shmid64           892 ipc/shm.c      		       struct shmid64_ds *shmid64)
shmid64           902 ipc/shm.c      				      &shmid64->shm_perm, 0);
shmid64           922 ipc/shm.c      		err = ipc_update_perm(&shmid64->shm_perm, ipcp);