linux-kernel - [PATCH] BUG: Fix smp_call_function_any to pass the node value to cpumask_of

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Date:	Tue,  5 Jan 2010 11:03:03 +0530
From:	David John <davidjon@...ontk.org>
To:	rusty@...tcorp.com.au
Cc:	akpm@...ux-foundation.org, tglx@...utronix.de,
	linux-kernel@...r.kernel.org
Subject: [PATCH] BUG: Fix smp_call_function_any to pass the node value to cpumask_of_node.

The change in acpi_cpufreq to use smp_call_function_any causes an
OOPS when it is called since the function erroneously passes the
cpu id to cpumask_of_node rather than the node that the cpu
is on. Fix this.

Signed-off-by: David John <davidjon@...ontk.org>

diff --git a/kernel/smp.c b/kernel/smp.c
index de735a6..f104084 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -347,7 +347,7 @@ int smp_call_function_any(const struct cpumask *mask,
 		goto call;
 
 	/* Try for same node. */
-	nodemask = cpumask_of_node(cpu);
+	nodemask = cpumask_of_node(cpu_to_node(cpu));
 	for (cpu = cpumask_first_and(nodemask, mask); cpu < nr_cpu_ids;
 	     cpu = cpumask_next_and(cpu, nodemask, mask)) {
 		if (cpu_online(cpu))
--
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