From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: Christophe Leroy <christophe.leroy@c-s.fr>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>, Scott Wood <oss@buserror.net>
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: [v2] powerpc: handle simultaneous interrupts at once
Date: Mon, 5 Jun 2017 20:21:47 +1000 (AEST) [thread overview]
Message-ID: <3wh9ph0pv2z9s7f@ozlabs.org> (raw)
In-Reply-To: <20170316085545.EEE4A68481@localhost.localdomain>
On Thu, 2017-03-16 at 08:55:45 UTC, Christophe Leroy wrote:
> It often happens to have simultaneous interrupts, for instance
> when having double Ethernet attachment. With the current
> implementation, we suffer the cost of kernel entry/exit for each
> interrupt.
>
> This patch introduces a loop in __do_irq() to handle all interrupts
> at once before returning.
>
> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/45cb08f4791ce6a15c54598b4cb73d
cheers
next prev parent reply other threads:[~2017-06-05 10:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-16 8:55 [PATCH v2] powerpc: handle simultaneous interrupts at once Christophe Leroy
2017-06-05 10:21 ` Michael Ellerman [this message]
2017-06-05 11:17 ` [v2] " Benjamin Herrenschmidt
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