msg_init_ns(ns);
shm_init_ns(ns);
- /*
- * msgmni has already been computed for the new ipc ns.
- * Thus, do the ipcns creation notification before registering that
- * new ipcns in the chain.
- */
- ipcns_notify(IPCNS_CREATED);
- register_ipcns_notifier(ns);
-
ns->user_ns = get_user_ns(user_ns);
return ns;
static void free_ipc_ns(struct ipc_namespace *ns)
{
- /*
- * Unregistering the hotplug notifier at the beginning guarantees
- * that the ipc namespace won't be freed while we are inside the
- * callback routine. Since the blocking_notifier_chain_XXX routines
- * hold a rw lock on the notifier list, unregister_ipcns_notifier()
- * won't take the rw lock before blocking_notifier_call_chain() has
- * released the rd lock.
- */
- unregister_ipcns_notifier(ns);
sem_exit_ns(ns);
msg_exit_ns(ns);
shm_exit_ns(ns);
atomic_dec(&nr_ipc_ns);
- /*
- * Do the ipcns removal notification after decrementing nr_ipc_ns in
- * order to have a correct value when recomputing msgmni.
- */
- ipcns_notify(IPCNS_REMOVED);
put_user_ns(ns->user_ns);
proc_free_inum(ns->proc_inum);
kfree(ns);