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
37  * is disabled during the critical section. It also controls the size of
38  * the RCU grace period. So it needs to be upper-bound.
43  * Zero means infinite timeout - no checking done:
93 	unsigned long switch_count = t->nvcsw + t->nivcsw;  in check_hung_task()
99 	if (unlikely(READ_ONCE(t->__state) & TASK_FROZEN))  in check_hung_task()
110 	if (switch_count != t->last_switch_count) {  in check_hung_task()
111 		t->last_switch_count = switch_count;  in check_hung_task()
112 		t->last_switch_time = jiffies;  in check_hung_task()
115 	if (time_is_after_jiffies(t->last_switch_time + timeout * HZ))  in check_hung_task()
132 			sysctl_hung_task_warnings--;  in check_hung_task()
134 		       t->comm, t->pid, (jiffies - t->last_switch_time) / HZ);  in check_hung_task()
136 			print_tainted(), init_utsname()->release,  in check_hung_task()
137 			(int)strcspn(init_utsname()->version, " "),  in check_hung_task()
138 			init_utsname()->version);  in check_hung_task()
155  * periodically exit the critical section and enter a new one.
199 		if (!max_count--)  in check_hung_uninterruptible_tasks()
207 		 * skip the TASK_KILLABLE tasks -- these can be killed  in check_hung_uninterruptible_tasks()
208 		 * skip the TASK_IDLE tasks -- those are genuinely idle  in check_hung_uninterruptible_tasks()
210 		state = READ_ONCE(t->__state);  in check_hung_uninterruptible_tasks()
234 	return timeout ? last_checked - jiffies + timeout * HZ :  in hung_timeout_jiffies()
339 			      unsigned long action, void *hcpu)  in hungtask_pm_notify()  argument
341 	switch (action) {  in hungtask_pm_notify()