Merge tag 'v3.15-rc1' into perf/urgent

Pick up the latest fixes.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

6 files changed, 36 insertions, 33 deletions

diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 07d209c9507..0d407b30076 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -54,10 +54,6 @@
 #include <asm/sal.h>
 #include <asm/cyclone.h>
 
-#define BAD_MADT_ENTRY(entry, end) (                                        \
-		(!entry) || (unsigned long)entry + sizeof(*entry) > end ||  \
-		((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
-
 #define PREFIX			"ACPI: "
 
 unsigned int acpi_cpei_override;
@@ -803,14 +799,9 @@ int acpi_isa_irq_to_gsi(unsigned isa_irq, u32 *gsi)
  *  ACPI based hotplug CPU support
  */
 #ifdef CONFIG_ACPI_HOTPLUG_CPU
-static
-int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
+static int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
 {
 #ifdef CONFIG_ACPI_NUMA
-	int pxm_id;
-	int nid;
-
-	pxm_id = acpi_get_pxm(handle);
 	/*
 	 * We don't have cpu-only-node hotadd. But if the system equips
 	 * SRAT table, pxm is already found and node is ready.
@@ -818,11 +809,10 @@ int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
 	 * This code here is for the system which doesn't have full SRAT
   	 * table for possible cpus.
 	 */
-	nid = acpi_map_pxm_to_node(pxm_id);
 	node_cpuid[cpu].phys_id = physid;
-	node_cpuid[cpu].nid = nid;
+	node_cpuid[cpu].nid = acpi_get_node(handle);
 #endif
-	return (0);
+	return 0;
 }
 
 int additional_cpus __initdata = -1;
@@ -929,7 +919,7 @@ static acpi_status acpi_map_iosapic(acpi_handle handle, u32 depth,
 	union acpi_object *obj;
 	struct acpi_madt_io_sapic *iosapic;
 	unsigned int gsi_base;
-	int pxm, node;
+	int node;
 
 	/* Only care about objects w/ a method that returns the MADT */
 	if (ACPI_FAILURE(acpi_evaluate_object(handle, "_MAT", NULL, &buffer)))
@@ -956,17 +946,9 @@ static acpi_status acpi_map_iosapic(acpi_handle handle, u32 depth,
 
 	kfree(buffer.pointer);
 
-	/*
-	 * OK, it's an IOSAPIC MADT entry, look for a _PXM value to tell
-	 * us which node to associate this with.
-	 */
-	pxm = acpi_get_pxm(handle);
-	if (pxm < 0)
-		return AE_OK;
-
-	node = pxm_to_node(pxm);
-
-	if (node >= MAX_NUMNODES || !node_online(node) ||
+	/* OK, it's an IOSAPIC MADT entry; associate it with a node */
+	node = acpi_get_node(handle);
+	if (node == NUMA_NO_NODE || !node_online(node) ||
 	    cpumask_empty(cpumask_of_node(node)))
 		return AE_OK;
 
diff --git a/arch/ia64/kernel/err_inject.c b/arch/ia64/kernel/err_inject.c
index f59c0b844e8..0c161ed6d18 100644
--- a/arch/ia64/kernel/err_inject.c
+++ b/arch/ia64/kernel/err_inject.c
@@ -269,12 +269,17 @@ err_inject_init(void)
 #ifdef ERR_INJ_DEBUG
 	printk(KERN_INFO "Enter error injection driver.\n");
 #endif
+
+	cpu_notifier_register_begin();
+
 	for_each_online_cpu(i) {
 		err_inject_cpu_callback(&err_inject_cpu_notifier, CPU_ONLINE,
 				(void *)(long)i);
 	}
 
