diff options
Diffstat (limited to 'arch/i386/mm/init.c')
| -rw-r--r-- | arch/i386/mm/init.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/arch/i386/mm/init.c b/arch/i386/mm/init.c index 1b1a1e66d099..4c4809f13cb1 100644 --- a/arch/i386/mm/init.c +++ b/arch/i386/mm/init.c @@ -800,9 +800,17 @@ void mark_rodata_ro(void) unsigned long start = PFN_ALIGN(_text); unsigned long size = PFN_ALIGN(_etext) - start; - change_page_attr(virt_to_page(start), - size >> PAGE_SHIFT, PAGE_KERNEL_RX); - printk("Write protecting the kernel text: %luk\n", size >> 10); +#ifndef CONFIG_KPROBES +#ifdef CONFIG_HOTPLUG_CPU + /* It must still be possible to apply SMP alternatives. */ + if (num_possible_cpus() <= 1) +#endif + { + change_page_attr(virt_to_page(start), + size >> PAGE_SHIFT, PAGE_KERNEL_RX); + printk("Write protecting the kernel text: %luk\n", size >> 10); + } +#endif start += size; size = (unsigned long)__end_rodata - start; change_page_attr(virt_to_page(start), |