linux-kernel - Re: [PATCH v2] locking/rtmutex: Use acquire/release semantics

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Message-ID: <alpine.DEB.2.11.1509271233030.4500@nanos>
Date:	Sun, 27 Sep 2015 12:37:14 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Davidlohr Bueso <dave@...olabs.net>
cc:	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Will Deacon <will.deacon@....com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	linux-kernel@...r.kernel.org, Davidlohr Bueso <dbueso@...e.de>
Subject: Re: [PATCH v2] locking/rtmutex: Use acquire/release semantics

On Wed, 23 Sep 2015, Davidlohr Bueso wrote:

> From: Davidlohr Bueso <dave@...olabs.net>
> 
> As such, weakly ordered archs can benefit from more relaxed use
> of barriers when locking/unlocking.

That changelog is not really helpful if someone is going to look at it
half a year from now who doesn't have the background of the discussion
leading to these changes.

Thanks,

	tglx
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