include/linux/vmacache.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __LINUX_VMACACHE_H
   3 #define __LINUX_VMACACHE_H
   4
   5 #include <linux/sched.h>
   6 #include <linux/mm.h>
   7
   8 static inline void vmacache_flush(struct task_struct *tsk)
   9 {
  10         memset(tsk->vmacache.vmas, 0, sizeof(tsk->vmacache.vmas));
  11 }
  12
  13 extern void vmacache_update(unsigned long addr, struct vm_area_struct *newvma);
  14 extern struct vm_area_struct *vmacache_find(struct mm_struct *mm,
  15                                                     unsigned long addr);
  16
  17 #ifndef CONFIG_MMU
  18 extern struct vm_area_struct *vmacache_find_exact(struct mm_struct *mm,
  19                                                   unsigned long start,
  20                                                   unsigned long end);
  21 #endif
  22
  23 static inline void vmacache_invalidate(struct mm_struct *mm)
  24 {
  25         mm->vmacache_seqnum++;
  26 }
  27
  28 #endif /* __LINUX_VMACACHE_H */