linux-kernel - Re: [PATCH 0/9 net-next v2] rhashtable: Per bucket locks & deferred table resizing

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Message-Id: <20150103.144455.345230130702474137.davem@davemloft.net>
Date:	Sat, 03 Jan 2015 14:44:55 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	tgraf@...g.ch
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	herbert@...dor.apana.org.au, paulmck@...ux.vnet.ibm.com,
	edumazet@...gle.com, john.r.fastabend@...el.com,
	josh@...htriplett.org
Subject: Re: [PATCH 0/9 net-next v2] rhashtable: Per bucket locks &
 deferred table resizing

From: Thomas Graf <tgraf@...g.ch>
Date: Fri,  2 Jan 2015 23:00:13 +0100

> Prepares for and introduces per bucket spinlocks and deferred table
> resizing. This allows for parallel table mutations in different hash
> buckets from atomic context. The resizing occurs in the background
> in a separate worker thread while lookups, inserts, and removals can
> continue.
> 
> Also modified the chain linked list to be terminated with a special
> nulls marker to allow entries to move between multiple lists.
> 
> Last but not least, reintroduces lockless netlink_lookup() with
> deferred Netlink socket destruction to avoid the side effect of
> increased netlink_release() runtime.

I'm sure that this might need a minor tweak or two still, but I really
like how you implemented this so I'll apply this series now.

Thanks!
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