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[Xen-changelog] [xen-unstable] x86: During cpu offline, cpu_disable_sche
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| Subject: | [Xen-changelog] [xen-unstable] x86: During cpu offline, cpu_disable_scheduler() cannot fail. |
| From: | Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx> |
| Date: | Tue, 01 Jun 2010 06:00:53 -0700 |
| Delivery-date: | Tue, 01 Jun 2010 06:02:13 -0700 |
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# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1275397064 -3600
# Node ID 188e3da0aa2746f2f0cecce9f099a03554755125
# Parent 50991fc8e80135d9a92b2bfc4aebd82a22dcb838
x86: During cpu offline, cpu_disable_scheduler() cannot fail.
BUG on this scenario.
Signed-off-by: Keir Fraser <keir.fraser@xxxxxxxxxx>
---
xen/arch/x86/smpboot.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletion(-)
diff -r 50991fc8e801 -r 188e3da0aa27 xen/arch/x86/smpboot.c
--- a/xen/arch/x86/smpboot.c Tue Jun 01 11:04:08 2010 +0100
+++ b/xen/arch/x86/smpboot.c Tue Jun 01 13:57:44 2010 +0100
@@ -858,7 +858,8 @@ void __cpu_disable(void)
cpu_clear(cpu, cpu_online_map);
fixup_irqs();
- cpu_disable_scheduler(cpu);
+ if ( cpu_disable_scheduler(cpu) )
+ BUG();
}
void __cpu_die(unsigned int cpu)
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