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Subject[tip:x86/urgent] cpumask: Use modern cpumask style in arch/x86/kernel/cpu/mcheck/mce-inject.c
Commit-ID:  6ac5c5310ca9d7dd3d7e677c2715b1f06a348330
Gitweb: http://git.kernel.org/tip/6ac5c5310ca9d7dd3d7e677c2715b1f06a348330
Author: Rusty Russell <rusty@rustcorp.com.au>
AuthorDate: Tue, 3 Nov 2009 14:58:30 +1030
Committer: Ingo Molnar <mingo@elte.hu>
CommitDate: Wed, 4 Nov 2009 13:19:01 +0100

cpumask: Use modern cpumask style in arch/x86/kernel/cpu/mcheck/mce-inject.c

Note that there's no freeing the cpu var, since this module has
no unload function.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Huang Ying <ying.huang@intel.com>
LKML-Reference: <200911031458.30987.rusty@rustcorp.com.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
arch/x86/kernel/cpu/mcheck/mce-inject.c | 22 ++++++++++++----------
1 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/arch/x86/kernel/cpu/mcheck/mce-inject.c b/arch/x86/kernel/cpu/mcheck/mce-inject.c
index 472763d..73734ba 100644
--- a/arch/x86/kernel/cpu/mcheck/mce-inject.c
+++ b/arch/x86/kernel/cpu/mcheck/mce-inject.c
@@ -74,7 +74,7 @@ static void raise_exception(struct mce *m, struct pt_regs *pregs)
m->finished = 0;
}

-static cpumask_t mce_inject_cpumask;
+static cpumask_var_t mce_inject_cpumask;

static int mce_raise_notify(struct notifier_block *self,
unsigned long val, void *data)
@@ -82,9 +82,9 @@ static int mce_raise_notify(struct notifier_block *self,
struct die_args *args = (struct die_args *)data;
int cpu = smp_processor_id();
struct mce *m = &__get_cpu_var(injectm);
- if (val != DIE_NMI_IPI || !cpu_isset(cpu, mce_inject_cpumask))
+ if (val != DIE_NMI_IPI || !cpumask_test_cpu(cpu, mce_inject_cpumask))
return NOTIFY_DONE;
- cpu_clear(cpu, mce_inject_cpumask);
+ cpumask_clear_cpu(cpu, mce_inject_cpumask);
if (m->inject_flags & MCJ_EXCEPTION)
raise_exception(m, args->regs);
else if (m->status)
@@ -148,22 +148,22 @@ static void raise_mce(struct mce *m)
unsigned long start;
int cpu;
get_online_cpus();
- mce_inject_cpumask = cpu_online_map;
- cpu_clear(get_cpu(), mce_inject_cpumask);
+ cpumask_copy(mce_inject_cpumask, cpu_online_mask);
+ cpumask_clear_cpu(get_cpu(), mce_inject_cpumask);
for_each_online_cpu(cpu) {
struct mce *mcpu = &per_cpu(injectm, cpu);
if (!mcpu->finished ||
MCJ_CTX(mcpu->inject_flags) != MCJ_CTX_RANDOM)
- cpu_clear(cpu, mce_inject_cpumask);
+ cpumask_clear_cpu(cpu, mce_inject_cpumask);
}
- if (!cpus_empty(mce_inject_cpumask))
- apic->send_IPI_mask(&mce_inject_cpumask, NMI_VECTOR);
+ if (!cpumask_empty(mce_inject_cpumask))
+ apic->send_IPI_mask(mce_inject_cpumask, NMI_VECTOR);
start = jiffies;
- while (!cpus_empty(mce_inject_cpumask)) {
+ while (!cpumask_empty(mce_inject_cpumask)) {
if (!time_before(jiffies, start + 2*HZ)) {
printk(KERN_ERR
"Timeout waiting for mce inject NMI %lx\n",
- *cpus_addr(mce_inject_cpumask));
+ *cpumask_bits(mce_inject_cpumask));
break;
}
cpu_relax();
@@ -210,6 +210,8 @@ static ssize_t mce_write(struct file *filp, const char __user *ubuf,

static int inject_init(void)
{
+ if (!alloc_cpumask_var(&mce_inject_cpumask, GFP_KERNEL))
+ return -ENOMEM;
printk(KERN_INFO "Machine check injector initialized\n");
mce_chrdev_ops.write = mce_write;
register_die_notifier(&mce_raise_nb);

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