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[S390] smp: always reboot on cpu 0

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Always reboot on logical cpu 0. This makes sure that the IPL cpu is
always the same and usually avoids strange numbering schemes between
physical and logical cpus.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens
2010-02-26 22:37:34 +01:00
committed by Martin Schwidefsky
parent abd1ecf209
commit 2c2df118a6
7 changed files with 191 additions and 11 deletions
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12
arch/s390/include/asm/smp.h
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@@ -31,6 +31,18 @@ extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
extern struct save_area *zfcpdump_save_areas[NR_CPUS + 1];
extern void smp_switch_to_ipl_cpu(void (*func)(void *), void *);
extern void smp_switch_to_cpu(void (*)(void *), void *, unsigned long sp,
int from, int to);
extern void smp_restart_cpu(void);
#else /* CONFIG_SMP */
static inline void smp_switch_to_ipl_cpu(void (*func)(void *), void *data)
{
func(data);
}
#endif /* CONFIG_SMP */
#ifdef CONFIG_HOTPLUG_CPU