include/asm-x86/mmu.h

   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  * cpu_vm_mask is used to optimize ldt flushing.
  12  */
  13 typedef struct {
  14         void *ldt;
  15 #ifdef CONFIG_X86_64
  16         rwlock_t ldtlock;
  17 #endif
  18         int size;
  19         struct mutex lock;
  20         void *vdso;
  21 } mm_context_t;
  22
  23 #ifdef CONFIG_SMP
  24 void leave_mm(int cpu);
  25 #else
  26 static inline void leave_mm(int cpu)
  27 {
  28 }
  29 #endif
  30
  31 #endif /* _ASM_X86_MMU_H */