15 files changed, 68 insertions, 48 deletions

diff --git a/arch/powerpc/kernel/crash.c b/arch/powerpc/kernel/crash.c
index dbcb85994f46..e253a45dcf10 100644
--- a/arch/powerpc/kernel/crash.c
+++ b/arch/powerpc/kernel/crash.c
@@ -179,7 +179,7 @@ void default_machine_crash_shutdown(struct pt_regs *regs)
 
         /*
          * This function is only called after the system
-         * has paniced or is otherwise in a critical state.
+         * has panicked or is otherwise in a critical state.
          * The minimum amount of code to allow a kexec'd kernel
          * to run successfully needs to happen here.
          *
diff --git a/arch/powerpc/kernel/machine_kexec_32.c b/arch/powerpc/kernel/machine_kexec_32.c
index 443606134dff..cbaa34196797 100644
--- a/arch/powerpc/kernel/machine_kexec_32.c
+++ b/arch/powerpc/kernel/machine_kexec_32.c
@@ -30,8 +30,8 @@ typedef NORET_TYPE void (*relocate_new_kernel_t)(
  */
 void default_machine_kexec(struct kimage *image)
 {
-        const extern unsigned char relocate_new_kernel[];
-        const extern unsigned int relocate_new_kernel_size;
+        extern const unsigned char relocate_new_kernel[];
+        extern const unsigned int relocate_new_kernel_size;
         unsigned long page_list;
         unsigned long reboot_code_buffer, reboot_code_buffer_phys;
         relocate_new_kernel_t rnk;
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index e5a44812441a..0932a62a1c96 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -215,7 +215,7 @@ int __init ppc_init(void)
 
         /* register CPU devices */
         for_each_possible_cpu(i)
-                register_cpu(&cpu_devices[i], i, NULL);
+                register_cpu(&cpu_devices[i], i);
 
         /* call platform init */
         if (ppc_md.init != NULL) {
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index 5bc2585c8036..4662b580efa1 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -279,7 +279,7 @@ static void unregister_cpu_online(unsigned int cpu)
 }
 #endif /* CONFIG_HOTPLUG_CPU */
 
-static int sysfs_cpu_notify(struct notifier_block *self,
+static int __devinit sysfs_cpu_notify(struct notifier_block *self,
                                       unsigned long action, void *hcpu)
 {
         unsigned int cpu = (unsigned int)(long)hcpu;
@@ -297,30 +297,19 @@ static int sysfs_cpu_notify(struct notifier_block *self,
         return NOTIFY_OK;
 }
 
-static struct notifier_block sysfs_cpu_nb = {
+static struct notifier_block __devinitdata sysfs_cpu_nb = {
         .notifier_call  = sysfs_cpu_notify,
 };
 
 /* NUMA stuff */
 
 #ifdef CONFIG_NUMA
-static struct node node_devices[MAX_NUMNODES];
-
 static void register_nodes(void)
 {
         int i;
 
-        for (i = 0; i < MAX_NUMNODES; i++) {
-                if (node_online(i)) {
-                        int p_node = parent_node(i);
-                        struct node *parent = NULL;
-
-                        if (p_node != i)
-                                parent = &node_devices[p_node];
-
-                        register_node(&node_devices[i], i, parent);
-                }
-        }
+        for (i = 0; i < MAX_NUMNODES; i++)
+                register_one_node(i);
 }
 
 int sysfs_add_device_to_node(struct sys_device *dev, int nid)
@@ -359,23 +348,13 @@ static SYSDEV_ATTR(physical_id, 0444, show_physical_id, NULL);
 static int __init topology_init(void)
 {
         int cpu;
-        struct node *parent = NULL;
 
         register_nodes();
-
         register_cpu_notifier(&sysfs_cpu_nb);
 
         for_each_possible_cpu(cpu) {
                 struct cpu *c = &per_cpu(cpu_devices, cpu);
 
-#ifdef CONFIG_NUMA
-                /* The node to which a cpu belongs can't be known
-                 * until the cpu is made present.
-                 */
-                parent = NULL;
-                if (cpu_present(cpu))
-                        parent = &node_devices[cpu_to_node(cpu)];
-#endif
                 /*
                  * For now, we just see if the system supports making
                  * the RTAS calls for CPU hotplug.  But, there may be a
@@ -387,7 +366,7 @@ static int __init topology_init(void)
                         c->no_control = 1;
 
                 if (cpu_online(cpu) || (c->no_control == 0)) {
-                        register_cpu(c, cpu, parent);
+                        register_cpu(c, cpu);
 
