1965aae3c9
Change header guards named "ASM_X86__*" to "_ASM_X86_*" since: a. the double underscore is ugly and pointless. b. no leading underscore violates namespace constraints. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
40 lines
706 B
C
40 lines
706 B
C
#ifndef _ASM_X86_CURRENT_H
|
|
#define _ASM_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 /* _ASM_X86_CURRENT_H */
|