2008-05-10 09:09:48 +07:00
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#ifndef _X86_CURRENT_H
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#define _X86_CURRENT_H
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2007-10-11 16:20:03 +07:00
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#ifdef CONFIG_X86_32
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2008-05-10 09:09:48 +07:00
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#include <linux/compiler.h>
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#include <asm/percpu.h>
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struct task_struct;
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DECLARE_PER_CPU(struct task_struct *, current_task);
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static __always_inline struct task_struct *get_current(void)
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{
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return x86_read_percpu(current_task);
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}
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#else /* X86_32 */
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#ifndef __ASSEMBLY__
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#include <asm/pda.h>
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struct task_struct;
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static __always_inline struct task_struct *get_current(void)
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{
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return read_pda(pcurrent);
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}
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#else /* __ASSEMBLY__ */
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#include <asm/asm-offsets.h>
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#define GET_CURRENT(reg) movq %gs:(pda_pcurrent),reg
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#endif /* __ASSEMBLY__ */
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#endif /* X86_32 */
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#define current get_current()
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#endif /* X86_CURRENT_H */
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