linux-toradex.git/include/linux/ceph/osd_client.h, branch v5.10-rc3

libceph: just have osd_req_op_init() return a pointer

2020-08-03T09:05:25+00:00

The caller can just ignore the return. No need for this wrapper that
just casts the other function to void.

[ idryomov: argument alignment ]

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

libceph: support for alloc hint flags

2020-06-01T21:32:35+00:00

Allow indicating future I/O pattern via flags.  This is supported since
Kraken (and bluestore persists flags together with expected_object_size
and expected_write_size).

Signed-off-by: Ilya Dryomov 
Reviewed-by: Jason Dillaman

libceph: support for balanced and localized reads

2020-06-01T11:22:53+00:00

OSD-side issues with reads from replica have been resolved in
Octopus.  Reading from replica should be safe wrt. unstable or
uncommitted state now, so add support for balanced and localized
reads.

There are two cases when a read from replica can't be served:

- OSD may silently drop the request, expecting the client to
  notice that the acting set has changed and resend via the usual
  means (handled with t->used_replica)

- OSD may return EAGAIN, expecting the client to resend to the
  primary, ignoring replica read flags (see handle_reply())

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

ceph: add read/write latency metric support

2020-06-01T11:22:51+00:00

Calculate the latency for OSD read requests. Add a new r_end_stamp
field to struct ceph_osd_request that will hold the time of that
the reply was received. Use that to calculate the RTT for each call,
and divide the sum of those by number of calls to get averate RTT.

Keep a tally of RTT for OSD writes and number of calls to track average
latency of OSD writes.

URL: https://tracker.ceph.com/issues/43215
Signed-off-by: Xiubo Li 
Reviewed-by: Jeff Layton 
Signed-off-by: Ilya Dryomov

ceph: move ceph_osdc_{read,write}pages to ceph.ko

2020-03-30T10:42:40+00:00

Since these helpers are only used by ceph.ko, move them there and
rename them with _sync_ qualifiers.

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

ceph: use copy-from2 op in copy_file_range

2020-01-27T15:53:40+00:00

Instead of using the copy-from operation, switch copy_file_range to the
new copy-from2 operation, which allows to send the truncate_seq and
truncate_size parameters.

If an OSD does not support the copy-from2 operation it will return
-EOPNOTSUPP.  In that case, the kernel client will stop trying to do
remote object copies for this fs client and will always use the generic
VFS copy_file_range.

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

libceph: add function that clears osd client's abort_err

2019-09-16T10:06:23+00:00

Signed-off-by: "Yan, Zheng" 
Reviewed-by: Jeff Layton 
Signed-off-by: Ilya Dryomov

libceph: add function that reset client's entity addr

2019-09-16T10:06:23+00:00

This function also re-open connections to OSD/MON, and re-send in-flight
OSD requests after re-opening connections to OSD.

Signed-off-by: "Yan, Zheng" 
Reviewed-by: Jeff Layton 
Signed-off-by: Ilya Dryomov

libceph: export osd_req_op_data() macro

2019-07-08T12:01:45+00:00

We already have one exported wrapper around it for extent.osd_data and
rbd_object_map_update_finish() needs another one for cls.request_data.

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

libceph: change ceph_osdc_call() to take page vector for response

2019-07-08T12:01:45+00:00

This will be used for loading object map.  rbd_obj_read_sync() isn't
suitable because object map must be accessed through class methods.

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