netdev - Re: [PATCH net-2.6] be2net: use semaphore instead of spin lock for mbox

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Date:	Tue, 14 Dec 2010 14:21:23 +0000
From:	Ben Hutchings <bhutchings@...arflare.com>
To:	Ivan Vecera <ivecera@...hat.com>
Cc:	netdev@...r.kernel.org, sathyap@...verengines.com,
	subbus@...verengines.com, sarveshwarb@...verengines.com,
	ajitk@...verengines.com, davem@...emloft.net
Subject: Re: [PATCH net-2.6] be2net: use semaphore instead of spin lock for
 mbox_lock

On Tue, 2010-12-14 at 14:46 +0100, Ivan Vecera wrote:
> Since the mbox polling uses the schedule_timeout, the mbox_lock should be
> a semaphore and not a spin lock.
> The commit f25b03a replaced udelay() with schedule_timeout() but didn't
> change the mbox_lock to a semaphore or a mutex.
[...]

I see no reason for this to be a semaphore; use a mutex instead.

Ben

-- 
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.

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