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x86, mce: Replace MCE_SELF_VECTOR by irq_work

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The MCE handler uses a special vector for self IPI to invoke
post-emergency processing in an interrupt context, e.g. call an
NMI-unsafe function, wakeup loggers, schedule time-consuming work for
recovery, etc.

This mechanism is now generalized by the following commit:

 > e360adbe29
 > Author: Peter Zijlstra <a.p.zijlstra@chello.nl>
 > Date:   Thu Oct 14 14:01:34 2010 +0800
 >
 >  irq_work: Add generic hardirq context callbacks
 >
 >  Provide a mechanism that allows running code in IRQ context. It is
 >  most useful for NMI code that needs to interact with the rest of the
 >  system -- like wakeup a task to drain buffers.
 :

So change to use provided generic mechanism.

Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Link: http://lkml.kernel.org/r/4DEED6B2.6080005@jp.fujitsu.com
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
This commit is contained in:
Hidetoshi Seto
2011-06-08 10:56:02 +09:00
committed by Borislav Petkov
parent 7639bfc753
commit b77e70bf35
6 changed files with 6 additions and 59 deletions
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3
arch/x86/kernel/irqinit.c
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@@ -272,9 +272,6 @@ static void __init apic_intr_init(void)
#ifdef CONFIG_X86_MCE_THRESHOLD
alloc_intr_gate(THRESHOLD_APIC_VECTOR, threshold_interrupt);
#endif
#if defined(CONFIG_X86_MCE) && defined(CONFIG_X86_LOCAL_APIC)
alloc_intr_gate(MCE_SELF_VECTOR, mce_self_interrupt);
#endif
#if defined(CONFIG_X86_64) || defined(CONFIG_X86_LOCAL_APIC)
/* self generated IPI for local APIC timer */