diff options
Diffstat (limited to 'include/asm-x86/current.h')
| -rw-r--r-- | include/asm-x86/current.h | 42 |
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 | 8 | struct task_struct; |
| 9 | |||
| 10 | DECLARE_PER_CPU(struct task_struct *, current_task); | ||
| 11 | static __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 | |||
| 21 | struct task_struct; | ||
| 22 | |||
| 23 | static __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 */ | ||
