include/linux/crush/hash.h

   1 #ifndef CEPH_CRUSH_HASH_H
   2 #define CEPH_CRUSH_HASH_H
   3
   4 #ifdef __KERNEL__
   5 # include <linux/types.h>
   6 #else
   7 # include "crush_compat.h"
   8 #endif
   9
  10 #define CRUSH_HASH_RJENKINS1   0
  11
  12 #define CRUSH_HASH_DEFAULT CRUSH_HASH_RJENKINS1
  13
  14 extern const char *crush_hash_name(int type);
  15
  16 extern __u32 crush_hash32(int type, __u32 a);
  17 extern __u32 crush_hash32_2(int type, __u32 a, __u32 b);
  18 extern __u32 crush_hash32_3(int type, __u32 a, __u32 b, __u32 c);
  19 extern __u32 crush_hash32_4(int type, __u32 a, __u32 b, __u32 c, __u32 d);
  20 extern __u32 crush_hash32_5(int type, __u32 a, __u32 b, __u32 c, __u32 d,
  21                             __u32 e);
  22
  23 #endif