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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-08-18 15:35:59 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-08-18 15:35:59 +0200 |
| commit | 878f6e074e9a7784a6e351512eace4ccb3542eef (patch) | |
| tree | 7a22a91465ec075f537a02c29407457aeeabaab5 /drivers | |
| parent | 0e25246fb3d7455dc3405435da70156370e285ec (diff) | |
| download | linux-878f6e074e9a7784a6e351512eace4ccb3542eef.tar.bz2 | |
Revert "cpufreq: Use cpufreq_policy_list for iterating over policies"
Revert commit eb60852 (cpufreq: Use cpufreq_policy_list for iterating
over policies), because it breaks system suspend/resume on multiple
machines.
It either causes resume to block indefinitely or causes the BUG_ON()
in lock_policy_rwsem_##mode() to trigger on sysfs accesses to cpufreq
attributes.
Conflicts:
drivers/cpufreq/cpufreq.c
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/cpufreq/cpufreq.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 37a687467329..c0ef84d601b7 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -969,8 +969,8 @@ static int __cpufreq_add_dev(struct device *dev, struct subsys_interface *sif, struct cpufreq_policy *policy; unsigned long flags; #ifdef CONFIG_HOTPLUG_CPU - struct cpufreq_policy *tpolicy; struct cpufreq_governor *gov; + int sibling; #endif if (cpu_is_offline(cpu)) @@ -993,10 +993,11 @@ static int __cpufreq_add_dev(struct device *dev, struct subsys_interface *sif, #ifdef CONFIG_HOTPLUG_CPU /* Check if this cpu was hot-unplugged earlier and has siblings */ read_lock_irqsave(&cpufreq_driver_lock, flags); - list_for_each_entry(tpolicy, &cpufreq_policy_list, policy_list) { - if (cpumask_test_cpu(cpu, tpolicy->related_cpus)) { + for_each_online_cpu(sibling) { + struct cpufreq_policy *cp = per_cpu(cpufreq_cpu_data, sibling); + if (cp && cpumask_test_cpu(cpu, cp->related_cpus)) { read_unlock_irqrestore(&cpufreq_driver_lock, flags); - ret = cpufreq_add_policy_cpu(tpolicy, cpu, dev, frozen); + ret = cpufreq_add_policy_cpu(cp, cpu, dev, frozen); up_read(&cpufreq_rwsem); return ret; } |