netdev - Re: [v3 PATCH 3/9] rhashtable: Allow hashfn to be unset

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Date:	Mon, 23 Mar 2015 15:36:37 +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: [v3 PATCH 3/9] rhashtable: Allow hashfn to be unset

On 03/24/15 at 12:50am, Herbert Xu wrote:
> Since every current rhashtable user uses jhash as their hash
> function, the fact that jhash is an inline function causes each
> user to generate a copy of its code.
> 
> This function provides a solution to this problem by allowing
> hashfn to be unset.  In which case rhashtable will automatically
> set it to jhash.  Furthermore, if the key length is a multiple
> of 4, we will switch over to jhash2.
> 
> Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au>

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

I'll add some documentation when the API stabilizes and multiple
rehashing is complete.
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