linux-dev/fs/ceph/crush, branch master

ceph: factor out libceph from Ceph file system

2010-10-20T22:37:28Z

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

ceph: clean up header guards

2010-08-02T03:11:42Z

Signed-off-by: Sage Weil

ceph: fix crush device 'out' threshold to 1.0, not 0.1

2010-07-05T16:44:17Z

Fix a typo that made any OSD weighted between 0.1 and 1.0 effectively weighted as 1.0 (fully in). Signed-off-by: Sage Weil

ceph: fix crush CHOOSE_LEAF when type is already a leaf

2010-06-24T19:58:14Z

We may not recurse for CHOOSE_LEAF if we start with a leaf node. When that happens, the out2 vector needs to be filled in with the result. Signed-off-by: Sage Weil

ceph: fix crush recursion

2010-06-24T19:55:48Z

There was a longstanding problem with recursion through intervening bucket types on complex hierarchies. Signed-off-by: Sage Weil

ceph: whitespace cleanup

2009-12-03T22:59:44Z

Signed-off-by: Sage Weil

ceph: make CRUSH hash function a bucket property

2009-11-08T04:18:22Z

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

ceph: make CRUSH hash functions non-inline

2009-11-07T00:39:26Z

These are way to big to be inline. I missed crush/* when doing the inline audit for akpm's review. Signed-off-by: Sage Weil

crush: always return a value from crush_bucket_choose

2009-11-02T01:53:24Z

Even when we encounter a corrupt bucket. We still BUG(). This fixes the warning fs/ceph/crush/mapper.c: In function 'crush_choose': fs/ceph/crush/mapper.c:352: warning: control may reach end of non-void function 'crush_bucket_choose' being inlined Signed-off-by: Sage Weil

ceph: gracefully avoid empty crush buckets

2009-10-07T17:59:34Z

This avoids a divide by zero when the input and/or map are malformed. Signed-off-by: Sage Weil