linux-kernel - Re: [PATCH 4/4] locking: Introduce smp_cond

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Date:	Wed, 11 Nov 2015 13:12:32 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Boqun Feng <boqun.feng@...il.com>
Cc:	Oleg Nesterov <oleg@...hat.com>, mingo@...nel.org,
	linux-kernel@...r.kernel.org, paulmck@...ux.vnet.ibm.com,
	corbet@....net, mhocko@...nel.org, dhowells@...hat.com,
	torvalds@...ux-foundation.org, will.deacon@....com
Subject: Re: [PATCH 4/4] locking: Introduce smp_cond_acquire()

On Wed, Nov 11, 2015 at 05:39:40PM +0800, Boqun Feng wrote:

> Just be curious, should spin_unlock_wait() semantically be an ACQUIRE?

I did wonder the same thing, it would simplify a number of things if
this were so.
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