linux-toradex.git/include/linux/ceph/osd_client.h, branch v4.14-rc7

libceph: make RECOVERY_DELETES feature create a new interval

2017-08-01T14:46:45+00:00

This is needed so that the OSDs can regenerate the missing set at the
start of a new interval where support for recovery deletes changed.

Signed-off-by: Ilya Dryomov 
Reviewed-by: Sage Weil

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: MOSDOp v8 encoding (actual spgid + full hash)

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

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: fold [l]req->last_force_resend into ceph_osd_request_target

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

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: allow requests to return immediately on full conditions if caller wishes

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

Usually, when the osd map is flagged as full or the pool is at quota,
write requests just hang. This is not what we want for cephfs, where
it would be better to simply report -ENOSPC back to userland instead
of stalling.

If the caller knows that it will want an immediate error return instead
of blocking on a full or at-quota error condition then allow it to set a
flag to request that behavior.

Set that flag in ceph_osdc_new_request (since ceph.ko is the only caller),
and on any other write request from ceph.ko.

A later patch will deal with requests that were submitted before the new
map showing the full condition came in.

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: convert ceph_osd.o_ref from atomic_t to refcount_t

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

refcount_t type and corresponding API should be
used instead of atomic_t when the variable is used as
a reference counter. This allows to avoid accidental
refcounter overflows that might lead to use-after-free
situations.

Signed-off-by: Elena Reshetova 
Signed-off-by: Hans Liljestrand 
Signed-off-by: Kees Cook 
Signed-off-by: David Windsor 
Signed-off-by: Ilya Dryomov