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From: | Paolo Bonzini |
Subject: | Re: [Qemu-devel] [PATCH 1/2] atomics: do not use __atomic primitives for RCU atomics |
Date: | Tue, 24 May 2016 09:08:01 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.0 |
On 23/05/2016 19:09, Emilio G. Cota wrote: > E. > > PS. And really equating smp_wmb/rmb to release/acquire as we have under > #ifdef __ATOMIC is hard to justify, other than to please tsan. That only makes a difference on arm64, right? acquire release rmb wmb x86 -- -- -- -- power lwsync lwsync lwsync lwsync armv7 dmb dmb dmb dmb arm64 dmb ishld dmb ish dmb ishld dmb ishst ia64 -- -- -- -- Thanks, Paolo
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