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Diffstat (limited to 'include/asm-x86/current.h')
-rw-r--r--include/asm-x86/current.h42
1 files changed, 38 insertions, 4 deletions
diff --git a/include/asm-x86/current.h b/include/asm-x86/current.h
index d2526d3f7346..7515c19d4988 100644
--- a/include/asm-x86/current.h
+++ b/include/asm-x86/current.h
@@ -1,5 +1,39 @@
1#ifndef _X86_CURRENT_H
2#define _X86_CURRENT_H
3
1#ifdef CONFIG_X86_32 4#ifdef CONFIG_X86_32
2# include "current_32.h" 5#include <linux/compiler.h>
3#else 6#include <asm/percpu.h>
4# include "current_64.h" 7
5#endif 8struct task_struct;
9
10DECLARE_PER_CPU(struct task_struct *, current_task);
11static __always_inline struct task_struct *get_current(void)
12{
13 return x86_read_percpu(current_task);
14}
15
16#else /* X86_32 */
17
18#ifndef __ASSEMBLY__
19#include <asm/pda.h>
20
21struct task_struct;
22
23static __always_inline struct task_struct *get_current(void)
24{
25 return read_pda(pcurrent);
26}
27
28#else /* __ASSEMBLY__ */
29
30#include <asm/asm-offsets.h>
31#define GET_CURRENT(reg) movq %gs:(pda_pcurrent),reg
32
33#endif /* __ASSEMBLY__ */
34
35#endif /* X86_32 */
36
37#define current get_current()
38
39#endif /* X86_CURRENT_H */