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Message-ID: <54EDEE55.8050605@iogearbox.net> Date: Wed, 25 Feb 2015 16:46:29 +0100 From: Daniel Borkmann <daniel@...earbox.net> To: David Laight <David.Laight@...LAB.COM>, "davem@...emloft.net" <davem@...emloft.net> CC: "tgraf@...g.ch" <tgraf@...g.ch>, "pablo@...filter.org" <pablo@...filter.org>, "johunt@...mai.com" <johunt@...mai.com>, "kaber@...sh.net" <kaber@...sh.net>, "netdev@...r.kernel.org" <netdev@...r.kernel.org> Subject: Re: [PATCH net 2/2] rhashtable: remove indirection for grow/shrink decision functions On 02/25/2015 04:41 PM, David Laight wrote: ... > Why not cache the 'number of items before we need to expand' value > after each expansion, setting it to 'infinite' when expansion is disabled. > Then the above check is a simple comparison. > You probably don't even need an atomic_read() - provided something is > double checked once the first test determines that an expansion is needed. Did you read my cover letter? ;) -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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