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Diffstat (limited to 'ipc/util.c')
-rw-r--r--ipc/util.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/ipc/util.c b/ipc/util.c
index 464a8abd779..03eadd8fb0f 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -23,6 +23,7 @@
#include <linux/msg.h>
#include <linux/vmalloc.h>
#include <linux/slab.h>
+#include <linux/notifier.h>
#include <linux/capability.h>
#include <linux/highuid.h>
#include <linux/security.h>
@@ -47,19 +48,16 @@ struct ipc_proc_iface {
int (*show)(struct seq_file *, void *);
};
-#ifdef CONFIG_MEMORY_HOTPLUG
-
static void ipc_memory_notifier(struct work_struct *work)
{
ipcns_notify(IPCNS_MEMCHANGED);
}
-static DECLARE_WORK(ipc_memory_wq, ipc_memory_notifier);
-
-
static int ipc_memory_callback(struct notifier_block *self,
unsigned long action, void *arg)
{
+ static DECLARE_WORK(ipc_memory_wq, ipc_memory_notifier);
+
switch (action) {
case MEM_ONLINE: /* memory successfully brought online */
case MEM_OFFLINE: /* or offline: it's time to recompute msgmni */
@@ -85,7 +83,10 @@ static int ipc_memory_callback(struct notifier_block *self,
return NOTIFY_OK;
}
-#endif /* CONFIG_MEMORY_HOTPLUG */
+static struct notifier_block ipc_memory_nb = {
+ .notifier_call = ipc_memory_callback,
+ .priority = IPC_CALLBACK_PRI,
+};
/**
* ipc_init - initialise IPC subsystem
@@ -102,7 +103,7 @@ static int __init ipc_init(void)
sem_init();
msg_init();
shm_init();
- hotplug_memory_notifier(ipc_memory_callback, IPC_CALLBACK_PRI);
+ register_hotmemory_notifier(&ipc_memory_nb);
register_ipcns_notifier(&init_ipc_ns);
return 0;
}