netdev - Re: [v2 PATCH 1/10] rhashtable: Add barrier to ensure we see new tables in walker

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Message-ID: <20150322104743.GB1185@casper.infradead.org>
Date:	Sun, 22 Mar 2015 10:47:43 +0000
From:	Thomas Graf <tgraf@...g.ch>
To:	Herbert Xu <herbert@...dor.apana.org.au>
Cc:	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <eric.dumazet@...il.com>,
	Patrick McHardy <kaber@...sh.net>,
	Josh Triplett <josh@...htriplett.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	netdev@...r.kernel.org
Subject: Re: [v2 PATCH 1/10] rhashtable: Add barrier to ensure we see new
 tables in walker

On 03/22/15 at 07:03pm, Herbert Xu wrote:
> The walker is a lockless reader so it too needs an smp_rmb before
> reading the future_tbl field in order to see any new tables that
> may contain elements that we should have walked over.
> 
> Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au>

Acked-by: Thomas Graf <tgraf@...g.ch>
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