[linux-2.6-block.git] / include / linux / crush / hash.h

#ifndef CEPH_CRUSH_HASH_H
#define CEPH_CRUSH_HASH_H

#ifdef __KERNEL__
# include <linux/types.h>
#else
# include "crush_compat.h"
#endif

#define CRUSH_HASH_RJENKINS1   0

#define CRUSH_HASH_DEFAULT CRUSH_HASH_RJENKINS1

extern const char *crush_hash_name(int type);

extern __u32 crush_hash32(int type, __u32 a);
extern __u32 crush_hash32_2(int type, __u32 a, __u32 b);
extern __u32 crush_hash32_3(int type, __u32 a, __u32 b, __u32 c);
extern __u32 crush_hash32_4(int type, __u32 a, __u32 b, __u32 c, __u32 d);
extern __u32 crush_hash32_5(int type, __u32 a, __u32 b, __u32 c, __u32 d,
			    __u32 e);

#endif
Commit	Line	Data
5cd068c2 SW	1	#ifndef CEPH_CRUSH_HASH_H
5cd068c2 SW	2	#define CEPH_CRUSH_HASH_H
5ecc0a0f	3
b459be73 ID	4	#ifdef __KERNEL__
	5	# include <linux/types.h>
	6	#else
	7	# include "crush_compat.h"
	8	#endif
	9
fb690390 SW	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);
5ecc0a0f SW	22
5ecc0a0f SW	23	#endif