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crush: fix tree node weight lookup
[mirror_ubuntu-artful-kernel.git] / include / linux / crush / hash.h
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1#ifndef CEPH_CRUSH_HASH_H
2#define CEPH_CRUSH_HASH_H
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4#define CRUSH_HASH_RJENKINS1 0
5
6#define CRUSH_HASH_DEFAULT CRUSH_HASH_RJENKINS1
7
8extern const char *crush_hash_name(int type);
9
10extern __u32 crush_hash32(int type, __u32 a);
11extern __u32 crush_hash32_2(int type, __u32 a, __u32 b);
12extern __u32 crush_hash32_3(int type, __u32 a, __u32 b, __u32 c);
13extern __u32 crush_hash32_4(int type, __u32 a, __u32 b, __u32 c, __u32 d);
14extern __u32 crush_hash32_5(int type, __u32 a, __u32 b, __u32 c, __u32 d,
15 __u32 e);
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16
17#endif