netdev - Re: [v1 PATCH 1/14] rhashtable: Remove shift from bucket

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Message-ID: <20150317105657.GE11089@casper.infradead.org>
Date:	Tue, 17 Mar 2015 10:56:57 +0000
From:	"tgraf@...g.ch" <tgraf@...g.ch>
To:	David Laight <David.Laight@...LAB.COM>
Cc:	'Herbert Xu' <herbert@...dor.apana.org.au>,
	David Miller <davem@...emloft.net>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	Eric Dumazet <eric.dumazet@...il.com>
Subject: Re: [v1 PATCH 1/14] rhashtable: Remove shift from bucket_table

On 03/17/15 at 10:51am, David Laight wrote:
> Looks like you could pre-calculate the 'grow_at' size.
> The test above would then be:
> 	return atomic_read(&ht->nelems > tbl->grow_at_size);
> 
> Similarly for the shrink.

Given the discussions, the grow decision will likely change to
a max bucket length limit anyway.
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