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Message-Id: <1257340841-3739-2-git-send-email-yong.zhang0@gmail.com>
Date: Wed, 4 Nov 2009 21:20:40 +0800
From: Yong Zhang <yong.zhang0@...il.com>
To: linux-kernel@...r.kernel.org
Cc: Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>
Subject: [PATCH 2/3] genirq: set irq thread affinity when doing __setup_irq
setup_affinity() should be paired with irq_set_thread_affinity()
even in the setup stage of an irq. Because irq_default_affinity
could be initialized by arch code in which case affinity between
irq and thead will be inconsistent.
Signed-off-by: Yong Zhang <yong.zhang0@...il.com>
Cc: Ingo Molnar <mingo@...e.hu>
Cc: Thomas Gleixner <tglx@...utronix.de>
---
kernel/irq/manage.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 0b5e5ed..5c5c114 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -748,7 +748,9 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
desc->status |= IRQ_NO_BALANCING;
/* Set default affinity mask once everything is setup */
- setup_affinity(irq, desc);
+ ret = setup_affinity(irq, desc);
+ if (!ret)
+ irq_set_thread_affinity(desc);
} else if ((new->flags & IRQF_TRIGGER_MASK)
&& (new->flags & IRQF_TRIGGER_MASK)
--
1.6.3.3
--
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