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SubjectRe: [RFC][PATCH 5/5] percpu-rwsem: Optimize readers and reduce global impact
On 05/29, Oleg Nesterov wrote:
>
> Just one nit below,

Ah, wait, I forgot about the "trivial" percpu_up_write()...

Doesn't it need mb() before "state = readers_slow" to ensure
"release" semantics?

Oleg.



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