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| author | Yehuda Sadeh <yehuda@hq.newdream.net> | 2010-04-06 15:14:15 -0700 |
|---|---|---|
| committer | Sage Weil <sage@newdream.net> | 2010-10-20 15:37:28 -0700 |
| commit | 3d14c5d2b6e15c21d8e5467dc62d33127c23a644 (patch) | |
| tree | 7d123c47847df9d1e865b6b78dc7da3fe739b704 /include/linux/crush/hash.h | |
| parent | ae1533b62b3369e6ae32338f4a77d64d0e88f676 (diff) | |
| download | op-kernel-dev-3d14c5d2b6e15c21d8e5467dc62d33127c23a644.zip op-kernel-dev-3d14c5d2b6e15c21d8e5467dc62d33127c23a644.tar.gz | |
ceph: factor out libceph from Ceph file system
This factors out protocol and low-level storage parts of ceph into a
separate libceph module living in net/ceph and include/linux/ceph. This
is mostly a matter of moving files around. However, a few key pieces
of the interface change as well:
- ceph_client becomes ceph_fs_client and ceph_client, where the latter
captures the mon and osd clients, and the fs_client gets the mds client
and file system specific pieces.
- Mount option parsing and debugfs setup is correspondingly broken into
two pieces.
- The mon client gets a generic handler callback for otherwise unknown
messages (mds map, in this case).
- The basic supported/required feature bits can be expanded (and are by
ceph_fs_client).
No functional change, aside from some subtle error handling cases that got
cleaned up in the refactoring process.
Signed-off-by: Sage Weil <sage@newdream.net>
Diffstat (limited to 'include/linux/crush/hash.h')
| -rw-r--r-- | include/linux/crush/hash.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/linux/crush/hash.h b/include/linux/crush/hash.h new file mode 100644 index 0000000..91e8842 --- /dev/null +++ b/include/linux/crush/hash.h @@ -0,0 +1,17 @@ +#ifndef CEPH_CRUSH_HASH_H +#define CEPH_CRUSH_HASH_H + +#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 |