                         sysdev_create_file(&c->sysdev, &attr_physical_id);
                 }
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index d20907561f46..7dd5dab789a1 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -102,7 +102,7 @@ EXPORT_SYMBOL(tb_ticks_per_sec);	/* for cputime_t conversions */
 u64 tb_to_xs;
 unsigned tb_to_us;
 
-#define TICKLEN_SCALE   (SHIFT_SCALE - 10)
+#define TICKLEN_SCALE   TICK_LENGTH_SHIFT
 u64 last_tick_len;      /* units are ns / 2^TICKLEN_SCALE */
 u64 ticklen_to_xs;      /* 0.64 fraction */
 
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index fdbba4206d59..a0a9e1e0061e 100644
--- a/arch/powerpc/mm/fault.c
+++ b/arch/powerpc/mm/fault.c
@@ -40,6 +40,40 @@
 #include <asm/kdebug.h>
 #include <asm/siginfo.h>
 
+#ifdef CONFIG_KPROBES
+ATOMIC_NOTIFIER_HEAD(notify_page_fault_chain);
+
+/* Hook to register for page fault notifications */
+int register_page_fault_notifier(struct notifier_block *nb)
+{
+        return atomic_notifier_chain_register(&notify_page_fault_chain, nb);
+}
+
+int unregister_page_fault_notifier(struct notifier_block *nb)
+{
+        return atomic_notifier_chain_unregister(&notify_page_fault_chain, nb);
+}
+
+static inline int notify_page_fault(enum die_val val, const char *str,
+                        struct pt_regs *regs, long err, int trap, int sig)
+{
+        struct die_args args = {
+                .regs = regs,
+                .str = str,
+                .err = err,
+                .trapnr = trap,
+                .signr = sig
+        };
+        return atomic_notifier_call_chain(&notify_page_fault_chain, val, &args);
+}
+#else
+static inline int notify_page_fault(enum die_val val, const char *str,
+                        struct pt_regs *regs, long err, int trap, int sig)
+{
+        return NOTIFY_DONE;
+}
+#endif
+
 /*
  * Check whether the instruction at regs->nip is a store using
  * an update addressing form which will update r1.
@@ -142,7 +176,7 @@ int __kprobes do_page_fault(struct pt_regs *regs, unsigned long address,
         is_write = error_code & ESR_DST;
 #endif /* CONFIG_4xx || CONFIG_BOOKE */
 
-        if (notify_die(DIE_PAGE_FAULT, "page_fault", regs, error_code,
+        if (notify_page_fault(DIE_PAGE_FAULT, "page_fault", regs, error_code,
                                 11, SIGSEGV) == NOTIFY_STOP)
                 return 0;
 
diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c
index 9e30f968c184..d454caada265 100644
--- a/arch/powerpc/mm/init_64.c
+++ b/arch/powerpc/mm/init_64.c
@@ -41,6 +41,7 @@
 #include <linux/idr.h>
 #include <linux/nodemask.h>
 #include <linux/module.h>
+#include <linux/poison.h>
 
 #include <asm/pgalloc.h>
 #include <asm/page.h>
@@ -90,7 +91,7 @@ void free_initmem(void)
 
         addr = (unsigned long)__init_begin;
         for (; addr < (unsigned long)__init_end; addr += PAGE_SIZE) {
-                memset((void *)addr, 0xcc, PAGE_SIZE);
+                memset((void *)addr, POISON_FREE_INITMEM, PAGE_SIZE);
                 ClearPageReserved(virt_to_page(addr));
                 init_page_count(virt_to_page(addr));
                 free_page(addr);
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 69f3b9a20beb..089d939a0b3e 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -114,15 +114,20 @@ void online_page(struct page *page)
         num_physpages++;
 }
 
-int __devinit add_memory(u64 start, u64 size)
+#ifdef CONFIG_NUMA
+int memory_add_physaddr_to_nid(u64 start)
+{
+        return hot_add_scn_to_nid(start);
+}
+#endif
+
+int __devinit arch_add_memory(int nid, u64 start, u64 size)
 {
         struct pglist_data *pgdata;
         struct zone *zone;
-        int nid;
         unsigned long start_pfn = start >> PAGE_SHIFT;
         unsigned long nr_pages = size >> PAGE_SHIFT;
 