-	register_hotcpu_notifier(&err_inject_cpu_notifier);
+	__register_hotcpu_notifier(&err_inject_cpu_notifier);
+
+	cpu_notifier_register_done();
 
 	return 0;
 }
@@ -288,11 +293,17 @@ err_inject_exit(void)
 #ifdef ERR_INJ_DEBUG
 	printk(KERN_INFO "Exit error injection driver.\n");
 #endif
+
+	cpu_notifier_register_begin();
+
 	for_each_online_cpu(i) {
 		sys_dev = get_cpu_device(i);
 		sysfs_remove_group(&sys_dev->kobj, &err_inject_attr_group);
 	}
-	unregister_hotcpu_notifier(&err_inject_cpu_notifier);
+
+	__unregister_hotcpu_notifier(&err_inject_cpu_notifier);
+
+	cpu_notifier_register_done();
 }
 
 module_init(err_inject_init);
diff --git a/arch/ia64/kernel/ftrace.c b/arch/ia64/kernel/ftrace.c
index 7fc8c961b1f..3b0c2aa0785 100644
--- a/arch/ia64/kernel/ftrace.c
+++ b/arch/ia64/kernel/ftrace.c
@@ -198,9 +198,7 @@ int ftrace_update_ftrace_func(ftrace_func_t func)
 }
 
 /* run from kstop_machine */
-int __init ftrace_dyn_arch_init(void *data)
+int __init ftrace_dyn_arch_init(void)
 {
-	*(unsigned long *)data = 0;
-
 	return 0;
 }
diff --git a/arch/ia64/kernel/palinfo.c b/arch/ia64/kernel/palinfo.c
index ab333284f4b..c39c3cd3ac3 100644
--- a/arch/ia64/kernel/palinfo.c
+++ b/arch/ia64/kernel/palinfo.c
@@ -996,13 +996,17 @@ palinfo_init(void)
 	if (!palinfo_dir)
 		return -ENOMEM;
 
+	cpu_notifier_register_begin();
+
 	/* Create palinfo dirs in /proc for all online cpus */
 	for_each_online_cpu(i) {
 		create_palinfo_proc_entries(i);
 	}
 
 	/* Register for future delivery via notify registration */
-	register_hotcpu_notifier(&palinfo_cpu_notifier);
+	__register_hotcpu_notifier(&palinfo_cpu_notifier);
+
+	cpu_notifier_register_done();
 
 	return 0;
 }
diff --git a/arch/ia64/kernel/salinfo.c b/arch/ia64/kernel/salinfo.c
index 960a396f592..ee9719eebb1 100644
--- a/arch/ia64/kernel/salinfo.c
+++ b/arch/ia64/kernel/salinfo.c
@@ -635,6 +635,8 @@ salinfo_init(void)
 					   (void *)salinfo_entries[i].feature);
 	}
 
+	cpu_notifier_register_begin();
+
 	for (i = 0; i < ARRAY_SIZE(salinfo_log_name); i++) {
 		data = salinfo_data + i;
 		data->type = i;
@@ -669,7 +671,9 @@ salinfo_init(void)
 	salinfo_timer.function = &salinfo_timeout;
 	add_timer(&salinfo_timer);
 
-	register_hotcpu_notifier(&salinfo_cpu_notifier);
+	__register_hotcpu_notifier(&salinfo_cpu_notifier);
+
+	cpu_notifier_register_done();
 
 	return 0;
 }
diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c
index ca69a5a96dc..f295f9abba4 100644
--- a/arch/ia64/kernel/topology.c
+++ b/arch/ia64/kernel/topology.c
@@ -454,12 +454,16 @@ static int __init cache_sysfs_init(void)
 {
 	int i;
 
+	cpu_notifier_register_begin();
+
 	for_each_online_cpu(i) {
 		struct device *sys_dev = get_cpu_device((unsigned int)i);
 		cache_add_dev(sys_dev);
 	}
 
-	register_hotcpu_notifier(&cache_cpu_notifier);
+	__register_hotcpu_notifier(&cache_cpu_notifier);
+
+	cpu_notifier_register_done();
 
 	return 0;
 }