cow.h

   1 /* user mode linux compatible COW file */
   2 #define COW_MAGIC 0x4f4f4f4d  /* MOOO */
   3 #define COW_VERSION 2
   4
   5 struct cow_header_v2 {
   6     uint32_t magic;
   7     uint32_t version;
   8     char backing_file[1024];
   9     int32_t mtime;
  10     uint64_t size;
  11     uint32_t sectorsize;
  12 };
  13