vm_area_struct成员

struct vm_area_struct {
  /* The first cache line has the info for VMA tree walking. */
  unsigned long vm_start;    /* Our start address within vm_mm. */
  unsigned long vm_end;    /* The first byte after our end address within vm_mm. */
  /* linked list of VM areas per task, sorted by address */
  struct vm_area_struct *vm_next, *vm_prev;
  struct rb_node vm_rb;
  struct mm_struct *vm_mm;  /* The address space we belong to. */
  struct list_head anon_vma_chain; /* Serialized by mmap_sem &
            * page_table_lock */
  struct anon_vma *anon_vma;  /* Serialized by page_table_lock */
  /* Function pointers to deal with this struct. */
  const struct vm_operations_struct *vm_ops;
  struct file * vm_file;    /* File we map to (can be NULL). */
  void * vm_private_data;    /* was vm_pte (shared mem) */
} __randomize_layout;