diff options
Diffstat (limited to 'include/linux/ipc.h')
| -rw-r--r-- | include/linux/ipc.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/ipc.h b/include/linux/ipc.h index 36027b10f28..d9e2b3f36c3 100644 --- a/include/linux/ipc.h +++ b/include/linux/ipc.h @@ -88,20 +88,38 @@ struct ipc_namespace { }; extern struct ipc_namespace init_ipc_ns; + +#ifdef CONFIG_SYSVIPC +#define INIT_IPC_NS(ns) .ns = &init_ipc_ns, +#else +#define INIT_IPC_NS(ns) +#endif + +#ifdef CONFIG_IPC_NS extern void free_ipc_ns(struct kref *kref); extern int copy_ipcs(unsigned long flags, struct task_struct *tsk); extern int unshare_ipcs(unsigned long flags, struct ipc_namespace **ns); +#else +static inline int copy_ipcs(unsigned long flags, struct task_struct *tsk) +{ + return 0; +} +#endif static inline struct ipc_namespace *get_ipc_ns(struct ipc_namespace *ns) { +#ifdef CONFIG_IPC_NS if (ns) kref_get(&ns->kref); +#endif return ns; } static inline void put_ipc_ns(struct ipc_namespace *ns) { +#ifdef CONFIG_IPC_NS kref_put(&ns->kref, free_ipc_ns); +#endif } #endif /* __KERNEL__ */ |