diff options
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/process_64.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index d864038..9e69e22 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -146,6 +146,15 @@ static inline void play_dead(void) void cpu_idle(void) { current_thread_info()->status |= TS_POLLING; + +#ifdef CONFIG_CC_STACKPROTECTOR + /* + * If we're the non-boot CPU, nothing set the PDA stack + * canary up for us. This is as good a place as any for + * doing that. + */ + write_pda(stack_canary, current->stack_canary); +#endif /* endless idle loop with no priority at all */ while (1) { tick_nohz_stop_sched_tick(); |