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| author | Prarit Bhargava <prarit@redhat.com> | 2009-08-03 10:58:11 -0400 |
|---|---|---|
| committer | Dave Jones <davej@redhat.com> | 2009-08-04 14:32:10 -0400 |
| commit | 42c74b84c64633dd3badbfc2abd2ef1728b64b30 (patch) | |
| tree | 16b9378a38cde51f50078a2d5d41353d346d0dc4 /drivers/cpufreq/cpufreq.c | |
| parent | 26d204afa18f7df177f21bdb3759e0098ca8f7d5 (diff) | |
| download | blackbird-op-linux-42c74b84c64633dd3badbfc2abd2ef1728b64b30.tar.gz blackbird-op-linux-42c74b84c64633dd3badbfc2abd2ef1728b64b30.zip | |
[CPUFREQ] Do not set policy for offline cpus
Suspend/Resume fails on multi socket, multi core systems because the cpufreq
code erroneously sets the per_cpu policy_cpu value when a logical cpu is
offline.
This most notably results in missing sysfs files that are used to set the
cpu frequencies of the various cpus.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'drivers/cpufreq/cpufreq.c')
| -rw-r--r-- | drivers/cpufreq/cpufreq.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index b90eda8b3440..120d236c0ffb 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -924,6 +924,8 @@ static int cpufreq_add_dev(struct sys_device *sys_dev) spin_lock_irqsave(&cpufreq_driver_lock, flags); for_each_cpu(j, policy->cpus) { + if (!cpu_online(j)) + continue; per_cpu(cpufreq_cpu_data, j) = policy; per_cpu(policy_cpu, j) = policy->cpu; } |