-        nid = hot_add_scn_to_nid(start);
         pgdata = NODE_DATA(nid);
 
         start = (unsigned long)__va(start);
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/powerpc/oprofile/common.c b/arch/powerpc/oprofile/common.c
index 27ad56bd227e..fd0bbbe7a4de 100644
--- a/arch/powerpc/oprofile/common.c
+++ b/arch/powerpc/oprofile/common.c
@@ -94,7 +94,7 @@ static int op_powerpc_create_files(struct super_block *sb, struct dentry *root)
 
         for (i = 0; i < model->num_counters; ++i) {
                 struct dentry *dir;
-                char buf[3];
+                char buf[4];
 
                 snprintf(buf, sizeof buf, "%d", i);
                 dir = oprofilefs_mkdir(sb, root, buf);
diff --git a/arch/powerpc/platforms/cell/spufs/switch.c b/arch/powerpc/platforms/cell/spufs/switch.c
index b30e55dab832..a656d810a44a 100644
--- a/arch/powerpc/platforms/cell/spufs/switch.c
+++ b/arch/powerpc/platforms/cell/spufs/switch.c
@@ -2100,7 +2100,7 @@ EXPORT_SYMBOL_GPL(spu_save);
  * @spu: pointer to SPU iomem structure.
  *
  * Perform harvest + restore, as we may not be coming
- * from a previous succesful save operation, and the
+ * from a previous successful save operation, and the
  * hardware state is unknown.
  */
 int spu_restore(struct spu_state *new, struct spu *spu)
@@ -2203,7 +2203,7 @@ void spu_init_csa(struct spu_state *csa)
 
         memset(lscsa, 0, sizeof(struct spu_lscsa));
         csa->lscsa = lscsa;
-        csa->register_lock = SPIN_LOCK_UNLOCKED;
+        spin_lock_init(&csa->register_lock);
 
         /* Set LS pages reserved to allow for user-space mapping. */
         for (p = lscsa->ls; p < lscsa->ls + LS_SIZE; p += PAGE_SIZE)
diff --git a/arch/powerpc/platforms/powermac/pfunc_core.c b/arch/powerpc/platforms/powermac/pfunc_core.c
index 047f954a89eb..93e7505debc5 100644
--- a/arch/powerpc/platforms/powermac/pfunc_core.c
+++ b/arch/powerpc/platforms/powermac/pfunc_core.c
@@ -546,7 +546,7 @@ struct pmf_device {
 };
 
 static LIST_HEAD(pmf_devices);
-static spinlock_t pmf_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_SPINLOCK(pmf_lock);
 static DEFINE_MUTEX(pmf_irq_mutex);
 
 static void pmf_release_device(struct kref *kref)
diff --git a/arch/powerpc/platforms/pseries/eeh_cache.c b/arch/powerpc/platforms/pseries/eeh_cache.c
index 98c23aec85be..c37a8497c60f 100644
--- a/arch/powerpc/platforms/pseries/eeh_cache.c
+++ b/arch/powerpc/platforms/pseries/eeh_cache.c
@@ -287,7 +287,7 @@ void pci_addr_cache_remove_device(struct pci_dev *dev)
  * find the pci device that corresponds to a given address.
  * This routine scans all pci busses to build the cache.
  * Must be run late in boot process, after the pci controllers
- * have been scaned for devices (after all device resources are known).
+ * have been scanned for devices (after all device resources are known).
  */
 void __init pci_addr_cache_build(void)
 {
diff --git a/arch/powerpc/platforms/pseries/eeh_event.c b/arch/powerpc/platforms/pseries/eeh_event.c
index 8f2d12935b99..45ccc687e57c 100644
--- a/arch/powerpc/platforms/pseries/eeh_event.c
+++ b/arch/powerpc/platforms/pseries/eeh_event.c
@@ -35,7 +35,7 @@
  */
 
 /* EEH event workqueue setup. */
-static spinlock_t eeh_eventlist_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_SPINLOCK(eeh_eventlist_lock);
 LIST_HEAD(eeh_eventlist);
 static void eeh_thread_launcher(void *);
 DECLARE_WORK(eeh_event_wq, eeh_thread_launcher, NULL);
diff --git a/arch/powerpc/sysdev/mmio_nvram.c b/arch/powerpc/sysdev/mmio_nvram.c
index 74e0d31a3559..615350d46b52 100644
--- a/arch/powerpc/sysdev/mmio_nvram.c
+++ b/arch/powerpc/sysdev/mmio_nvram.c
@@ -32,7 +32,7 @@
 
 static void __iomem *mmio_nvram_start;
 static long mmio_nvram_len;
-static spinlock_t mmio_nvram_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_SPINLOCK(mmio_nvram_lock);
 
 static ssize_t mmio_nvram_read(char *buf, size_t count, loff_t *index)
 {