fb690390e3
Make the integer hash function a property of the bucket it is used on. This allows us to gracefully add support for new hash functions without starting from scatch. Signed-off-by: Sage Weil <sage@newdream.net>
18 lines
518 B
C
18 lines
518 B
C
#ifndef _CRUSH_HASH_H
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#define _CRUSH_HASH_H
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#define CRUSH_HASH_RJENKINS1 0
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#define CRUSH_HASH_DEFAULT CRUSH_HASH_RJENKINS1
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extern const char *crush_hash_name(int type);
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extern __u32 crush_hash32(int type, __u32 a);
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extern __u32 crush_hash32_2(int type, __u32 a, __u32 b);
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extern __u32 crush_hash32_3(int type, __u32 a, __u32 b, __u32 c);
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extern __u32 crush_hash32_4(int type, __u32 a, __u32 b, __u32 c, __u32 d);
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extern __u32 crush_hash32_5(int type, __u32 a, __u32 b, __u32 c, __u32 d,
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__u32 e);
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#endif
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