From: Andrei Vagin <[email protected]> Wire timer_settime() syscall into time namespace virtualization.
sys_timer_settime() calls the ktime->timer_set() callback. Right now, common_timer_set() is the only implementation for the callback. There user-supplied timer's value is converted from timespec64 to ktime and then timens_ktime_to_host() can be used to convert namespace's time to the host time. Inside a time namespace kernel's time differ on a fixed offset from a user-supplied, but only absolute values (TIMER_ABSTIME) must be converted. Signed-off-by: Andrei Vagin <[email protected]> Co-developed-by: Dmitry Safonov <[email protected]> Signed-off-by: Dmitry Safonov <[email protected]> --- kernel/time/posix-timers.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c index 265fbc816520..c979e720a5a1 100644 --- a/kernel/time/posix-timers.c +++ b/kernel/time/posix-timers.c @@ -857,6 +857,8 @@ int common_timer_set(struct k_itimer *timr, int flags, timr->it_interval = timespec64_to_ktime(new_setting->it_interval); expires = timespec64_to_ktime(new_setting->it_value); + if (flags & TIMER_ABSTIME) + expires = timens_ktime_to_host(timr->it_clock, expires); sigev_none = timr->it_sigev_notify == SIGEV_NONE; kc->timer_arm(timr, expires, flags & TIMER_ABSTIME, sigev_none); -- 2.22.0
