x86_64: initialize this_cpu_off to __per_cpu_load
On x86_64, if get_per_cpu_var() is used before per cpu area is setup (if lockdep is turned on, it happens), it needs this_cpu_off to point to __per_cpu_load. Initialize accordingly. Signed-off-by: Tejun Heo <tj@kernel.org>
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@ -3,8 +3,13 @@
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*/
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#include <linux/module.h>
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#include <asm/smp.h>
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#include <asm/sections.h>
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#ifdef CONFIG_X86_64
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DEFINE_PER_CPU(unsigned long, this_cpu_off) = (unsigned long)__per_cpu_load;
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#else
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DEFINE_PER_CPU(unsigned long, this_cpu_off);
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#endif
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EXPORT_PER_CPU_SYMBOL(this_cpu_off);
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#ifdef CONFIG_X86_32
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