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Diffstat (limited to 'kernel/time/posix-cpu-timers.c')
-rw-r--r--kernel/time/posix-cpu-timers.c87
1 files changed, 52 insertions, 35 deletions
diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c
index 4513ad16a253..d2a1e6dd0291 100644
--- a/kernel/time/posix-cpu-timers.c
+++ b/kernel/time/posix-cpu-timers.c
@@ -116,7 +116,7 @@ static inline u64 virt_ticks(struct task_struct *p)
}
static int
-posix_cpu_clock_getres(const clockid_t which_clock, struct timespec *tp)
+posix_cpu_clock_getres(const clockid_t which_clock, struct timespec64 *tp)
{
int error = check_clock(which_clock);
if (!error) {
@@ -135,7 +135,7 @@ posix_cpu_clock_getres(const clockid_t which_clock, struct timespec *tp)
}
static int
-posix_cpu_clock_set(const clockid_t which_clock, const struct timespec *tp)
+posix_cpu_clock_set(const clockid_t which_clock, const struct timespec64 *tp)
{
/*
* You can never reset a CPU clock, but we check for other errors
@@ -261,7 +261,7 @@ static int cpu_clock_sample_group(const clockid_t which_clock,
static int posix_cpu_clock_get_task(struct task_struct *tsk,
const clockid_t which_clock,
- struct timespec *tp)
+ struct timespec64 *tp)
{
int err = -EINVAL;
u64 rtn;
@@ -275,13 +275,13 @@ static int posix_cpu_clock_get_task(struct task_struct *tsk,
}
if (!err)
- *tp = ns_to_timespec(rtn);
+ *tp = ns_to_timespec64(rtn);
return err;
}
-static int posix_cpu_clock_get(const clockid_t which_clock, struct timespec *tp)
+static int posix_cpu_clock_get(const clockid_t which_clock, struct timespec64 *tp)
{
const pid_t pid = CPUCLOCK_PID(which_clock);
int err = -EINVAL;
@@ -562,7 +562,7 @@ static int cpu_timer_sample_group(const clockid_t which_clock,
* and try again. (This happens when the timer is in the middle of firing.)
*/
static int posix_cpu_timer_set(struct k_itimer *timer, int timer_flags,
- struct itimerspec *new, struct itimerspec *old)
+ struct itimerspec64 *new, struct itimerspec64 *old)
{
unsigned long flags;
struct sighand_struct *sighand;
@@ -572,7 +572,7 @@ static int posix_cpu_timer_set(struct k_itimer *timer, int timer_flags,
WARN_ON_ONCE(p == NULL);
- new_expires = timespec_to_ns(&new->it_value);
+ new_expires = timespec64_to_ns(&new->it_value);
/*
* Protect against sighand release/switch in exit/exec and p->cpu_timers
@@ -633,7 +633,7 @@ static int posix_cpu_timer_set(struct k_itimer *timer, int timer_flags,
bump_cpu_timer(timer, val);
if (val < timer->it.cpu.expires) {
old_expires = timer->it.cpu.expires - val;
- old->it_value = ns_to_timespec(old_expires);
+ old->it_value = ns_to_timespec64(old_expires);
} else {
old->it_value.tv_nsec = 1;
old->it_value.tv_sec = 0;
@@ -671,7 +671,7 @@ static int posix_cpu_timer_set(struct k_itimer *timer, int timer_flags,
* Install the new reload setting, and
* set up the signal and overrun bookkeeping.
*/
- timer->it.cpu.incr = timespec_to_ns(&new->it_interval);
+ timer->it.cpu.incr = timespec64_to_ns(&new->it_interval);
/*
* This acts as a modification timestamp for the timer,
@@ -695,12 +695,12 @@ static int posix_cpu_timer_set(struct k_itimer *timer, int timer_flags,
ret = 0;
out:
if (old)
- old->it_interval = ns_to_timespec(old_incr);
+ old->it_interval = ns_to_timespec64(old_incr);
return ret;
}
-static void posix_cpu_timer_get(struct k_itimer *timer, struct itimerspec *itp)
+static void posix_cpu_timer_get(struct k_itimer *timer, struct itimerspec64 *itp)
{
u64 now;
struct task_struct *p = timer->it.cpu.task;
@@ -710,7 +710,7 @@ static void posix_cpu_timer_get(struct k_itimer *timer, struct itimerspec *itp)
/*
* Easy part: convert the reload time.
