840                              struct fown_struct *fown, int sig)  in sigio_perm()  argument
847 	ret = ((uid_eq(fown->euid, GLOBAL_ROOT_UID) ||  in sigio_perm()
848 		uid_eq(fown->euid, cred->suid) || uid_eq(fown->euid, cred->uid) ||  in sigio_perm()
849 		uid_eq(fown->uid,  cred->suid) || uid_eq(fown->uid,  cred->uid)) &&  in sigio_perm()
850 	       !security_file_send_sigiotask(p, fown, sig));  in sigio_perm()
856 			       struct fown_struct *fown,  in send_sigio_to_task()  argument
863 	int signum = READ_ONCE(fown->signum);  in send_sigio_to_task()
865 	if (!sigio_perm(p, fown, signum))  in send_sigio_to_task()
911 void send_sigio(struct fown_struct *fown, int fd, int band)  in send_sigio()  argument
918 	read_lock_irqsave(&fown->lock, flags);  in send_sigio()
920 	type = fown->pid_type;  in send_sigio()
921 	pid = fown->pid;  in send_sigio()
929 			send_sigio_to_task(p, fown, fd, band, type);  in send_sigio()
934 			send_sigio_to_task(p, fown, fd, band, type);  in send_sigio()
939 	read_unlock_irqrestore(&fown->lock, flags);  in send_sigio()
943 				struct fown_struct *fown, enum pid_type type)  in send_sigurg_to_task()  argument
945 	if (sigio_perm(p, fown, SIGURG))  in send_sigurg_to_task()
951 	struct fown_struct *fown;  in send_sigurg()  local
958 	fown = file_f_owner(file);  in send_sigurg()
959 	if (!fown)  in send_sigurg()
962 	read_lock_irqsave(&fown->lock, flags);  in send_sigurg()
964 	type = fown->pid_type;  in send_sigurg()
965 	pid = fown->pid;  in send_sigurg()
975 			send_sigurg_to_task(p, fown, type);  in send_sigurg()
980 			send_sigurg_to_task(p, fown, type);  in send_sigurg()
985 	read_unlock_irqrestore(&fown->lock, flags);  in send_sigurg()
1127 		struct fown_struct *fown;  in kill_fasync_rcu()  local
1137 			fown = file_f_owner(fa->fa_file);  in kill_fasync_rcu()
1138 			if (!fown)  in kill_fasync_rcu()
1143 			if (!(sig == SIGURG && fown->signum == 0))  in kill_fasync_rcu()
1144 				send_sigio(fown, fa->fa_fd, band);  in kill_fasync_rcu()