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| author |   Heiko Carstens <heiko.carstens@de.ibm.com> | 2011-01-05 12:48:09 +0100 |
|---|---|---|
| committer |   Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2011-01-05 12:47:30 +0100 |
| commit | da7f51c11d5fedca9ba779ee220063ccb4f0a27e (patch) | |
| tree | a8cd6d843e72128ad6bfef0f19ef601f27f56ba9 /arch/s390/include/asm/smp.h | |
| parent | [S390] smp: delay idle task creation (diff) | |
| download | linux-dev-da7f51c11d5fedca9ba779ee220063ccb4f0a27e.tar.xz linux-dev-da7f51c11d5fedca9ba779ee220063ccb4f0a27e.zip | |
[S390] smp/idle: call init_idle() before starting a new cpu
Call init_idle() which (re-)initializes the idle task structure before
it gets used on a new cpu.
That way we can also get rid of the odd preempt_enable_no_resched()
call we have in the cpu offline path within cpu_idle(). That call
prevented preempt count imbalances between cpu hotplug operations.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/smp.h')
| -rw-r--r-- | arch/s390/include/asm/smp.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/s390/include/asm/smp.h b/arch/s390/include/asm/smp.h index edc03cb9cd79..045e009fc164 100644 --- a/arch/s390/include/asm/smp.h +++ b/arch/s390/include/asm/smp.h @@ -20,7 +20,6 @@ extern void machine_power_off_smp(void); extern int __cpu_disable (void); extern void __cpu_die (unsigned int cpu); -extern void cpu_die (void) __attribute__ ((noreturn)); extern int __cpu_up (unsigned int cpu); extern struct mutex smp_cpu_state_mutex; @@ -71,8 +70,10 @@ static inline void smp_switch_to_ipl_cpu(void (*func)(void *), void *data) #ifdef CONFIG_HOTPLUG_CPU extern int smp_rescan_cpus(void); +extern void __noreturn cpu_die(void); #else static inline int smp_rescan_cpus(void) { return 0; } +static inline void cpu_die(void) { } #endif #endif /* __ASM_SMP_H */ |