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-rw-r--r--kernel/time/alarmtimer.c7
-rw-r--r--kernel/time/hrtimer.c7
-rw-r--r--kernel/time/ntp.c6
-rw-r--r--kernel/time/posix-cpu-timers.c2
-rw-r--r--kernel/time/posix-stubs.c2
-rw-r--r--kernel/time/posix-timers.c55
-rw-r--r--kernel/time/posix-timers.h2
-rw-r--r--kernel/time/time.c31
-rw-r--r--kernel/time/timekeeping.c2
9 files changed, 72 insertions, 42 deletions
diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c
index 639321bf2e39..fa5de5e8de61 100644
--- a/kernel/time/alarmtimer.c
+++ b/kernel/time/alarmtimer.c
@@ -581,11 +581,11 @@ static void alarm_timer_rearm(struct k_itimer *timr)
* @timr: Pointer to the posixtimer data struct
* @now: Current time to forward the timer against
*/
-static int alarm_timer_forward(struct k_itimer *timr, ktime_t now)
+static s64 alarm_timer_forward(struct k_itimer *timr, ktime_t now)
{
struct alarm *alarm = &timr->it.alarm.alarmtimer;
- return (int) alarm_forward(alarm, timr->it_interval, now);
+ return alarm_forward(alarm, timr->it_interval, now);
}
/**
@@ -808,7 +808,8 @@ static int alarm_timer_nsleep(const clockid_t which_clock, int flags,
/* Convert (if necessary) to absolute time */
if (flags != TIMER_ABSTIME) {
ktime_t now = alarm_bases[type].gettime();
- exp = ktime_add(now, exp);
+
+ exp = ktime_add_safe(now, exp);
}
ret = alarmtimer_do_nsleep(&alarm, exp, type);
diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index 3e93c54bd3a1..e1a549c9e399 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -718,8 +718,8 @@ static void hrtimer_switch_to_hres(void)
struct hrtimer_cpu_base *base = this_cpu_ptr(&hrtimer_bases);
if (tick_init_highres()) {
- printk(KERN_WARNING "Could not switch to high resolution "
- "mode on CPU %d\n", base->cpu);
+ pr_warn("Could not switch to high resolution mode on CPU %u\n",
+ base->cpu);
return;
}
base->hres_active = 1;
@@ -1573,8 +1573,7 @@ retry:
else
expires_next = ktime_add(now, delta);
tick_program_event(expires_next, 1);
- printk_once(KERN_WARNING "hrtimer: interrupt took %llu ns\n",
- ktime_to_ns(delta));
+ pr_warn_once("hrtimer: interrupt took %llu ns\n", ktime_to_ns(delta));
}
/* called with interrupts disabled */
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index a09ded765f6c..10a79053e82f 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -502,7 +502,7 @@ static void sched_sync_hw_clock(struct timespec64 now,
{
struct timespec64 next;
- getnstimeofday64(&next);
+ ktime_get_real_ts64(&next);
if (!fail)
next.tv_sec = 659;
else {
@@ -537,7 +537,7 @@ static void sync_rtc_clock(void)
if (!IS_ENABLED(CONFIG_RTC_SYSTOHC))
return;
- getnstimeofday64(&now);
+ ktime_get_real_ts64(&now);
adjust = now;
if (persistent_clock_is_local)
@@ -591,7 +591,7 @@ static bool sync_cmos_clock(void)
* Architectures are strongly encouraged to use rtclib and not
* implement this legacy API.
*/
- getnstimeofday64(&now);
+ ktime_get_real_ts64(&now);
if (rtc_tv_nsec_ok(-1 * target_nsec, &adjust, &now)) {
if (persistent_clock_is_local)
adjust.tv_sec -= (sys_tz.tz_minuteswest * 60);
diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c
index 9cdf54b04ca8..294d7b65af33 100644
--- a/kernel/time/posix-cpu-timers.c
+++ b/kernel/time/posix-cpu-timers.c
@@ -85,7 +85,7 @@ static void bump_cpu_timer(struct k_itimer *timer, u64 now)
continue;
timer->it.cpu.expires += incr;
- timer->it_overrun += 1 << i;
+ timer->it_overrun += 1LL << i;
delta -= incr;
}
}
diff --git a/kernel/time/posix-stubs.c b/kernel/time/posix-stubs.c
index 26aa9569e24a..2c6847d5d69b 100644
--- a/kernel/time/posix-stubs.c
+++ b/kernel/time/posix-stubs.c
@@ -81,7 +81,7 @@ int do_clock_gettime(clockid_t which_clock, struct timespec64 *tp)
ktime_get_ts64(tp);
break;
case CLOCK_BOOTTIME:
- get_monotonic_boottime64(tp);
+ ktime_get_boottime_ts64(tp);
break;
default:
return -EINVAL;
diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c
index e08ce3f27447..3ac7295306dc 100644
--- a/kernel/time/posix-timers.c
+++ b/kernel/time/posix-timers.c
