提交 cd3adf52 编写于 作者: T Tejun Heo 提交者: Ingo Molnar

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: NTejun Heo <tj@kernel.org>
上级 a338af2c
......@@ -3,8 +3,13 @@
*/
#include <linux/module.h>
#include <asm/smp.h>
#include <asm/sections.h>
#ifdef CONFIG_X86_64
DEFINE_PER_CPU(unsigned long, this_cpu_off) = (unsigned long)__per_cpu_load;
#else
DEFINE_PER_CPU(unsigned long, this_cpu_off);
#endif
EXPORT_PER_CPU_SYMBOL(this_cpu_off);
#ifdef CONFIG_X86_32
......
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