Re: [PATCH 19/19] mm: filemap: Avoid unnecessary barries and waitqueue lookups in unlock_page fastpath

[Oleg Nesterov]

On 05/13, Peter Zijlstra wrote:
>
> Ah, yes, so I'll defer to Oleg and Linus to explain that one. As per the
> name: smp_mb__before_spinlock() should of course imply a full barrier.

Oh yes, I agree, the name is confusing. At least the comment tries to
explain what it does.

Oleg.

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