user/sven/linux.git/include/linux/ceph/osd_client.h, branch v3.18.67

libceph: nuke ceph_osdc_unregister_linger_request()

2014-07-08T11:08:45Z

Remove now unused ceph_osdc_unregister_linger_request(). Signed-off-by: Ilya Dryomov Reviewed-by: Alex Elder

libceph: introduce ceph_osdc_cancel_request()

2014-07-08T11:08:44Z

Introduce ceph_osdc_cancel_request() intended for canceling requests from the higher layers (rbd and cephfs). Because higher layers are in charge and are supposed to know what and when they are canceling, the request is not completed, only unref'ed and removed from the libceph data structures. __cancel_request() is no longer called before __unregister_request(), because __unregister_request() unconditionally revokes r_request and there is no point in trying to do it twice. Signed-off-by: Ilya Dryomov Reviewed-by: Alex Elder

libceph: move and add dout()s to ceph_osdc_request_{get,put}()

2014-07-08T11:08:43Z

Add dout()s to ceph_osdc_request_{get,put}(). Also move them to .c and turn kref release callback into a static function. Signed-off-by: Ilya Dryomov Reviewed-by: Alex Elder

libceph: rename ceph_osd_request::r_linger_osd to r_linger_osd_item

2014-07-08T11:08:42Z

So that: req->r_osd_item --> osd->o_requests list req->r_linger_osd_item --> osd->o_linger_requests list Signed-off-by: Ilya Dryomov Reviewed-by: Alex Elder

libceph: bump CEPH_OSD_MAX_OP to 3

2014-04-03T02:33:52Z

Our longest osd request now contains 3 ops: copyup+hint+write. Also, CEPH_OSD_MAX_OP value in a BUG_ON in rbd_osd_req_callback() was hard-coded to 2. Fix it, and switch to rbd_assert while at it. Signed-off-by: Ilya Dryomov Reviewed-by: Sage Weil Reviewed-by: Alex Elder

libceph: add support for CEPH_OSD_OP_SETALLOCHINT osd op

2014-04-03T02:33:51Z

This is primarily for rbd's benefit and is supposed to combat fragmentation: "... knowing that rbd images have a 4m size, librbd can pass a hint that will let the osd do the xfs allocation size ioctl on new files so that they are allocated in 1m or 4m chunks. We've seen cases where users with rbd workloads have very high levels of fragmentation in xfs and this would mitigate that and probably have a pretty nice performance benefit." SETALLOCHINT is considered advisory, so our backwards compatibility mechanism here is to set FAILOK flag for all SETALLOCHINT ops. Signed-off-by: Ilya Dryomov Reviewed-by: Sage Weil Reviewed-by: Alex Elder

libceph: encode CEPH_OSD_OP_FLAG_* op flags

2014-04-03T02:33:51Z

Encode ceph_osd_op::flags field so that it gets sent over the wire. Signed-off-by: Ilya Dryomov Reviewed-by: Sage Weil Reviewed-by: Alex Elder

libceph: follow redirect replies from osds

2014-01-27T21:57:53Z

Follow redirect replies from osds, for details see ceph.git commit fbbe3ad1220799b7bb00ea30fce581c5eadaf034. v1 (current) version of redirect reply consists of oloc and oid, which expands to pool, key, nspace, hash and oid. However, server-side code that would populate anything other than pool doesn't exist yet, and hence this commit adds support for pool redirects only. To make sure that future server-side updates don't break us, we decode all fields and, if any of key, nspace, hash or oid have a non-default value, error out with "corrupt osd_op_reply ..." message. Signed-off-by: Ilya Dryomov Reviewed-by: Sage Weil

libceph: rename ceph_osd_request::r_{oloc,oid} to r_base_{oloc,oid}

2014-01-27T21:57:49Z

Rename ceph_osd_request::r_{oloc,oid} to r_base_{oloc,oid} before introducing r_target_{oloc,oid} needed for redirects. Signed-off-by: Ilya Dryomov Reviewed-by: Sage Weil

libceph: introduce and start using oid abstraction

2014-01-27T21:57:28Z

In preparation for tiering support, which would require having two (base and target) object names for each osd request and also copying those names around, introduce struct ceph_object_id (oid) and a couple helpers to facilitate those copies and encapsulate the fact that object name is not necessarily a NUL-terminated string. Signed-off-by: Ilya Dryomov Reviewed-by: Sage Weil