Lines Matching refs:ns

168 #define sem_ids(ns) ((ns)->ids[IPC_SEM_IDS])

246 void sem_init_ns(struct ipc_namespace *ns)

248     ns->sc_semmsl = SEMMSL;

249     ns->sc_semmns = SEMMNS;

250     ns->sc_semopm = SEMOPM;

251     ns->sc_semmni = SEMMNI;

252     ns->used_sems = 0;

253     ipc_init_ids(&ns->ids[IPC_SEM_IDS]);

257 void sem_exit_ns(struct ipc_namespace *ns)

259     free_ipcs(ns, &sem_ids(ns), freeary);

260     idr_destroy(&ns->ids[IPC_SEM_IDS].ipcs_idr);

261     rhashtable_destroy(&ns->ids[IPC_SEM_IDS].key_ht);

474 static inline struct sem_array *sem_obtain_object(struct ipc_namespace *ns, int id)

476     struct kern_ipc_perm *ipcp = ipc_obtain_object_idr(&sem_ids(ns), id);

485 static inline struct sem_array *sem_obtain_object_check(struct ipc_namespace *ns, int id)

487     struct kern_ipc_perm *ipcp = ipc_obtain_object_check(&sem_ids(ns), id);

502 static inline void sem_rmid(struct ipc_namespace *ns, struct sem_array *s)

504     ipc_rmid(&sem_ids(ns), &s->sem_perm);

525  * @ns: namespace

530 static int newary(struct ipc_namespace *ns, struct ipc_params *params)

542     if (ns->used_sems + nsems > ns->sc_semmns) {

576     retval = ipc_addid(&sem_ids(ns), &sma->sem_perm, ns->sc_semmni);

581     ns->used_sems += nsems;

606     struct ipc_namespace *ns;

614     ns = current->nsproxy->ipc_ns;

616     if (nsems < 0 || nsems > ns->sc_semmsl) {

624     return ipcget(ns, &sem_ids(ns), &sem_ops, &sem_params);

1169 static void freeary(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp)

1217     sem_rmid(ns, sma);

1222     ns->used_sems -= sma->sem_nsems;

1265 static int semctl_stat(struct ipc_namespace *ns, int semid, int cmd, struct semid64_ds *semid64)

1275         sma = sem_obtain_object(ns, semid);

1281         sma = sem_obtain_object_check(ns, semid);

1293         if (ipcperms(ns, &sma->sem_perm, S_IRUGO)) {

1340 static int semctl_info(struct ipc_namespace *ns, int semid, int cmd, void __user *p)

1352     seminfo.semmni = ns->sc_semmni;

1353     seminfo.semmns = ns->sc_semmns;

1354     seminfo.semmsl = ns->sc_semmsl;

1355     seminfo.semopm = ns->sc_semopm;

1360     down_read(&sem_ids(ns).rwsem);

1362         seminfo.semusz = sem_ids(ns).in_use;

1363         seminfo.semaem = ns->used_sems;

1368     max_idx = ipc_get_maxidx(&sem_ids(ns));

1369     up_read(&sem_ids(ns).rwsem);

1376 static int semctl_setval(struct ipc_namespace *ns, int semid, int semnum, int val)

1389     sma = sem_obtain_object_check(ns, semid);

1400     if (ipcperms(ns, &sma->sem_perm, S_IWUGO)) {

1436 static int semctl_main(struct ipc_namespace *ns, int semid, int semnum, int cmd, void __user *p)

1446     sma = sem_obtain_object_check(ns, semid);

1455     if (ipcperms(ns, &sma->sem_perm, cmd == SETALL ? S_IWUGO : S_IRUGO)) {

1636 static int semctl_down(struct ipc_namespace *ns, int semid, int cmd, struct semid64_ds *semid64)

1642     down_write(&sem_ids(ns).rwsem);

1645     ipcp = ipcctl_obtain_check(ns, &sem_ids(ns), semid, cmd, &semid64->sem_perm, 0);

1662             freeary(ns, ipcp);

1682     up_write(&sem_ids(ns).rwsem);

1688     struct ipc_namespace *ns;

1697     ns = current->nsproxy->ipc_ns;

1702             return semctl_info(ns, semid, cmd, p);

1706             err = semctl_stat(ns, semid, cmd, &semid64);

1720             return semctl_main(ns, semid, semnum, cmd, p);

1730             return semctl_setval(ns, semid, semnum, val);

1738             return semctl_down(ns, semid, cmd, &semid64);

1814     struct ipc_namespace *ns;

1818     ns = current->nsproxy->ipc_ns;

1827             return semctl_info(ns, semid, cmd, p);

1831             err = semctl_stat(ns, semid, cmd, &semid64);

1845             return semctl_main(ns, semid, semnum, cmd, p);

1847             return semctl_setval(ns, semid, semnum, arg);

1854             return semctl_down(ns, semid, cmd, &semid64);

1940  * @ns: namespace

1949 static struct sem_undo *find_alloc_undo(struct ipc_namespace *ns, int semid)

1971     sma = sem_obtain_object_check(ns, semid);

2040     struct ipc_namespace *ns;

2042     ns = current->nsproxy->ipc_ns;

2047     if (nsops > ns->sc_semopm) {

2097         un = find_alloc_undo(ns, semid);

2107     sma = sem_obtain_object_check(ns, semid);

2121     if (ipcperms(ns, &sma->sem_perm, alter ? S_IWUGO : S_IRUGO)) {