From: Paolo Bonzini <pbonzini@redhat.com>
Date: Sat, 10 Sep 2011 19:26:19 +0000 (-0700)
Subject: cmm: let per-arch files provide cmm_smp_* barriers
X-Git-Tag: v0.6.5~29
X-Git-Url: http://git.liburcu.org/?a=commitdiff_plain;h=0bd48ad389868e7b98f14fb88f9b4a81ff93b6d0;hp=0bd48ad389868e7b98f14fb88f9b4a81ff93b6d0;p=userspace-rcu.git

cmm: let per-arch files provide cmm_smp_* barriers

x86 instructions lfence and sfence are rarely needed, thus we want
the cmm_smp_rmb/cmm_smp_wmb macros to be simple compiler barriers.
So, let the per-arch files override the default definitions in
arch/generic.h.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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