining something axiomatically,
but got stuck pretty quickly. In my scheme, I used "data-directed
transitivity" instead of "local transitivity", since the latter seems to
be a bit of a misnomer.
I figured that "local" meant local to the CPUs participating in the
release-acquire chain.  As opposed to smp_mb() chains where the ordering
is "global" as in visible to all CPUs, whether on the chain or not.
Does that help?
That is in fact how I read and understood it.
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