From: Kumar Gala <galak@kernel.crashing.org>
To: Linus Torvalds <torvalds@osdl.org>
Cc: Andrew Morton <akpm@osdl.org>,
linuxppc-dev@ozlabs.org, tglx@linutronix.de,
linux-kernel@vger.kernel.org, maxk@qualcomm.com
Subject: [PATCH] genirq: Set initial default irq affinity to just CPU0
Date: Fri, 24 Oct 2008 10:57:38 -0500 [thread overview]
Message-ID: <1224863858-7933-1-git-send-email-galak@kernel.crashing.org> (raw)
Commit 18404756765c713a0be4eb1082920c04822ce588 introduced a regression
on a subset of SMP based PPC systems whose interrupt controller only
allow setting an irq to a single processor. The previous behavior
was only CPU0 was initially setup to get interrupts. Revert back
to that behavior.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
---
kernel/irq/manage.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index c498a1b..728d36a 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -17,7 +17,7 @@
#ifdef CONFIG_SMP
-cpumask_t irq_default_affinity = CPU_MASK_ALL;
+cpumask_t irq_default_affinity = CPU_MASK_CPU0;
/**
* synchronize_irq - wait for pending IRQ handlers (on other CPUs)
--
1.5.5.1
WARNING: multiple messages have this Message-ID (diff)
From: Kumar Gala <galak@kernel.crashing.org>
To: Linus Torvalds <torvalds@osdl.org>
Cc: linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org,
maxk@qualcomm.com, Andrew Morton <akpm@osdl.org>,
tglx@linutronix.de
Subject: [PATCH] genirq: Set initial default irq affinity to just CPU0
Date: Fri, 24 Oct 2008 10:57:38 -0500 [thread overview]
Message-ID: <1224863858-7933-1-git-send-email-galak@kernel.crashing.org> (raw)
Commit 18404756765c713a0be4eb1082920c04822ce588 introduced a regression
on a subset of SMP based PPC systems whose interrupt controller only
allow setting an irq to a single processor. The previous behavior
was only CPU0 was initially setup to get interrupts. Revert back
to that behavior.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
---
kernel/irq/manage.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index c498a1b..728d36a 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -17,7 +17,7 @@
#ifdef CONFIG_SMP
-cpumask_t irq_default_affinity = CPU_MASK_ALL;
+cpumask_t irq_default_affinity = CPU_MASK_CPU0;
/**
* synchronize_irq - wait for pending IRQ handlers (on other CPUs)
--
1.5.5.1
next reply other threads:[~2008-10-24 15:58 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-24 15:57 Kumar Gala [this message]
2008-10-24 15:57 ` [PATCH] genirq: Set initial default irq affinity to just CPU0 Kumar Gala
2008-10-24 23:18 ` David Miller
2008-10-24 23:18 ` David Miller
2008-10-25 21:33 ` Benjamin Herrenschmidt
2008-10-25 21:33 ` Benjamin Herrenschmidt
2008-10-25 22:53 ` Kevin Diggs
2008-10-26 4:05 ` David Miller
2008-10-27 17:36 ` Chris Friesen
2008-10-27 18:28 ` David Miller
2008-10-27 19:10 ` Chris Friesen
2008-10-27 19:25 ` David Miller
2008-10-28 3:46 ` Chris Friesen
2008-10-27 19:43 ` Kumar Gala
2008-10-27 19:49 ` David Miller
2008-10-27 20:46 ` Kumar Gala
2008-10-26 6:48 ` Benjamin Herrenschmidt
2008-10-26 7:16 ` David Miller
2008-10-26 8:29 ` Benjamin Herrenschmidt
2008-10-27 2:30 ` Kevin Diggs
2008-10-27 2:49 ` Benjamin Herrenschmidt
2008-10-26 4:04 ` David Miller
2008-10-26 4:04 ` David Miller
2008-10-26 6:33 ` Benjamin Herrenschmidt
2008-10-26 6:33 ` Benjamin Herrenschmidt
2008-10-27 13:43 ` Kumar Gala
2008-10-27 13:43 ` Kumar Gala
2008-10-27 20:27 ` Benjamin Herrenschmidt
2008-10-27 20:27 ` Benjamin Herrenschmidt
2008-10-27 20:45 ` Kumar Gala
2008-10-27 20:45 ` Kumar Gala
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