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| author | Grant Likely <grant.likely@linaro.org> | 2014-03-04 09:44:10 +0100 |
|---|---|---|
| committer | Grant Likely <grant.likely@linaro.org> | 2014-03-04 09:44:10 +0100 |
| commit | dab2310d9d90eded48625c5382c6a60389bf8ca9 (patch) | |
| tree | 9327cc815d69dec23aebf03407e3fa82b6d2fbaa /arch/x86/kernel/irq.c | |
| parent | Revert "of: fix of_update_property()" (diff) | |
| parent | Linux 3.14-rc5 (diff) | |
| download | linux-dab2310d9d90eded48625c5382c6a60389bf8ca9.tar.xz linux-dab2310d9d90eded48625c5382c6a60389bf8ca9.zip | |
Merge tag 'v3.14-rc5' into HEAD
Linux 3.14-rc5
Diffstat (limited to 'arch/x86/kernel/irq.c')
| -rw-r--r-- | arch/x86/kernel/irq.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c index dbb60878b744..d99f31d9a750 100644 --- a/arch/x86/kernel/irq.c +++ b/arch/x86/kernel/irq.c @@ -266,6 +266,14 @@ __visible void smp_trace_x86_platform_ipi(struct pt_regs *regs) EXPORT_SYMBOL_GPL(vector_used_by_percpu_irq); #ifdef CONFIG_HOTPLUG_CPU + +/* These two declarations are only used in check_irq_vectors_for_cpu_disable() + * below, which is protected by stop_machine(). Putting them on the stack + * results in a stack frame overflow. Dynamically allocating could result in a + * failure so declare these two cpumasks as global. + */ +static struct cpumask affinity_new, online_new; + /* * This cpu is going to be removed and its vectors migrated to the remaining * online cpus. Check to see if there are enough vectors in the remaining cpus. @@ -277,7 +285,6 @@ int check_irq_vectors_for_cpu_disable(void) unsigned int this_cpu, vector, this_count, count; struct irq_desc *desc; struct irq_data *data; - struct cpumask affinity_new, online_new; this_cpu = smp_processor_id(); cpumask_copy(&online_new, cpu_online_mask); |