[PATCH] cpu hotplug: make cpu_notifier related notifier blocks __cpuinit only

Make notifier_blocks associated with cpu_notifier as __cpuinitdata.

__cpuinitdata makes sure that the data is init time only unless
CONFIG_HOTPLUG_CPU is defined.

Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Cc: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

12 files changed, 20 insertions, 17 deletions

diff --git a/arch/i386/kernel/cpu/intel_cacheinfo.c b/arch/i386/kernel/cpu/intel_cacheinfo.c
index 1d4ab1047982..e9f0b928b0a9 100644
--- a/arch/i386/kernel/cpu/intel_cacheinfo.c
+++ b/arch/i386/kernel/cpu/intel_cacheinfo.c
@@ -747,7 +747,7 @@ static int __cpuinit cacheinfo_cpu_callback(struct notifier_block *nfb,
         return NOTIFY_OK;
 }
 
-static struct notifier_block cacheinfo_cpu_notifier =
+static struct notifier_block __cpuinitdata cacheinfo_cpu_notifier =
 {
     .notifier_call = cacheinfo_cpu_callback,
 };
diff --git a/arch/i386/kernel/cpuid.c b/arch/i386/kernel/cpuid.c
index 1d9a4abcdfc7..f6dfa9fb675c 100644
--- a/arch/i386/kernel/cpuid.c
+++ b/arch/i386/kernel/cpuid.c
@@ -183,7 +183,7 @@ static int cpuid_class_cpu_callback(struct notifier_block *nfb, unsigned long ac
         return NOTIFY_OK;
 }
 
-static struct notifier_block cpuid_class_cpu_notifier =
+static struct notifier_block __cpuinitdata cpuid_class_cpu_notifier =
 {
         .notifier_call = cpuid_class_cpu_callback,
 };
diff --git a/arch/i386/kernel/msr.c b/arch/i386/kernel/msr.c
index 7a328230e540..d022cb8fd725 100644
--- a/arch/i386/kernel/msr.c
+++ b/arch/i386/kernel/msr.c
@@ -266,7 +266,7 @@ static int msr_class_cpu_callback(struct notifier_block *nfb, unsigned long acti
         return NOTIFY_OK;
 }
 
-static struct notifier_block msr_class_cpu_notifier =
+static struct notifier_block __cpuinitdata msr_class_cpu_notifier =
 {
         .notifier_call = msr_class_cpu_callback,
 };
diff --git a/arch/ia64/kernel/palinfo.c b/arch/ia64/kernel/palinfo.c
index 6386f63c413e..303a9afcf2a1 100644
--- a/arch/ia64/kernel/palinfo.c
+++ b/arch/ia64/kernel/palinfo.c
@@ -959,7 +959,7 @@ remove_palinfo_proc_entries(unsigned int hcpu)
         }
 }
 
-static int __devinit palinfo_cpu_callback(struct notifier_block *nfb,
+static int __cpuinit palinfo_cpu_callback(struct notifier_block *nfb,
                                                                 unsigned long action,
                                                                 void *hcpu)
 {
@@ -978,7 +978,7 @@ static int __devinit palinfo_cpu_callback(struct notifier_block *nfb,
         return NOTIFY_OK;
 }
 
-static struct notifier_block palinfo_cpu_notifier =
+static struct notifier_block __cpuinitdata palinfo_cpu_notifier =
 {
         .notifier_call = palinfo_cpu_callback,
         .priority = 0,
diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c
index f07c382b57b8..5511d9c6c701 100644
--- a/arch/ia64/kernel/topology.c
+++ b/arch/ia64/kernel/topology.c
@@ -422,7 +422,7 @@ static int __cpuinit cache_cpu_callback(struct notifier_block *nfb,
         return NOTIFY_OK;
 }
 
-static struct notifier_block cache_cpu_notifier =
+static struct notifier_block __cpuinitdata cache_cpu_notifier =
 {
         .notifier_call = cache_cpu_callback
 };
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index aa98cb3b59d8..fbe23933f731 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -334,7 +334,7 @@ out:
         return nid;
 }
 
