diff options
Diffstat (limited to 'arch/x86_64/kernel/setup64.c')
| -rw-r--r-- | arch/x86_64/kernel/setup64.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/x86_64/kernel/setup64.c b/arch/x86_64/kernel/setup64.c index 34082c1cc41e..79190891fbc5 100644 --- a/arch/x86_64/kernel/setup64.c +++ b/arch/x86_64/kernel/setup64.c @@ -36,7 +36,7 @@ struct desc_ptr idt_descr = { 256 * 16, (unsigned long) idt_table }; char boot_cpu_stack[IRQSTACKSIZE] __attribute__((section(".bss.page_aligned"))); -unsigned long __supported_pte_mask = ~0UL; +unsigned long __supported_pte_mask __read_mostly = ~0UL; static int do_not_nx __initdata = 0; /* noexec=on|off @@ -87,6 +87,10 @@ void __init setup_per_cpu_areas(void) int i; unsigned long size; +#ifdef CONFIG_HOTPLUG_CPU + prefill_possible_map(); +#endif + /* Copy section for each CPU (we discard the original) */ size = ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES); #ifdef CONFIG_MODULES @@ -94,7 +98,7 @@ void __init setup_per_cpu_areas(void) size = PERCPU_ENOUGH_ROOM; #endif - for (i = 0; i < NR_CPUS; i++) { + for_each_cpu_mask (i, cpu_possible_map) { char *ptr; if (!NODE_DATA(cpu_to_node(i))) { @@ -119,7 +123,6 @@ void pda_init(int cpu) asm volatile("movl %0,%%fs ; movl %0,%%gs" :: "r" (0)); wrmsrl(MSR_GS_BASE, cpu_pda + cpu); - pda->me = pda; pda->cpunumber = cpu; pda->irqcount = -1; pda->kernelstack = |