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-rw-r--r--include/linux/ipc_namespace.h25
1 files changed, 2 insertions, 23 deletions
diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h
index cfb2a08b28f..c3b1da9e5fe 100644
--- a/include/linux/ipc_namespace.h
+++ b/include/linux/ipc_namespace.h
@@ -4,14 +4,14 @@
#include <linux/err.h>
#include <linux/idr.h>
#include <linux/rwsem.h>
-#ifdef CONFIG_MEMORY_HOTPLUG
#include <linux/notifier.h>
-#endif /* CONFIG_MEMORY_HOTPLUG */
/*
* ipc namespace events
*/
#define IPCNS_MEMCHANGED 0x00000001 /* Notify lowmem size changed */
+#define IPCNS_CREATED 0x00000002 /* Notify new ipc namespace created */
+#define IPCNS_REMOVED 0x00000003 /* Notify ipc namespace removed */
#define IPCNS_CALLBACK_PRI 0
@@ -42,9 +42,7 @@ struct ipc_namespace {
int shm_ctlmni;
int shm_tot;
-#ifdef CONFIG_MEMORY_HOTPLUG
struct notifier_block ipcns_nb;
-#endif
};
extern struct ipc_namespace init_ipc_ns;
@@ -53,29 +51,10 @@ extern atomic_t nr_ipc_ns;
#ifdef CONFIG_SYSVIPC
#define INIT_IPC_NS(ns) .ns = &init_ipc_ns,
-#ifdef CONFIG_MEMORY_HOTPLUG
-
extern int register_ipcns_notifier(struct ipc_namespace *);
extern int unregister_ipcns_notifier(struct ipc_namespace *);
extern int ipcns_notify(unsigned long);
-#else /* CONFIG_MEMORY_HOTPLUG */
-
-static inline int register_ipcns_notifier(struct ipc_namespace *ipcns)
-{
- return 0;
-}
-static inline int unregister_ipcns_notifier(struct ipc_namespace *ipcns)
-{
- return 0;
-}
-static inline int ipcns_notify(unsigned long ev)
-{
- return 0;
-}
-
-#endif /* CONFIG_MEMORY_HOTPLUG */
-
#else /* CONFIG_SYSVIPC */
#define INIT_IPC_NS(ns)
#endif /* CONFIG_SYSVIPC */