diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/init_task.h | 3 | ||||
| -rw-r--r-- | include/linux/ipc.h | 18 |
2 files changed, 20 insertions, 1 deletions
diff --git a/include/linux/init_task.h b/include/linux/init_task.h index ceecf69dfa39..33c5daacc743 100644 --- a/include/linux/init_task.h +++ b/include/linux/init_task.h @@ -6,6 +6,7 @@ #include <linux/irqflags.h> #include <linux/utsname.h> #include <linux/lockdep.h> +#include <linux/ipc.h> #define INIT_FDTABLE \ { \ @@ -74,8 +75,8 @@ extern struct nsproxy init_nsproxy; .count = ATOMIC_INIT(1), \ .nslock = SPIN_LOCK_UNLOCKED, \ .uts_ns = &init_uts_ns, \ - .ipc_ns = &init_ipc_ns, \ .namespace = NULL, \ + INIT_IPC_NS(ipc_ns) \ } #define INIT_SIGHAND(sighand) { \ diff --git a/include/linux/ipc.h b/include/linux/ipc.h index 36027b10f283..d9e2b3f36c35 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__ */ |