[Xen-devel] [PATCH] solve spinlock bug in s3 cpufreq path

["Tian, Kevin" <kevin.tian@xxxxxxxxx>]

solve spinlock bug in s3 cpufreq path.

Signed-off-by Kevin Tian <kevin.tian@xxxxxxxxx>

diff -r ae18e0ffa801 xen/arch/x86/smpboot.c
--- a/xen/arch/x86/smpboot.c    Wed Feb 04 20:03:08 2009 -0500
+++ b/xen/arch/x86/smpboot.c    Wed Feb 04 22:41:20 2009 -0500
@@ -1256,8 +1256,6 @@
        mdelay(1);
        local_irq_disable();
 
-       cpufreq_del_cpu(cpu);
-
        time_suspend();
 
        cpu_mcheck_disable();
@@ -1320,6 +1318,8 @@
        }
 
        printk("Prepare to bring CPU%d down...\n", cpu);
+
+       cpufreq_del_cpu(cpu);
 
        err = stop_machine_run(take_cpu_down, NULL, cpu);
        if (err < 0)

Attachment: s3_cpufreq_spinlock.patch
Description: s3_cpufreq_spinlock.patch

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