diff options
Diffstat (limited to 'arch/powerpc/kernel/smp.c')
| -rw-r--r-- | arch/powerpc/kernel/smp.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index 1069f74fca47..c6b8bace1766 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -33,6 +33,7 @@ #include <linux/notifier.h> #include <linux/topology.h> #include <linux/profile.h> +#include <linux/processor.h> #include <asm/ptrace.h> #include <linux/atomic.h> @@ -112,7 +113,8 @@ int smp_generic_cpu_bootable(unsigned int nr) #ifdef CONFIG_PPC64 int smp_generic_kick_cpu(int nr) { - BUG_ON(nr < 0 || nr >= NR_CPUS); + if (nr < 0 || nr >= nr_cpu_ids) + return -EINVAL; /* * The processor is currently spinning, waiting for the @@ -766,8 +768,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle) smp_ops->give_timebase(); /* Wait until cpu puts itself in the online & active maps */ - while (!cpu_online(cpu)) - cpu_relax(); + spin_until_cond(cpu_online(cpu)); return 0; } |