git: cpu_sfence: Don't use sfence

[Sepherosa Ziehau <sephe@xxxxxxxxxxxxxxxxxxxxxxx>]

commit 39bedebc8310ef8759ce81f094c9eed1b888d570
Author: Sepherosa Ziehau <sephe@dragonflybsd.org>
Date:   Sun Jan 30 10:36:11 2011 +0800

    cpu_sfence: Don't use sfence
    
    As suggested by dillon@, it will create many unnecessary stalls

Summary of changes:
 sys/cpu/i386/include/cpufunc.h   |   11 +++++------
 sys/cpu/x86_64/include/cpufunc.h |    9 +++++----
 2 files changed, 10 insertions(+), 10 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/39bedebc8310ef8759ce81f094c9eed1b888d570


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