1 #ifndef _ASM_X86_MMU_H
2 #define _ASM_X86_MMU_H
3 
4 #include <linux/spinlock.h>
5 #include <linux/mutex.h>
6 
7 /*
8  * The x86 doesn't have a mmu context, but
9  * we put the segment information here.
10  */
11 typedef struct {
12 	void *ldt;
13 	int size;
14 
15 #ifdef CONFIG_X86_64
16 	/* True if mm supports a task running in 32 bit compatibility mode. */
17 	unsigned short ia32_compat;
18 #endif
19 
20 	struct mutex lock;
21 	void *vdso;
22 } mm_context_t;
23 
24 #ifdef CONFIG_SMP
25 void leave_mm(int cpu);
26 #else
leave_mm(int cpu)27 static inline void leave_mm(int cpu)
28 {
29 }
30 #endif
31 
32 #endif /* _ASM_X86_MMU_H */
33