hash.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef CEPH_CRUSH_HASH_H
 3#define CEPH_CRUSH_HASH_H
 4
 5#ifdef __KERNEL__
 6# include <linux/types.h>
 7#else
 8# include "crush_compat.h"
 9#endif
10
11#define CRUSH_HASH_RJENKINS1   0
12
13#define CRUSH_HASH_DEFAULT CRUSH_HASH_RJENKINS1
14
15extern const char *crush_hash_name(int type);
16
17extern __u32 crush_hash32(int type, __u32 a);
18extern __u32 crush_hash32_2(int type, __u32 a, __u32 b);
19extern __u32 crush_hash32_3(int type, __u32 a, __u32 b, __u32 c);
20extern __u32 crush_hash32_4(int type, __u32 a, __u32 b, __u32 c, __u32 d);
21extern __u32 crush_hash32_5(int type, __u32 a, __u32 b, __u32 c, __u32 d,
22			    __u32 e);
23
24#endif