fs/ceph/crush/hash.h

   1 #ifndef CEPH_CRUSH_HASH_H
   2 #define CEPH_CRUSH_HASH_H
   3
   4 #define CRUSH_HASH_RJENKINS1   0
   5
   6 #define CRUSH_HASH_DEFAULT CRUSH_HASH_RJENKINS1
   7
   8 extern const char *crush_hash_name(int type);
   9
  10 extern __u32 crush_hash32(int type, __u32 a);
  11 extern __u32 crush_hash32_2(int type, __u32 a, __u32 b);
  12 extern __u32 crush_hash32_3(int type, __u32 a, __u32 b, __u32 c);
  13 extern __u32 crush_hash32_4(int type, __u32 a, __u32 b, __u32 c, __u32 d);
  14 extern __u32 crush_hash32_5(int type, __u32 a, __u32 b, __u32 c, __u32 d,
  15                             __u32 e);
  16
  17 #endif