fs/proc/kcore.c: use register_hotmemory_notifier()

Saves an ifdef, no code size changes

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 6 insertions, 3 deletions

diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
index eda6f017f272..f6a13f489e30 100644
--- a/fs/proc/kcore.c
+++ b/fs/proc/kcore.c
@@ -15,6 +15,7 @@
 #include <linux/capability.h>
 #include <linux/elf.h>
 #include <linux/elfcore.h>
+#include <linux/notifier.h>
 #include <linux/vmalloc.h>
 #include <linux/highmem.h>
 #include <linux/printk.h>
@@ -564,7 +565,6 @@ static const struct file_operations proc_kcore_operations = {
         .llseek         = default_llseek,
 };
 
-#ifdef CONFIG_MEMORY_HOTPLUG
 /* just remember that we have to update kcore */
 static int __meminit kcore_callback(struct notifier_block *self,
                                     unsigned long action, void *arg)
@@ -578,8 +578,11 @@ static int __meminit kcore_callback(struct notifier_block *self,
         }
         return NOTIFY_OK;
 }
-#endif
 
+static struct notifier_block kcore_callback_nb __meminitdata = {
+        .notifier_call = kcore_callback,
+        .priority = 0,
+};
 
 static struct kcore_list kcore_vmalloc;
 
@@ -631,7 +634,7 @@ static int __init proc_kcore_init(void)
         add_modules_range();
         /* Store direct-map area from physical memory map */
         kcore_update_ram();
-        hotplug_memory_notifier(kcore_callback, 0);
+        register_hotmemory_notifier(&kcore_callback_nb);
 
         return 0;
 }