diff options
Diffstat (limited to 'arch/x86_64/kernel/acpi/sleep.c')
| -rw-r--r-- | arch/x86_64/kernel/acpi/sleep.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86_64/kernel/acpi/sleep.c b/arch/x86_64/kernel/acpi/sleep.c index 23178ce6c783..e1548fbe95ae 100644 --- a/arch/x86_64/kernel/acpi/sleep.c +++ b/arch/x86_64/kernel/acpi/sleep.c @@ -66,8 +66,10 @@ static void init_low_mapping(void) { pgd_t *slot0 = pgd_offset(current->mm, 0UL); low_ptr = *slot0; + /* FIXME: We're playing with the current task's page tables here, which + * is potentially dangerous on SMP systems. + */ set_pgd(slot0, *pgd_offset(current->mm, PAGE_OFFSET)); - WARN_ON(num_online_cpus() != 1); local_flush_tlb(); } |