Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[cascardo/linux.git] / arch / i386 / kernel / cpu / cpufreq / speedstep-centrino.c

diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
index 5113e92..35489fd 100644 (file)
--- a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
+++ b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
@@ -533,9 +533,9 @@ static int centrino_cpu_init_acpi(struct cpufreq_policy *policy)
 
        /* notify BIOS that we exist */
        acpi_processor_notify_smm(THIS_MODULE);
-       printk("speedstep-centrino with X86_SPEEDSTEP_CENTRINO_ACPI"
-                       "config is deprecated.\n "
-                       "Use X86_ACPI_CPUFREQ (acpi-cpufreq instead.\n" );
+       printk("speedstep-centrino with X86_SPEEDSTEP_CENTRINO_ACPI "
+              "config is deprecated.\n "
+              "Use X86_ACPI_CPUFREQ (acpi-cpufreq) instead.\n" );
 
        return 0;
 
@@ -720,6 +720,7 @@ static int centrino_target (struct cpufreq_policy *policy,
                        cpu_set(j, set_mask);
 
                set_cpus_allowed(current, set_mask);
+               preempt_disable();
                if (unlikely(!cpu_isset(smp_processor_id(), set_mask))) {
                        dprintk("couldn't limit to CPUs in this domain\n");
                        retval = -EAGAIN;
@@ -727,6 +728,7 @@ static int centrino_target (struct cpufreq_policy *policy,
                                /* We haven't started the transition yet. */
                                goto migrate_end;
                        }
+                       preempt_enable();
                        break;
                }
 
@@ -761,10 +763,13 @@ static int centrino_target (struct cpufreq_policy *policy,
                }
 
                wrmsr(MSR_IA32_PERF_CTL, oldmsr, h);
-               if (policy->shared_type == CPUFREQ_SHARED_TYPE_ANY)
+               if (policy->shared_type == CPUFREQ_SHARED_TYPE_ANY) {
+                       preempt_enable();
                        break;
+               }
 
                cpu_set(j, covered_cpus);
+               preempt_enable();
        }
 
        for_each_cpu_mask(k, online_policy_cpus) {
@@ -796,8 +801,11 @@ static int centrino_target (struct cpufreq_policy *policy,
                        cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
                }
        }
+       set_cpus_allowed(current, saved_mask);
+       return 0;
 
 migrate_end:
+       preempt_enable();
        set_cpus_allowed(current, saved_mask);
        return 0;
 }