Merge branch 'cpus4096-for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'cpus4096-for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (77 commits)
  x86: setup_per_cpu_areas() cleanup
  cpumask: fix compile error when CONFIG_NR_CPUS is not defined
  cpumask: use alloc_cpumask_var_node where appropriate
  cpumask: convert shared_cpu_map in acpi_processor* structs to cpumask_var_t
  x86: use cpumask_var_t in acpi/boot.c
  x86: cleanup some remaining usages of NR_CPUS where s/b nr_cpu_ids
  sched: put back some stack hog changes that were undone in kernel/sched.c
  x86: enable cpus display of kernel_max and offlined cpus
  ia64: cpumask fix for is_affinity_mask_valid()
  cpumask: convert RCU implementations, fix
  xtensa: define __fls
  mn10300: define __fls
  m32r: define __fls
  h8300: define __fls
  frv: define __fls
  cris: define __fls
  cpumask: CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS
  cpumask: zero extra bits in alloc_cpumask_var_node
  cpumask: replace for_each_cpu_mask_nr with for_each_cpu in kernel/time/
  cpumask: convert mm/
  ...

1 files changed, 23 insertions, 8 deletions

diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 65d0b72777ea..29dc0c89d4af 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -538,9 +538,10 @@ static int __cpuinit _acpi_map_lsapic(acpi_handle handle, int *pcpu)
 	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
 	union acpi_object *obj;
 	struct acpi_madt_local_apic *lapic;
-	cpumask_t tmp_map, new_map;
+	cpumask_var_t tmp_map, new_map;
 	u8 physid;
 	int cpu;
+	int retval = -ENOMEM;
 
 	if (ACPI_FAILURE(acpi_evaluate_object(handle, "_MAT", NULL, &buffer)))
 		return -EINVAL;
@@ -569,23 +570,37 @@ static int __cpuinit _acpi_map_lsapic(acpi_handle handle, int *pcpu)
 	buffer.length = ACPI_ALLOCATE_BUFFER;
 	buffer.pointer = NULL;
 
-	tmp_map = cpu_present_map;
+	if (!alloc_cpumask_var(&tmp_map, GFP_KERNEL))
+		goto out;
+
+	if (!alloc_cpumask_var(&new_map, GFP_KERNEL))
+		goto free_tmp_map;
+
+	cpumask_copy(tmp_map, cpu_present_mask);
 	acpi_register_lapic(physid, lapic->lapic_flags & ACPI_MADT_ENABLED);
 
 	/*
 	 * If mp_register_lapic successfully generates a new logical cpu
 	 * number, then the following will get us exactly what was mapped
 	 */
-	cpus_andnot(new_map, cpu_present_map, tmp_map);
-	if (cpus_empty(new_map)) {
+	cpumask_andnot(new_map, cpu_present_mask, tmp_map);
+	if (cpumask_empty(new_map)) {
 		printk ("Unable to map lapic to logical cpu number\n");
-		return -EINVAL;
+		retval = -EINVAL;
+		goto free_new_map;
 	}
 
-	cpu = first_cpu(new_map);
+	cpu = cpumask_first(new_map);
 
 	*pcpu = cpu;
-	return 0;
+	retval = 0;
+
+free_new_map:
+	free_cpumask_var(new_map);
+free_tmp_map:
+	free_cpumask_var(tmp_map);
+out:
+	return retval;
 }
 
 /* wrapper to silence section mismatch warning */
@@ -598,7 +613,7 @@ EXPORT_SYMBOL(acpi_map_lsapic);
 int acpi_unmap_lsapic(int cpu)
 {
 	per_cpu(x86_cpu_to_apicid, cpu) = -1;
-	cpu_clear(cpu, cpu_present_map);
+	set_cpu_present(cpu, false);
 	num_processors--;
 
 	return (0);