diff options
Diffstat (limited to 'arch/i386/mm')
| -rw-r--r-- | arch/i386/mm/init.c | 16 | ||||
| -rw-r--r-- | arch/i386/mm/pageattr.c | 2 |
2 files changed, 13 insertions, 5 deletions
diff --git a/arch/i386/mm/init.c b/arch/i386/mm/init.c index 1b1a1e66d099..730a5b177b1f 100644 --- a/arch/i386/mm/init.c +++ b/arch/i386/mm/init.c @@ -432,7 +432,7 @@ static void __init pagetable_init (void) paravirt_pagetable_setup_done(pgd_base); } -#if defined(CONFIG_SOFTWARE_SUSPEND) || defined(CONFIG_ACPI) +#if defined(CONFIG_HIBERNATION) || defined(CONFIG_ACPI) /* * Swap suspend & friends need this for resume because things like the intel-agp * driver might have split up a kernel 4MB mapping. @@ -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), diff --git a/arch/i386/mm/pageattr.c b/arch/i386/mm/pageattr.c index 8927222b3ab2..4241a74d16c8 100644 --- a/arch/i386/mm/pageattr.c +++ b/arch/i386/mm/pageattr.c @@ -82,7 +82,7 @@ static void flush_kernel_map(void *arg) struct page *p; /* High level code is not ready for clflush yet */ - if (cpu_has_clflush) { + if (0 && cpu_has_clflush) { list_for_each_entry (p, lh, lru) cache_flush_page(p); } else if (boot_cpu_data.x86_model >= 4) |