diff options
Diffstat (limited to 'arch/sparc64/kernel/smp.c')
| -rw-r--r-- | arch/sparc64/kernel/smp.c | 17 |
1 files changed, 4 insertions, 13 deletions
diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c index 5d90ee9aebf1..6efc03df51c3 100644 --- a/arch/sparc64/kernel/smp.c +++ b/arch/sparc64/kernel/smp.c @@ -39,7 +39,6 @@ #include <asm/starfire.h> #include <asm/tlb.h> -extern int linux_num_cpus; extern void calibrate_delay(void); /* Please don't make this stuff initdata!!! --DaveM */ @@ -168,6 +167,9 @@ void __init smp_callin(void) rmb(); cpu_set(cpuid, cpu_online_map); + + /* idle thread is expected to have preempt disabled */ + preempt_disable(); } void cpu_panic(void) @@ -1149,20 +1151,9 @@ void __init smp_cpus_done(unsigned int max_cpus) (bogosum/(5000/HZ))%100); } -/* This needn't do anything as we do not sleep the cpu - * inside of the idler task, so an interrupt is not needed - * to get a clean fast response. - * - * XXX Reverify this assumption... -DaveM - * - * Addendum: We do want it to do something for the signal - * delivery case, we detect that by just seeing - * if we are trying to send this to an idler or not. - */ void smp_send_reschedule(int cpu) { - if (cpu_data(cpu).idle_volume == 0) - smp_receive_signal(cpu); + smp_receive_signal(cpu); } /* This is a nop because we capture all other cpus |