netdev - Re: [PATCH net-2.6] sfc: Fix polling for slow MCDI operations

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Message-Id: <20100113.171551.103071659.davem@davemloft.net>
Date:	Wed, 13 Jan 2010 17:15:51 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	bhutchings@...arflare.com
Cc:	netdev@...r.kernel.org, linux-net-drivers@...arflare.com
Subject: Re: [PATCH net-2.6] sfc: Fix polling for slow MCDI operations

From: Ben Hutchings <bhutchings@...arflare.com>
Date: Wed, 13 Jan 2010 14:34:25 +0000

> When the interface is down and we are using polled mode for MCDI
> operations, we busy-wait for completion for approximately 1 jiffy
> using udelay() and then back off to schedule().  But the completion
> will not wake the task, since we are using polled mode!  We must use
> schedule_timeout_uninterruptible() instead.
> 
> Signed-off-by: Ben Hutchings <bhutchings@...arflare.com>

Applied.
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