@@ -228,21 +228,21 @@ static int posix_ktime_get_ts(clockid_t which_clock, struct timespec64 *tp)
*/
static int posix_get_monotonic_raw(clockid_t which_clock, struct timespec64 *tp)
{
- getrawmonotonic64(tp);
+ ktime_get_raw_ts64(tp);
return 0;
}
static int posix_get_realtime_coarse(clockid_t which_clock, struct timespec64 *tp)
{
- *tp = current_kernel_time64();
+ ktime_get_coarse_real_ts64(tp);
return 0;
}
static int posix_get_monotonic_coarse(clockid_t which_clock,
struct timespec64 *tp)
{
- *tp = get_monotonic_coarse64();
+ ktime_get_coarse_ts64(tp);
return 0;
}
@@ -254,13 +254,13 @@ static int posix_get_coarse_res(const clockid_t which_clock, struct timespec64 *
static int posix_get_boottime(const clockid_t which_clock, struct timespec64 *tp)
{
- get_monotonic_boottime64(tp);
+ ktime_get_boottime_ts64(tp);
return 0;
}
static int posix_get_tai(clockid_t which_clock, struct timespec64 *tp)
{
- timekeeping_clocktai64(tp);
+ ktime_get_clocktai_ts64(tp);
return 0;
}
@@ -283,6 +283,17 @@ static __init int init_posix_timers(void)
}
__initcall(init_posix_timers);
+/*
+ * The siginfo si_overrun field and the return value of timer_getoverrun(2)
+ * are of type int. Clamp the overrun value to INT_MAX
+ */
+static inline int timer_overrun_to_int(struct k_itimer *timr, int baseval)
+{
+ s64 sum = timr->it_overrun_last + (s64)baseval;
+
+ return sum > (s64)INT_MAX ? INT_MAX : (int)sum;
+}
+
static void common_hrtimer_rearm(struct k_itimer *timr)
{
struct hrtimer *timer = &timr->it.real.timer;
@@ -290,9 +301,8 @@ static void common_hrtimer_rearm(struct k_itimer *timr)
if (!timr->it_interval)
return;
- timr->it_overrun += (unsigned int) hrtimer_forward(timer,
- timer->base->get_time(),
- timr->it_interval);
+ timr->it_overrun += hrtimer_forward(timer, timer->base->get_time(),
+ timr->it_interval);
hrtimer_restart(timer);
}
@@ -321,10 +331,10 @@ void posixtimer_rearm(struct siginfo *info)
timr->it_active = 1;
timr->it_overrun_last = timr->it_overrun;
- timr->it_overrun = -1;
+ timr->it_overrun = -1LL;
++timr->it_requeue_pending;
- info->si_overrun += timr->it_overrun_last;
+ info->si_overrun = timer_overrun_to_int(timr, info->si_overrun);
}
unlock_timer(timr, flags);
@@ -418,9 +428,8 @@ static enum hrtimer_restart posix_timer_fn(struct hrtimer *timer)
now = ktime_add(now, kj);
}
#endif
- timr->it_overrun += (unsigned int)
- hrtimer_forward(timer, now,
- timr->it_interval);
+ timr->it_overrun += hrtimer_forward(timer, now,
+ timr->it_interval);
ret = HRTIMER_RESTART;
++timr->it_requeue_pending;
timr->it_active = 1;
@@ -524,7 +533,7 @@ static int do_timer_create(clockid_t which_clock, struct sigevent *event,
new_timer->it_id = (timer_t) new_timer_id;
new_timer->it_clock = which_clock;
new_timer->kclock = kc;
- new_timer->it_overrun = -1;
+ new_timer->it_overrun = -1LL;
if (event) {
rcu_read_lock();
@@ -645,11 +654,11 @@ static ktime_t common_hrtimer_remaining(struct k_itimer *timr, ktime_t now)
return __hrtimer_expires_remaining_adjusted(timer, now);
}
-static int common_hrtimer_forward(struct k_itimer *timr, ktime_t now)
+static s64 common_hrtimer_forward(struct k_itimer *timr, ktime_t now)
{
struct hrtimer *timer = &timr->it.real.timer;
- return (int)hrtimer_forward(timer, now, timr->it_interval);
+ return hrtimer_forward(timer, now, timr->it_interval);
}
/*
@@ -743,7 +752,7 @@ static int do_timer_gettime(timer_t timer_id, struct itimerspec64 *setting)
/* Get the time remaining on a POSIX.1b interval timer. */
SYSCALL_DEFINE2(timer_gettime, timer_t, timer_id,
- struct itimerspec __user *, setting)
+ struct __kernel_itimerspec __user *, setting)
{
struct itimerspec64 cur_setting;
@@ -755,7 +764,8 @@ SYSCALL_DEFINE2(timer_gettime, timer_t, timer_id,
return ret;
}
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_COMPAT_32BIT_TIME
+
COMPAT_SYSCALL_DEFINE2(timer_gettime, timer_t, timer_id,
struct compat_itimerspec __user *, setting)
{
@@ -768,6 +778,7 @@ COMPAT_SYSCALL_DEFINE2(timer_gettime, timer_t, timer_id,
}
return ret;
}
+
#endif
/*
