Re: [PATCH] netpoll: use non-BH variant of RCU

[David Miller]

From: "Paul E. McKenney" <paulmck@xxxxxxxxxxxxxxxxxx>
Date: Thu, 2 Sep 2010 10:26:25 -0700

>     softirq: adjust error check
>     
>     The error check for _local_bh_enable_ip() warns on both in_irq() and
>     irqs_disabled().  The check for in_irq() is necessary, because a hardirq
>     might well have interrupted bh execution, in which case it is simply
>     not possible for the hardirq to exclude the bh that got interrupted.
>     
>     However, it is perfectly reasonable to disable bh while hardirqs are
>     disabled, and this in fact promotes common code.  This commit therefore
>     removes the irqs_disabled() check.
>     
>     Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>

Acked-by: David S. Miller <davem@xxxxxxxxxxxxx>
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