diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/posix-timers.h | 2 | ||||
| -rw-r--r-- | include/linux/sched/signal.h | 1 | ||||
| -rw-r--r-- | include/uapi/linux/prctl.h | 11 |
3 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/posix-timers.h b/include/linux/posix-timers.h index 094ef5778c0f..dd48c64b605e 100644 --- a/include/linux/posix-timers.h +++ b/include/linux/posix-timers.h @@ -114,6 +114,7 @@ bool posixtimer_init_sigqueue(struct sigqueue *q); void posixtimer_send_sigqueue(struct k_itimer *tmr); bool posixtimer_deliver_signal(struct kernel_siginfo *info, struct sigqueue *timer_sigq); void posixtimer_free_timer(struct k_itimer *timer); +long posixtimer_create_prctl(unsigned long ctrl); /* Init task static initializer */ #define INIT_CPU_TIMERBASE(b) { \ @@ -140,6 +141,7 @@ static inline void posixtimer_rearm_itimer(struct task_struct *p) { } static inline bool posixtimer_deliver_signal(struct kernel_siginfo *info, struct sigqueue *timer_sigq) { return false; } static inline void posixtimer_free_timer(struct k_itimer *timer) { } +static inline long posixtimer_create_prctl(unsigned long ctrl) { return -EINVAL; } #endif #ifdef CONFIG_POSIX_CPU_TIMERS_TASK_WORK diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h index 72649d7fce2a..1ef1edbaaf79 100644 --- a/include/linux/sched/signal.h +++ b/include/linux/sched/signal.h @@ -136,6 +136,7 @@ struct signal_struct { #ifdef CONFIG_POSIX_TIMERS /* POSIX.1b Interval Timers */ + unsigned int timer_create_restore_ids:1; atomic_t next_posix_timer_id; struct hlist_head posix_timers; struct hlist_head ignored_posix_timers; diff --git a/include/uapi/linux/prctl.h b/include/uapi/linux/prctl.h index 5c6080680cb2..15c18ef4eb11 100644 --- a/include/uapi/linux/prctl.h +++ b/include/uapi/linux/prctl.h @@ -353,4 +353,15 @@ struct prctl_mm_map { */ #define PR_LOCK_SHADOW_STACK_STATUS 76 +/* + * Controls the mode of timer_create() for CRIU restore operations. + * Enabling this allows CRIU to restore timers with explicit IDs. + * + * Don't use for normal operations as the result might be undefined. + */ +#define PR_TIMER_CREATE_RESTORE_IDS 77 +# define PR_TIMER_CREATE_RESTORE_IDS_OFF 0 +# define PR_TIMER_CREATE_RESTORE_IDS_ON 1 +# define PR_TIMER_CREATE_RESTORE_IDS_GET 2 + #endif /* _LINUX_PRCTL_H */ |