linux-kernel - Re: [PATCH tip/core/rcu 4/4] documentation: Update circular buffer for load-acquire/store-release

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Message-ID: <13351.1384603125@warthog.procyon.org.uk>
Date:	Sat, 16 Nov 2013 11:58:45 +0000
From:	David Howells <dhowells@...hat.com>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:	dhowells@...hat.com, linux-kernel@...r.kernel.org,
	mingo@...nel.org, laijs@...fujitsu.com, dipankar@...ibm.com,
	akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com,
	josh@...htriplett.org, niv@...ibm.com, tglx@...utronix.de,
	peterz@...radead.org, rostedt@...dmis.org, edumazet@...gle.com,
	darren@...art.com, fweisbec@...il.com, sbw@....edu
Subject: Re: [PATCH tip/core/rcu 4/4] documentation: Update circular buffer for load-acquire/store-release

Paul E. McKenney <paulmck@...ux.vnet.ibm.com> wrote:

> -		/* read index before reading contents at that index */

> -		smp_mb(); /* finish reading descriptor before incrementing tail */

I'd rather you didn't remove these comments (assuming they're correct) as
they're pointing out the point of the example.

David
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