linux-kernel - Re: Poll about irqsafe_cpu

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Message-ID: <alpine.DEB.2.00.1103171245430.16620@router.home>
Date:	Thu, 17 Mar 2011 12:46:18 -0500 (CDT)
From:	Christoph Lameter <cl@...ux.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
cc:	David Miller <davem@...emloft.net>, linux-kernel@...r.kernel.org,
	linux-arch@...r.kernel.org, netdev@...r.kernel.org,
	netfilter-devel@...r.kernel.org
Subject: Re: Poll about irqsafe_cpu_add and others

On Thu, 17 Mar 2011, Eric Dumazet wrote:

> When we know we run from BH context, we can use __this_cpu_inc(), but if
> we dont know or run from user/process context, we would need irqsafe_inc
> variant.

If the BH context is the only one where we care about performance then its
ok I would think.
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