powerpc/kexec: Disable hard IRQ before kexec

[linux-block.git] / arch / powerpc / kernel / machine_kexec_64.c

diff --git a/arch/powerpc/kernel/machine_kexec_64.c b/arch/powerpc/kernel/machine_kexec_64.c
index 7206701b1ff1cd5d7b58331128550c7ee1ac8cdf..466a2908bb634506e034cf63ab1da77b2036d95c 100644 (file)
--- a/arch/powerpc/kernel/machine_kexec_64.c
+++ b/arch/powerpc/kernel/machine_kexec_64.c
@@ -162,6 +162,8 @@ static int kexec_all_irq_disabled = 0;
 static void kexec_smp_down(void *arg)
 {
        local_irq_disable();
+       hard_irq_disable();
+
        mb(); /* make sure our irqs are disabled before we say they are */
        get_paca()->kexec_state = KEXEC_STATE_IRQS_OFF;
        while(kexec_all_irq_disabled == 0)
@@ -244,6 +246,8 @@ static void kexec_prepare_cpus(void)
        wake_offline_cpus();
        smp_call_function(kexec_smp_down, NULL, /* wait */0);
        local_irq_disable();
+       hard_irq_disable();
+
        mb(); /* make sure IRQs are disabled before we say they are */
        get_paca()->kexec_state = KEXEC_STATE_IRQS_OFF;
 
@@ -281,6 +285,7 @@ static void kexec_prepare_cpus(void)
        if (ppc_md.kexec_cpu_down)
                ppc_md.kexec_cpu_down(0, 0);
        local_irq_disable();
+       hard_irq_disable();
 }
 
 #endif /* SMP */