x86: cleanup remaining cpumask_t code in mce_amd_64.c

Impact: Reduce memory usage, use new cpumask API.

Use cpumask_var_t for 'cpus' cpumask in struct threshold_bank and update
remaining old cpumask_t functions to new cpumask API.

Signed-off-by: Mike Travis <travis@sgi.com>

diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
index 8ae8c4f..4772e91 100644 (file)
--- a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
@@ -67,7 +67,7 @@ static struct threshold_block threshold_defaults = {
 struct threshold_bank {
        struct kobject *kobj;
        struct threshold_block *blocks;
-       cpumask_t cpus;
+       cpumask_var_t cpus;
 };
 static DEFINE_PER_CPU(struct threshold_bank *, threshold_banks[NR_BANKS]);
 
@@ -481,7 +481,7 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank)
 
 #ifdef CONFIG_SMP
        if (cpu_data(cpu).cpu_core_id && shared_bank[bank]) {   /* symlink */
-               i = first_cpu(per_cpu(cpu_core_map, cpu));
+               i = cpumask_first(&per_cpu(cpu_core_map, cpu));
 
                /* first core not up yet */
                if (cpu_data(i).cpu_core_id)
@@ -501,7 +501,7 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank)
                if (err)
                        goto out;
 
-               b->cpus = per_cpu(cpu_core_map, cpu);
+               cpumask_copy(b->cpus, &per_cpu(cpu_core_map, cpu));
                per_cpu(threshold_banks, cpu)[bank] = b;
                goto out;
        }
@@ -512,15 +512,20 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank)
                err = -ENOMEM;
                goto out;
        }
+       if (!alloc_cpumask_var(&b->cpus, GFP_KERNEL)) {
+               kfree(b);
+               err = -ENOMEM;
+               goto out;
+       }
 
        b->kobj = kobject_create_and_add(name, &per_cpu(device_mce, cpu).kobj);
        if (!b->kobj)
                goto out_free;
 
 #ifndef CONFIG_SMP
-       b->cpus = CPU_MASK_ALL;
+       cpumask_setall(b->cpus);
 #else
-       b->cpus = per_cpu(cpu_core_map, cpu);
+       cpumask_copy(b->cpus, &per_cpu(cpu_core_map, cpu));
 #endif
 
        per_cpu(threshold_banks, cpu)[bank] = b;
@@ -529,7 +534,7 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank)
        if (err)
                goto out_free;
 
-       for_each_cpu_mask_nr(i, b->cpus) {
+       for_each_cpu(i, b->cpus) {
                if (i == cpu)
                        continue;
 
@@ -545,6 +550,7 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank)
 
 out_free:
        per_cpu(threshold_banks, cpu)[bank] = NULL;
+       free_cpumask_var(b->cpus);
        kfree(b);
 out:
        return err;
@@ -619,7 +625,7 @@ static void threshold_remove_bank(unsigned int cpu, int bank)
 #endif
 
        /* remove all sibling symlinks before unregistering */
-       for_each_cpu_mask_nr(i, b->cpus) {
+       for_each_cpu(i, b->cpus) {
                if (i == cpu)
                        continue;
 
@@ -632,6 +638,7 @@ static void threshold_remove_bank(unsigned int cpu, int bank)
 free_out:
        kobject_del(b->kobj);
        kobject_put(b->kobj);
+       free_cpumask_var(b->cpus);
        kfree(b);
        per_cpu(threshold_banks, cpu)[bank] = NULL;
 }