diff options
| author | Yehuda Sadeh | 2010-04-07 00:14:15 +0200 |
|---|---|---|
| committer | Sage Weil | 2010-10-21 00:37:28 +0200 |
| commit | 3d14c5d2b6e15c21d8e5467dc62d33127c23a644 (patch) | |
| tree | 7d123c47847df9d1e865b6b78dc7da3fe739b704 /include/linux/crush/hash.h | |
| parent | ceph-rbd: osdc support for osd call and rollback operations (diff) | |
| download | kernel-qcow2-linux-3d14c5d2b6e15c21d8e5467dc62d33127c23a644.tar.gz kernel-qcow2-linux-3d14c5d2b6e15c21d8e5467dc62d33127c23a644.tar.xz kernel-qcow2-linux-3d14c5d2b6e15c21d8e5467dc62d33127c23a644.zip | |
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 000000000000..91e884230d5d --- /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 |