linux.git/net/ceph/debugfs.c, branch v4.13

libceph: osd_state is 32 bits wide in luminous

2017-07-07T15:25:19+00:00

Signed-off-by: Ilya Dryomov

libceph: pg_upmap[_items] infrastructure

2017-07-07T15:25:18+00:00

pg_temp and pg_upmap encodings are the same (PG -> array of osds),
except for the incremental remove: it's an empty mapping in new_pg_temp
for pg_temp and a separate old_pg_upmap set for pg_upmap.  (This isn't
to allow for empty pg_upmap mappings -- apparently, pg_temp just wasn't
looked at as an example for pg_upmap encoding.)

Reuse __decode_pg_temp() for decoding pg_upmap and new_pg_upmap.
__decode_pg_temp() stores into pg_temp union member, but since pg_upmap
union member is identical, reading through pg_upmap later is OK.

Signed-off-by: Ilya Dryomov

libceph: respect RADOS_BACKOFF backoffs

2017-07-07T15:25:17+00:00

Signed-off-by: Ilya Dryomov

libceph: make sure need_resend targets reflect latest map

2017-07-07T15:25:16+00:00

Otherwise we may miss events like PG splits, pool deletions, etc when
we get multiple incremental maps at once.  Because check_pool_dne() can
now be fed an unlinked request, finish_request() needed to be taught to
handle unlinked requests.

Signed-off-by: Ilya Dryomov

libceph: introduce ceph_spg, ceph_pg_to_primary_shard()

2017-07-07T15:25:15+00:00

Store both raw pgid and actual spgid in ceph_osd_request_target.

Signed-off-by: Ilya Dryomov

libceph: add an epoch_barrier field to struct ceph_osd_client

2017-05-04T07:19:21+00:00

Cephfs can get cap update requests that contain a new epoch barrier in
them. When that happens we want to pause all OSD traffic until the right
map epoch arrives.

Add an epoch_barrier field to ceph_osd_client that is protected by the
osdc->lock rwsem. When the barrier is set, and the current OSD map
epoch is below that, pause the request target when submitting the
request or when revisiting it. Add a way for upper layers (cephfs)
to update the epoch_barrier as well.

If we get a new map, compare the new epoch against the barrier before
kicking requests and request another map if the map epoch is still lower
than the one we want.

If we get a map with a full pool, or at quota condition, then set the
barrier to the current epoch value.

Signed-off-by: Jeff Layton 
Reviewed-by: Ilya Dryomov 
Signed-off-by: Ilya Dryomov

libceph: remove req->r_replay_version

2017-05-04T07:19:20+00:00

Nothing uses this anymore with the removal of the ack vs. commit code.
Remove the field and just encode zeroes into place in the request
encoding.

Signed-off-by: Jeff Layton 
Reviewed-by: Ilya Dryomov 
Signed-off-by: Ilya Dryomov

libceph: rados pool namespace support

2016-07-28T00:55:37+00:00

Add pool namesapce pointer to struct ceph_file_layout and struct
ceph_object_locator. Pool namespace is used by when mapping object
to PG, it's also used when composing OSD request.

The namespace pointer in struct ceph_file_layout is RCU protected.
So libceph can read namespace without taking lock.

Signed-off-by: Yan, Zheng 
[idryomov@gmail.com: ceph_oloc_destroy(), misc minor changes]
Signed-off-by: Ilya Dryomov

libceph: support for subscribing to "mdsmap." maps

2016-05-25T23:15:30+00:00

Signed-off-by: Ilya Dryomov

libceph: take osdc->lock in osdmap_show() and dump flags in hex

2016-05-25T23:15:29+00:00

There is now about a dozen CEPH_OSDMAP_* flags.  This is a debugging
interface, so just dump in hex instead of spelling each flag out.

Signed-off-by: Ilya Dryomov