-static int cpu_numa_callback(struct notifier_block *nfb,
+static int __cpuinit cpu_numa_callback(struct notifier_block *nfb,
                              unsigned long action,
                              void *hcpu)
 {
@@ -609,14 +609,15 @@ static void __init *careful_allocation(int nid, unsigned long size,
         return (void *)ret;
 }
 
+static struct notifier_block __cpuinitdata ppc64_numa_nb = {
+        .notifier_call = cpu_numa_callback,
+        .priority = 1 /* Must run before sched domains notifier. */
+};
+
 void __init do_init_bootmem(void)
 {
         int nid;
         unsigned int i;
-        static struct notifier_block ppc64_numa_nb = {
-                .notifier_call = cpu_numa_callback,
-                .priority = 1 /* Must run before sched domains notifier. */
-        };
 
         min_low_pfn = 0;
         max_low_pfn = lmb_end_of_DRAM() >> PAGE_SHIFT;
diff --git a/arch/x86_64/kernel/mce.c b/arch/x86_64/kernel/mce.c
index efe8500a5b9d..88845674c661 100644
--- a/arch/x86_64/kernel/mce.c
+++ b/arch/x86_64/kernel/mce.c
@@ -647,7 +647,7 @@ mce_cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu)
         return NOTIFY_OK;
 }
 
-static struct notifier_block mce_cpu_notifier = {
+static struct notifier_block __cpuinitdata mce_cpu_notifier = {
         .notifier_call = mce_cpu_callback,
 };
 
diff --git a/drivers/base/topology.c b/drivers/base/topology.c
index 915810f6237e..c2d621632383 100644
--- a/drivers/base/topology.c
+++ b/drivers/base/topology.c
@@ -125,7 +125,7 @@ static int __cpuinit topology_cpu_callback(struct notifier_block *nfb,
         return NOTIFY_OK;
 }
 
-static struct notifier_block topology_cpu_notifier =
+static struct notifier_block __cpuinitdata topology_cpu_notifier =
 {
         .notifier_call = topology_cpu_callback,
 };
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 3533e26f837d..35e0b9ceecf7 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1533,7 +1533,7 @@ static int cpufreq_cpu_callback(struct notifier_block *nfb,
         return NOTIFY_OK;
 }
 
-static struct notifier_block cpufreq_cpu_notifier =
+static struct notifier_block __cpuinitdata cpufreq_cpu_notifier =
 {
     .notifier_call = cpufreq_cpu_callback,
 };
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 8ccf6f1b1473..8ac6bfb40073 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -523,7 +523,7 @@ ratelimit_handler(struct notifier_block *self, unsigned long u, void *v)
         return 0;
 }
 
-static struct notifier_block ratelimit_nb = {
+static struct notifier_block __cpuinitdata ratelimit_nb = {
         .notifier_call  = ratelimit_handler,
         .next           = NULL,
 };
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index e9fb2d4064c8..dafd12ec7a0c 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2031,7 +2031,7 @@ static int __cpuinit pageset_cpuup_callback(struct notifier_block *nfb,
         return ret;
 }
 
-static struct notifier_block pageset_notifier =
+static struct notifier_block __cpuinitdata pageset_notifier =
         { &pageset_cpuup_callback, NULL, 0 };
 
 void __init setup_per_cpu_pageset(void)
diff --git a/mm/slab.c b/mm/slab.c
index 631c0feb9645..d1d55279202e 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1255,7 +1255,9 @@ bad:
         return NOTIFY_BAD;
 }
 
-static struct notifier_block cpucache_notifier = { &cpuup_callback, NULL, 0 };
+static struct notifier_block __cpuinitdata cpucache_notifier = {
+        &cpuup_callback, NULL, 0
+};
 
 /*
  * swap the static kmem_list3 with kmalloced memory