*/
- itp->it_interval = ns_to_timespec(timer->it.cpu.incr);
+ itp->it_interval = ns_to_timespec64(timer->it.cpu.incr);
if (timer->it.cpu.expires == 0) { /* Timer not armed at all. */
itp->it_value.tv_sec = itp->it_value.tv_nsec = 0;
@@ -739,7 +739,7 @@ static void posix_cpu_timer_get(struct k_itimer *timer, struct itimerspec *itp)
* Call the timer disarmed, nothing else to do.
*/
timer->it.cpu.expires = 0;
- itp->it_value = ns_to_timespec(timer->it.cpu.expires);
+ itp->it_value = ns_to_timespec64(timer->it.cpu.expires);
return;
} else {
cpu_timer_sample_group(timer->it_clock, p, &now);
@@ -748,7 +748,7 @@ static void posix_cpu_timer_get(struct k_itimer *timer, struct itimerspec *itp)
}
if (now < timer->it.cpu.expires) {
- itp->it_value = ns_to_timespec(timer->it.cpu.expires - now);
+ itp->it_value = ns_to_timespec64(timer->it.cpu.expires - now);
} else {
/*
* The timer should have expired already, but the firing
@@ -825,6 +825,10 @@ static void check_thread_timers(struct task_struct *tsk,
* At the hard limit, we just die.
* No need to calculate anything else now.
*/
+ if (print_fatal_signals) {
+ pr_info("CPU Watchdog Timeout (hard): %s[%d]\n",
+ tsk->comm, task_pid_nr(tsk));
+ }
__group_send_sig_info(SIGKILL, SEND_SIG_PRIV, tsk);
return;
}
@@ -836,9 +840,10 @@ static void check_thread_timers(struct task_struct *tsk,
soft += USEC_PER_SEC;
sig->rlim[RLIMIT_RTTIME].rlim_cur = soft;
}
- printk(KERN_INFO
- "RT Watchdog Timeout: %s[%d]\n",
- tsk->comm, task_pid_nr(tsk));
+ if (print_fatal_signals) {
+ pr_info("RT Watchdog Timeout (soft): %s[%d]\n",
+ tsk->comm, task_pid_nr(tsk));
+ }
__group_send_sig_info(SIGXCPU, SEND_SIG_PRIV, tsk);
}
}
@@ -935,6 +940,10 @@ static void check_process_timers(struct task_struct *tsk,
* At the hard limit, we just die.
* No need to calculate anything else now.
*/
+ if (print_fatal_signals) {
+ pr_info("RT Watchdog Timeout (hard): %s[%d]\n",
+ tsk->comm, task_pid_nr(tsk));
+ }
__group_send_sig_info(SIGKILL, SEND_SIG_PRIV, tsk);
return;
}
@@ -942,6 +951,10 @@ static void check_process_timers(struct task_struct *tsk,
/*
* At the soft limit, send a SIGXCPU every second.
*/
+ if (print_fatal_signals) {
+ pr_info("CPU Watchdog Timeout (soft): %s[%d]\n",
+ tsk->comm, task_pid_nr(tsk));
+ }
__group_send_sig_info(SIGXCPU, SEND_SIG_PRIV, tsk);
if (soft < hard) {
soft++;
@@ -1214,7 +1227,7 @@ void set_process_cpu_timer(struct task_struct *tsk, unsigned int clock_idx,
}
static int do_cpu_nanosleep(const clockid_t which_clock, int flags,
- struct timespec *rqtp, struct itimerspec *it)
+ struct timespec64 *rqtp, struct itimerspec64 *it)
{
struct k_itimer timer;
int error;
@@ -1229,7 +1242,7 @@ static int do_cpu_nanosleep(const clockid_t which_clock, int flags,
error = posix_cpu_timer_create(&timer);
timer.it_process = current;
if (!error) {
- static struct itimerspec zero_it;
+ static struct itimerspec64 zero_it;
memset(it, 0, sizeof *it);
it->it_value = *rqtp;
@@ -1264,7 +1277,7 @@ static int do_cpu_nanosleep(const clockid_t which_clock, int flags,
/*
* We were interrupted by a signal.
