diff options
Diffstat (limited to 'init/main.c')
| -rw-r--r-- | init/main.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/init/main.c b/init/main.c index 99ce94930b0..833a67df1f7 100644 --- a/init/main.c +++ b/init/main.c @@ -359,10 +359,31 @@ static void __init smp_init(void) #endif static inline void setup_per_cpu_areas(void) { } +static inline void setup_nr_cpu_ids(void) { } static inline void smp_prepare_cpus(unsigned int maxcpus) { } #else +#if NR_CPUS > BITS_PER_LONG +cpumask_t cpu_mask_all __read_mostly = CPU_MASK_ALL; +EXPORT_SYMBOL(cpu_mask_all); +#endif + +/* Setup number of possible processor ids */ +int nr_cpu_ids __read_mostly = NR_CPUS; +EXPORT_SYMBOL(nr_cpu_ids); + +/* An arch may set nr_cpu_ids earlier if needed, so this would be redundant */ +static void __init setup_nr_cpu_ids(void) +{ + int cpu, highest_cpu = 0; + + for_each_possible_cpu(cpu) + highest_cpu = cpu; + + nr_cpu_ids = highest_cpu + 1; +} + #ifndef CONFIG_HAVE_SETUP_PER_CPU_AREA unsigned long __per_cpu_offset[NR_CPUS] __read_mostly; @@ -537,6 +558,7 @@ asmlinkage void __init start_kernel(void) setup_command_line(command_line); unwind_setup(); setup_per_cpu_areas(); + setup_nr_cpu_ids(); smp_prepare_boot_cpu(); /* arch-specific boot-cpu hooks */ /* @@ -811,7 +833,7 @@ static int __init kernel_init(void * unused) /* * init can run on any cpu. */ - set_cpus_allowed(current, CPU_MASK_ALL); + set_cpus_allowed_ptr(current, CPU_MASK_ALL_PTR); /* * Tell the world that we're going to be the grim * reaper of innocent orphaned children. |