Lines Matching +full:critical +full:- +full:action

1 // SPDX-License-Identifier: GPL-2.0-only
5  * kernel/hung_task.c - kernel thread for detecting tasks stuck in D state
42  * is disabled during the critical section. It also controls the size of
43  * the RCU grace period. So it needs to be upper-bound.
48  * Zero means infinite timeout - no checking done:
98 	unsigned long switch_count = t->nvcsw + t->nivcsw;  in check_hung_task()
104 	if (unlikely(READ_ONCE(t->__state) & TASK_FROZEN))  in check_hung_task()
115 	if (switch_count != t->last_switch_count) {  in check_hung_task()
116 		t->last_switch_count = switch_count;  in check_hung_task()
117 		t->last_switch_time = jiffies;  in check_hung_task()
120 	if (time_is_after_jiffies(t->last_switch_time + timeout * HZ))  in check_hung_task()
143 			sysctl_hung_task_warnings--;  in check_hung_task()
145 		       t->comm, t->pid, (jiffies - t->last_switch_time) / HZ);  in check_hung_task()
147 			print_tainted(), init_utsname()->release,  in check_hung_task()
148 			(int)strcspn(init_utsname()->version, " "),  in check_hung_task()
149 			init_utsname()->version);  in check_hung_task()
150 		if (t->flags & PF_POSTCOREDUMP)  in check_hung_task()
168  * periodically exit the critical section and enter a new one.
212 		if (!max_count--)  in check_hung_uninterruptible_tasks()
220 		 * skip the TASK_KILLABLE tasks -- these can be killed  in check_hung_uninterruptible_tasks()
221 		 * skip the TASK_IDLE tasks -- those are genuinely idle  in check_hung_uninterruptible_tasks()
223 		state = READ_ONCE(t->__state);  in check_hung_uninterruptible_tasks()
247 	return timeout ? last_checked - jiffies + timeout * HZ :  in hung_timeout_jiffies()
359 			      unsigned long action, void *hcpu)  in hungtask_pm_notify()  argument
361 	switch (action) {  in hungtask_pm_notify()