*/
- *rqtp = ns_to_timespec(timer.it.cpu.expires);
+ *rqtp = ns_to_timespec64(timer.it.cpu.expires);
error = posix_cpu_timer_set(&timer, 0, &zero_it, it);
if (!error) {
/*
@@ -1301,10 +1314,11 @@ static int do_cpu_nanosleep(const clockid_t which_clock, int flags,
static long posix_cpu_nsleep_restart(struct restart_block *restart_block);
static int posix_cpu_nsleep(const clockid_t which_clock, int flags,
- struct timespec *rqtp, struct timespec __user *rmtp)
+ struct timespec64 *rqtp, struct timespec __user *rmtp)
{
struct restart_block *restart_block = &current->restart_block;
- struct itimerspec it;
+ struct itimerspec64 it;
+ struct timespec ts;
int error;
/*
@@ -1312,7 +1326,7 @@ static int posix_cpu_nsleep(const clockid_t which_clock, int flags,
*/
if (CPUCLOCK_PERTHREAD(which_clock) &&
(CPUCLOCK_PID(which_clock) == 0 ||
- CPUCLOCK_PID(which_clock) == current->pid))
+ CPUCLOCK_PID(which_clock) == task_pid_vnr(current)))
return -EINVAL;
error = do_cpu_nanosleep(which_clock, flags, rqtp, &it);
@@ -1324,13 +1338,14 @@ static int posix_cpu_nsleep(const clockid_t which_clock, int flags,
/*
* Report back to the user the time still remaining.
*/
- if (rmtp && copy_to_user(rmtp, &it.it_value, sizeof *rmtp))
+ ts = timespec64_to_timespec(it.it_value);
+ if (rmtp && copy_to_user(rmtp, &ts, sizeof(*rmtp)))
return -EFAULT;
restart_block->fn = posix_cpu_nsleep_restart;
restart_block->nanosleep.clockid = which_clock;
restart_block->nanosleep.rmtp = rmtp;
- restart_block->nanosleep.expires = timespec_to_ns(rqtp);
+ restart_block->nanosleep.expires = timespec64_to_ns(rqtp);
}
return error;
}
@@ -1338,11 +1353,12 @@ static int posix_cpu_nsleep(const clockid_t which_clock, int flags,
static long posix_cpu_nsleep_restart(struct restart_block *restart_block)
{
clockid_t which_clock = restart_block->nanosleep.clockid;
- struct timespec t;
- struct itimerspec it;
+ struct itimerspec64 it;
+ struct timespec64 t;
+ struct timespec tmp;
int error;
- t = ns_to_timespec(restart_block->nanosleep.expires);
+ t = ns_to_timespec64(restart_block->nanosleep.expires);
error = do_cpu_nanosleep(which_clock, TIMER_ABSTIME, &t, &it);
@@ -1351,10 +1367,11 @@ static long posix_cpu_nsleep_restart(struct restart_block *restart_block)
/*
* Report back to the user the time still remaining.
*/
- if (rmtp && copy_to_user(rmtp, &it.it_value, sizeof *rmtp))
+ tmp = timespec64_to_timespec(it.it_value);
+ if (rmtp && copy_to_user(rmtp, &tmp, sizeof(*rmtp)))
return -EFAULT;
- restart_block->nanosleep.expires = timespec_to_ns(&t);
+ restart_block->nanosleep.expires = timespec64_to_ns(&t);
}
return error;
@@ -1364,12 +1381,12 @@ static long posix_cpu_nsleep_restart(struct restart_block *restart_block)
#define THREAD_CLOCK MAKE_THREAD_CPUCLOCK(0, CPUCLOCK_SCHED)
static int process_cpu_clock_getres(const clockid_t which_clock,
- struct timespec *tp)
+ struct timespec64 *tp)
{
return posix_cpu_clock_getres(PROCESS_CLOCK, tp);
}
static int process_cpu_clock_get(const clockid_t which_clock,
- struct timespec *tp)
+ struct timespec64 *tp)
{
return posix_cpu_clock_get(PROCESS_CLOCK, tp);
}
@@ -1379,7 +1396,7 @@ static int process_cpu_timer_create(struct k_itimer *timer)
return posix_cpu_timer_create(timer);
}
static int process_cpu_nsleep(const clockid_t which_clock, int flags,
- struct timespec *rqtp,
+ struct timespec64 *rqtp,
struct timespec __user *rmtp)
{
return posix_cpu_nsleep(PROCESS_CLOCK, flags, rqtp, rmtp);
@@ -1389,12 +1406,12 @@ static long process_cpu_nsleep_restart(struct restart_block *restart_block)
return -EINVAL;
}
static int thread_cpu_clock_getres(const clockid_t which_clock,
- struct timespec *tp)
+ struct timespec64 *tp)
{
return posix_cpu_clock_getres(THREAD_CLOCK, tp);
}
static int thread_cpu_clock_get(const clockid_t which_clock,
- struct timespec *tp)
+ struct timespec64 *tp)
{
return posix_cpu_clock_get(THREAD_CLOCK, tp);
}
generated by cgit (git 2.34.1) at 2024-05-26 18:02:32 +0000