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Re: [PATCH v7 08/14] KVM: Rename mmu_notifier_*
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From: |
Peter Zijlstra |
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Subject: |
Re: [PATCH v7 08/14] KVM: Rename mmu_notifier_* |
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Date: |
Wed, 24 May 2023 22:28:35 +0200 |
On Wed, May 24, 2023 at 11:42:15AM +0530, Kautuk Consul wrote:
> My comment was based on the assumption that "all atomic operations are
> implicit memory barriers". If that assumption is true then we won't need
It is not -- also see Documentation/atomic_t.txt.
Specifically atomic_read() doesn't imply any ordering on any
architecture including the strongly ordered TSO-archs (like x86).