133 struct task_struct *find_lock_task_mm(struct task_struct *p)  in find_lock_task_mm()  argument
139 	for_each_thread(p, t) {  in find_lock_task_mm()
162 static bool oom_unkillable_task(struct task_struct *p)  in oom_unkillable_task()  argument
164 	if (is_global_init(p))  in oom_unkillable_task()
166 	if (p->flags & PF_KTHREAD)  in oom_unkillable_task()
201 long oom_badness(struct task_struct *p, unsigned long totalpages)  in oom_badness()  argument
206 	if (oom_unkillable_task(p))  in oom_badness()
209 	p = find_lock_task_mm(p);  in oom_badness()
210 	if (!p)  in oom_badness()
218 	adj = (long)p->signal->oom_score_adj;  in oom_badness()
220 			test_bit(MMF_OOM_SKIP, &p->mm->flags) ||  in oom_badness()
221 			in_vfork(p)) {  in oom_badness()
222 		task_unlock(p);  in oom_badness()
230 	points = get_mm_rss(p->mm) + get_mm_counter(p->mm, MM_SWAPENTS) +  in oom_badness()
231 		mm_pgtables_bytes(p->mm) / PAGE_SIZE;  in oom_badness()
232 	task_unlock(p);  in oom_badness()
371 		struct task_struct *p;  in select_bad_process()  local
374 		for_each_process(p)  in select_bad_process()
375 			if (oom_evaluate_task(p, oc))  in select_bad_process()
381 static int dump_task(struct task_struct *p, void *arg)  in dump_task()  argument
386 	if (oom_unkillable_task(p))  in dump_task()
390 	if (!is_memcg_oom(oc) && !oom_cpuset_eligible(p, oc))  in dump_task()
393 	task = find_lock_task_mm(p);  in dump_task()
431 		struct task_struct *p;  in dump_tasks()  local
434 		for_each_process(p)  in dump_tasks()
435 			dump_task(p, oc);  in dump_tasks()
452 static void dump_header(struct oom_control *oc, struct task_struct *p)  in dump_header()  argument
470 	if (p)  in dump_header()
471 		dump_oom_summary(oc, p);  in dump_header()
488 bool process_shares_mm(struct task_struct *p, struct mm_struct *mm)  in process_shares_mm()  argument
492 	for_each_thread(p, t) {  in process_shares_mm()
870 	struct task_struct *p;  in task_will_free_mem()  local
900 	for_each_process(p) {  in task_will_free_mem()
901 		if (!process_shares_mm(p, mm))  in task_will_free_mem()
903 		if (same_thread_group(task, p))  in task_will_free_mem()
905 		ret = __task_will_free_mem(p);  in task_will_free_mem()
916 	struct task_struct *p;  in __oom_kill_process()  local
920 	p = find_lock_task_mm(victim);  in __oom_kill_process()
921 	if (!p) {  in __oom_kill_process()
926 	} else if (victim != p) {  in __oom_kill_process()
927 		get_task_struct(p);  in __oom_kill_process()
929 		victim = p;  in __oom_kill_process()
966 	for_each_process(p) {  in __oom_kill_process()
967 		if (!process_shares_mm(p, mm))  in __oom_kill_process()
969 		if (same_thread_group(p, victim))  in __oom_kill_process()
971 		if (is_global_init(p)) {  in __oom_kill_process()
976 					task_pid_nr(p), p->comm);  in __oom_kill_process()
983 		if (unlikely(p->flags & PF_KTHREAD))  in __oom_kill_process()
985 		do_send_sig_info(SIGKILL, SEND_SIG_PRIV, p, PIDTYPE_TGID);  in __oom_kill_process()
1200 	struct task_struct *p;  in SYSCALL_DEFINE2()  local
1216 	p = find_lock_task_mm(task);  in SYSCALL_DEFINE2()
1217 	if (!p) {  in SYSCALL_DEFINE2()
1222 	mm = p->mm;  in SYSCALL_DEFINE2()
1225 	if (task_will_free_mem(p))  in SYSCALL_DEFINE2()
1232 	task_unlock(p);  in SYSCALL_DEFINE2()