Messages in this thread | | | Date | Tue, 22 Sep 2015 15:50:59 -0400 | From | Tejun Heo <> | Subject | Re: [PATCH v2] netlink: Replace rhash_portid with bound |
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Hello,
On Tue, Sep 22, 2015 at 12:28:45PM -0700, Linus Torvalds wrote: > Both acquire and smp_rmb() are equally free on x86.
Was this always like this? Ah, okay, from 2007. Was thinking it's still doing an actual rmb. Talk about being confused.
> It appears that we don't do the X86_PPRO_FENCE bug handling for > acquire, but I guess we should.
Hmmm? We're doing that. PPRO_FENCE makes both acquire and release use smp_mb().
Thanks.
-- tejun
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