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File: [Development] / linux-2.6-xfs-all / include / asm-x86 / current.h (download)

Revision 1.2, Fri Oct 3 17:46:45 2008 UTC (9 years ago) by lachlan.longdrop.melbourne.sgi.com
Branch: MAIN
CVS Tags: HEAD
Changes since 1.1: +38 -4 lines 

Merge up to 2.6.27-rc8
Merge of 2.6.x-xfs-melb:linux:32254b by kenmcd.

#ifndef _X86_CURRENT_H
#define _X86_CURRENT_H

#ifdef CONFIG_X86_32
#include <linux/compiler.h>
#include <asm/percpu.h>

struct task_struct;

DECLARE_PER_CPU(struct task_struct *, current_task);
static __always_inline struct task_struct *get_current(void)
{
	return x86_read_percpu(current_task);
}

#else /* X86_32 */

#ifndef __ASSEMBLY__
#include <asm/pda.h>

struct task_struct;

static __always_inline struct task_struct *get_current(void)
{
	return read_pda(pcurrent);
}

#else /* __ASSEMBLY__ */

#include <asm/asm-offsets.h>
#define GET_CURRENT(reg) movq %gs:(pda_pcurrent),reg

#endif /* __ASSEMBLY__ */

#endif /* X86_32 */

#define current get_current()

#endif /* X86_CURRENT_H */