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[PATCH] i386/x86-64: Remove un/set_nmi_callback and reserve/release_lapic_nmi functions

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Removes the un/set_nmi_callback and reserve/release_lapic_nmi functions as
they are no longer needed.  The various subsystems are modified to register
with the die_notifier instead.

Also includes compile fixes by Andrew Morton.

Signed-off-by:  Don Zickus <dzickus@redhat.com>
Signed-off-by: Andi Kleen <ak@suse.de>
This commit is contained in:
Don Zickus
2006-09-26 10:52:27 +02:00
committed by Andi Kleen
parent 957dc87c1b
commit 2fbe7b25c8
10 changed files with 116 additions and 260 deletions
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20
arch/i386/kernel/crash.c
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@@ -22,6 +22,8 @@
#include <asm/nmi.h>
#include <asm/hw_irq.h>
#include <asm/apic.h>
#include <asm/kdebug.h>
#include <mach_ipi.h>
@@ -93,9 +95,18 @@ static void crash_save_self(struct pt_regs *regs)
#if defined(CONFIG_SMP) && defined(CONFIG_X86_LOCAL_APIC)
static atomic_t waiting_for_crash_ipi;
static int crash_nmi_callback(struct pt_regs *regs, int cpu)
static int crash_nmi_callback(struct notifier_block *self,
unsigned long val, void *data)
{
struct pt_regs *regs;
struct pt_regs fixed_regs;
int cpu;
if (val != DIE_NMI)
return NOTIFY_OK;
regs = ((struct die_args *)data)->regs;
cpu = raw_smp_processor_id();
/* Don't do anything if this handler is invoked on crashing cpu.
* Otherwise, system will completely hang. Crashing cpu can get
@@ -125,13 +136,18 @@ static void smp_send_nmi_allbutself(void)
send_IPI_allbutself(NMI_VECTOR);
}
static struct notifier_block crash_nmi_nb = {
.notifier_call = crash_nmi_callback,
};
static void nmi_shootdown_cpus(void)
{
unsigned long msecs;
atomic_set(&waiting_for_crash_ipi, num_online_cpus() - 1);
/* Would it be better to replace the trap vector here? */
set_nmi_callback(crash_nmi_callback);
if (register_die_notifier(&crash_nmi_nb))
return; /* return what? */
/* Ensure the new callback function is set before sending
* out the NMI
*/