707 	struct user_event_mm *user_mm;  in user_event_mm_alloc()  local
709 	user_mm = kzalloc(sizeof(*user_mm), GFP_KERNEL_ACCOUNT);  in user_event_mm_alloc()
711 	if (!user_mm)  in user_event_mm_alloc()
714 	user_mm->mm = t->mm;  in user_event_mm_alloc()
715 	INIT_LIST_HEAD(&user_mm->enablers);  in user_event_mm_alloc()
716 	refcount_set(&user_mm->refcnt, 1);  in user_event_mm_alloc()
717 	refcount_set(&user_mm->tasks, 1);  in user_event_mm_alloc()
727 	mmgrab(user_mm->mm);  in user_event_mm_alloc()
729 	return user_mm;  in user_event_mm_alloc()
732 static void user_event_mm_attach(struct user_event_mm *user_mm, struct task_struct *t)  in user_event_mm_attach()  argument
737 	list_add_rcu(&user_mm->mms_link, &user_event_mms);  in user_event_mm_attach()
740 	t->user_event_mm = user_mm;  in user_event_mm_attach()
745 	struct user_event_mm *user_mm = current->user_event_mm;  in current_user_event_mm()  local
747 	if (user_mm)  in current_user_event_mm()
750 	user_mm = user_event_mm_alloc(current);  in current_user_event_mm()
752 	if (!user_mm)  in current_user_event_mm()
755 	user_event_mm_attach(user_mm, current);  in current_user_event_mm()
757 	refcount_inc(&user_mm->refcnt);  in current_user_event_mm()
759 	return user_mm;  in current_user_event_mm()
868 	struct user_event_mm *user_mm = current_user_event_mm();  in current_user_event_enabler_exists()  local
871 	if (!user_mm)  in current_user_event_enabler_exists()
874 	exists = user_event_enabler_exists(user_mm, uaddr, bit);  in current_user_event_enabler_exists()
876 	user_event_mm_put(user_mm);  in current_user_event_enabler_exists()
886 	struct user_event_mm *user_mm;  in user_event_enabler_create()  local
890 	user_mm = current_user_event_mm();  in user_event_enabler_create()
892 	if (!user_mm)  in user_event_enabler_create()
914 	mmap_read_lock(user_mm->mm);  in user_event_enabler_create()
915 	*write_result = user_event_enabler_write(user_mm, enabler, false,  in user_event_enabler_create()
917 	mmap_read_unlock(user_mm->mm);  in user_event_enabler_create()
929 		list_add_rcu(&enabler->mm_enablers_link, &user_mm->enablers);  in user_event_enabler_create()
936 		if (!user_event_mm_fault_in(user_mm, uaddr, attempt))  in user_event_enabler_create()
943 	user_event_mm_put(user_mm);  in user_event_enabler_create()
2586 static int user_event_mm_clear_bit(struct user_event_mm *user_mm,  in user_event_mm_clear_bit()  argument
2602 	mmap_read_lock(user_mm->mm);  in user_event_mm_clear_bit()
2603 	result = user_event_enabler_write(user_mm, &enabler, false, &attempt);  in user_event_mm_clear_bit()
2604 	mmap_read_unlock(user_mm->mm);  in user_event_mm_clear_bit()
2610 		if (!user_event_mm_fault_in(user_mm, uaddr, attempt))  in user_event_mm_clear_bit()