ipcctl_pre_down 424 ipc/msg.c ipcp = ipcctl_pre_down(&msg_ids(ns), msqid, cmd, ipcctl_pre_down 861 ipc/sem.c ipcp = ipcctl_pre_down(&sem_ids(ns), semid, cmd, &semid64.sem_perm, 0); ipcctl_pre_down 597 ipc/shm.c ipcp = ipcctl_pre_down(&shm_ids(ns), shmid, cmd, &shmid64.shm_perm, 0); ipcctl_pre_down 110 ipc/util.h struct kern_ipc_perm *ipcctl_pre_down(struct ipc_ids *ids, int id, int cmd,