689 	struct user_event_mm *user_mm;  in user_event_mm_alloc()  local
691 	user_mm = kzalloc(sizeof(*user_mm), GFP_KERNEL_ACCOUNT);  in user_event_mm_alloc()
693 	if (!user_mm)  in user_event_mm_alloc()
696 	user_mm->mm = t->mm;  in user_event_mm_alloc()
697 	INIT_LIST_HEAD(&user_mm->enablers);  in user_event_mm_alloc()
698 	refcount_set(&user_mm->refcnt, 1);  in user_event_mm_alloc()
699 	refcount_set(&user_mm->tasks, 1);  in user_event_mm_alloc()
709 	mmgrab(user_mm->mm);  in user_event_mm_alloc()
711 	return user_mm;  in user_event_mm_alloc()
714 static void user_event_mm_attach(struct user_event_mm *user_mm, struct task_struct *t)  in user_event_mm_attach()  argument
719 	list_add_rcu(&user_mm->mms_link, &user_event_mms);  in user_event_mm_attach()
722 	t->user_event_mm = user_mm;  in user_event_mm_attach()
727 	struct user_event_mm *user_mm = current->user_event_mm;  in current_user_event_mm()  local
729 	if (user_mm)  in current_user_event_mm()
732 	user_mm = user_event_mm_alloc(current);  in current_user_event_mm()
734 	if (!user_mm)  in current_user_event_mm()
737 	user_event_mm_attach(user_mm, current);  in current_user_event_mm()
739 	refcount_inc(&user_mm->refcnt);  in current_user_event_mm()
741 	return user_mm;  in current_user_event_mm()
850 	struct user_event_mm *user_mm = current_user_event_mm();  in current_user_event_enabler_exists()  local
853 	if (!user_mm)  in current_user_event_enabler_exists()
856 	exists = user_event_enabler_exists(user_mm, uaddr, bit);  in current_user_event_enabler_exists()
858 	user_event_mm_put(user_mm);  in current_user_event_enabler_exists()
868 	struct user_event_mm *user_mm;  in user_event_enabler_create()  local
872 	user_mm = current_user_event_mm();  in user_event_enabler_create()
874 	if (!user_mm)  in user_event_enabler_create()
896 	mmap_read_lock(user_mm->mm);  in user_event_enabler_create()
897 	*write_result = user_event_enabler_write(user_mm, enabler, false,  in user_event_enabler_create()
899 	mmap_read_unlock(user_mm->mm);  in user_event_enabler_create()
911 		list_add_rcu(&enabler->mm_enablers_link, &user_mm->enablers);  in user_event_enabler_create()
918 		if (!user_event_mm_fault_in(user_mm, uaddr, attempt))  in user_event_enabler_create()
925 	user_event_mm_put(user_mm);  in user_event_enabler_create()
2510 static int user_event_mm_clear_bit(struct user_event_mm *user_mm,  in user_event_mm_clear_bit()  argument
2526 	mmap_read_lock(user_mm->mm);  in user_event_mm_clear_bit()
2527 	result = user_event_enabler_write(user_mm, &enabler, false, &attempt);  in user_event_mm_clear_bit()
2528 	mmap_read_unlock(user_mm->mm);  in user_event_mm_clear_bit()
2534 		if (!user_event_mm_fault_in(user_mm, uaddr, attempt))  in user_event_mm_clear_bit()