netdev - Re: [PATCH net-next v3 1/2] genl: Allow concurrent genl callbacks.

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Message-Id: <20130425.014329.1226803564300179546.davem@davemloft.net>
Date:	Thu, 25 Apr 2013 01:43:29 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	pshelar@...ira.com
Cc:	netdev@...r.kernel.org, dev@...nvswitch.org, jesse@...ira.com
Subject: Re: [PATCH net-next v3 1/2] genl: Allow concurrent genl callbacks.

From: Pravin B Shelar <pshelar@...ira.com>
Date: Tue, 23 Apr 2013 10:48:30 -0700

> All genl callbacks are serialized by genl-mutex. This can become
> bottleneck in multi threaded case.
> Following patch adds an parameter to genl_family so that a
> particular family can get concurrent netlink callback without
> genl_lock held.
> New rw-sem is used to protect genl callback from genl family unregister.
> in case of parallel_ops genl-family read-lock is taken for callbacks and
> write lock is taken for register or unregistration for any family.
> In case of locked genl family semaphore and gel-mutex is locked for
> any openration.
> 
> Signed-off-by: Pravin B Shelar <pshelar@...ira.com>

Applied.
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