memory hotplug: fix page_zone() calculation in test_pages_isolated()

[linux-2.6-omap-h63xx.git] / include / linux / ipc_namespace.h

diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h
index e4451d1da7534205dad7e7adfba595ab9d929064..ea330f9e710015c2c8a4b80ebfaec9cd133ffcdd 100644 (file)
--- a/include/linux/ipc_namespace.h
+++ b/include/linux/ipc_namespace.h
@@ -4,6 +4,17 @@
 #include <linux/err.h>
 #include <linux/idr.h>
 #include <linux/rwsem.h>
+#include <linux/notifier.h>
+
+/*
+ * 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
+
 
 struct ipc_ids {
        int in_use;
@@ -25,20 +36,30 @@ struct ipc_namespace {
        int             msg_ctlmni;
        atomic_t        msg_bytes;
        atomic_t        msg_hdrs;
+       int             auto_msgmni;
 
        size_t          shm_ctlmax;
        size_t          shm_ctlall;
        int             shm_ctlmni;
        int             shm_tot;
+
+       struct notifier_block ipcns_nb;
 };
 
 extern struct ipc_namespace init_ipc_ns;
+extern atomic_t nr_ipc_ns;
 
 #ifdef CONFIG_SYSVIPC
 #define INIT_IPC_NS(ns)                .ns             = &init_ipc_ns,
-#else
+
+extern int register_ipcns_notifier(struct ipc_namespace *);
+extern int cond_register_ipcns_notifier(struct ipc_namespace *);
+extern void unregister_ipcns_notifier(struct ipc_namespace *);
+extern int ipcns_notify(unsigned long);
+
+#else /* CONFIG_SYSVIPC */
 #define INIT_IPC_NS(ns)
-#endif
+#endif /* CONFIG_SYSVIPC */
 
 #if defined(CONFIG_SYSVIPC) && defined(CONFIG_IPC_NS)
 extern void free_ipc_ns(struct kref *kref);