@@ -789,7 +800,7 @@ SYSCALL_DEFINE1(timer_getoverrun, timer_t, timer_id)
if (!timr)
return -EINVAL;
- overrun = timr->it_overrun_last;
+ overrun = timer_overrun_to_int(timr, 0);
unlock_timer(timr, flags);
return overrun;
@@ -906,8 +917,8 @@ retry:
/* Set a POSIX.1b interval timer */
SYSCALL_DEFINE4(timer_settime, timer_t, timer_id, int, flags,
- const struct itimerspec __user *, new_setting,
- struct itimerspec __user *, old_setting)
+ const struct __kernel_itimerspec __user *, new_setting,
+ struct __kernel_itimerspec __user *, old_setting)
{
struct itimerspec64 new_spec, old_spec;
struct itimerspec64 *rtn = old_setting ? &old_spec : NULL;
@@ -927,7 +938,7 @@ SYSCALL_DEFINE4(timer_settime, timer_t, timer_id, int, flags,
return error;
}
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_COMPAT_32BIT_TIME
COMPAT_SYSCALL_DEFINE4(timer_settime, timer_t, timer_id, int, flags,
struct compat_itimerspec __user *, new,
struct compat_itimerspec __user *, old)
diff --git a/kernel/time/posix-timers.h b/kernel/time/posix-timers.h
index 151e28f5bf30..ddb21145211a 100644
--- a/kernel/time/posix-timers.h
+++ b/kernel/time/posix-timers.h
@@ -19,7 +19,7 @@ struct k_clock {
void (*timer_get)(struct k_itimer *timr,
struct itimerspec64 *cur_setting);
void (*timer_rearm)(struct k_itimer *timr);
- int (*timer_forward)(struct k_itimer *timr, ktime_t now);
+ s64 (*timer_forward)(struct k_itimer *timr, ktime_t now);
ktime_t (*timer_remaining)(struct k_itimer *timr, ktime_t now);
int (*timer_try_to_cancel)(struct k_itimer *timr);
void (*timer_arm)(struct k_itimer *timr, ktime_t expires,
diff --git a/kernel/time/time.c b/kernel/time/time.c
index 2b41e8e2d31d..ccdb351277ee 100644
--- a/kernel/time/time.c
+++ b/kernel/time/time.c
@@ -64,7 +64,7 @@ EXPORT_SYMBOL(sys_tz);
*/
SYSCALL_DEFINE1(time, time_t __user *, tloc)
{
- time_t i = get_seconds();
+ time_t i = (time_t)ktime_get_real_seconds();
if (tloc) {
if (put_user(i,tloc))
@@ -107,11 +107,9 @@ SYSCALL_DEFINE1(stime, time_t __user *, tptr)
/* compat_time_t is a 32 bit "long" and needs to get converted. */
COMPAT_SYSCALL_DEFINE1(time, compat_time_t __user *, tloc)
{
- struct timeval tv;
compat_time_t i;
- do_gettimeofday(&tv);
- i = tv.tv_sec;
+ i = (compat_time_t)ktime_get_real_seconds();
if (tloc) {
if (put_user(i,tloc))
@@ -931,7 +929,7 @@ int compat_put_timespec64(const struct timespec64 *ts, void __user *uts)
EXPORT_SYMBOL_GPL(compat_put_timespec64);
int get_itimerspec64(struct itimerspec64 *it,
- const struct itimerspec __user *uit)
+ const struct __kernel_itimerspec __user *uit)
{
int ret;
@@ -946,7 +944,7 @@ int get_itimerspec64(struct itimerspec64 *it,
EXPORT_SYMBOL_GPL(get_itimerspec64);
int put_itimerspec64(const struct itimerspec64 *it,
- struct itimerspec __user *uit)
+ struct __kernel_itimerspec __user *uit)
{
int ret;
@@ -959,3 +957,24 @@ int put_itimerspec64(const struct itimerspec64 *it,
return ret;
}
EXPORT_SYMBOL_GPL(put_itimerspec64);
+
+int get_compat_itimerspec64(struct itimerspec64 *its,
+ const struct compat_itimerspec __user *uits)
+{
+
+ if (__compat_get_timespec64(&its->it_interval, &uits->it_interval) ||
+ __compat_get_timespec64(&its->it_value, &uits->it_value))
+ return -EFAULT;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(get_compat_itimerspec64);
+
+int put_compat_itimerspec64(const struct itimerspec64 *its,
+ struct compat_itimerspec __user *uits)
+{
+ if (__compat_put_timespec64(&its->it_interval, &uits->it_interval) ||
+ __compat_put_timespec64(&its->it_value, &uits->it_value))
+ return -EFAULT;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(put_compat_itimerspec64);
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 67720110dc33..ad779c2ec53a 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -2330,7 +2330,7 @@ int do_adjtimex(struct timex *txc)
return ret;
}
- getnstimeofday64(&ts);
+ ktime_get_real_ts64(&ts);
raw_spin_lock_irqsave(&timekeeper_lock, flags);
write_seqcount_begin(&tk_core.seq);
generated by cgit v1.2.3 (git 2.39.0) at 2024-09-06 08:04:59 +0300