linux/net/ceph/debugfs.c, branch v4.6

libceph: revamp subs code, switch to SUBSCRIBE2 protocol

2016-03-25T17:51:38Z

It is currently hard-coded in the mon_client that mdsmap and monmap subs are continuous, while osdmap sub is always "onetime". To better handle full clusters/pools in the osd_client, we need to be able to issue continuous osdmap subs. Revamp subs code to allow us to specify for each sub whether it should be continuous or not. Although not strictly required for the above, switch to SUBSCRIBE2 protocol while at it, eliminating the ambiguity between a request for "every map since X" and a request for "just the latest" when we don't have a map yet (i.e. have epoch 0). SUBSCRIBE2 feature bit is now required - it's been supported since pre-argonaut (2010). Move "got mdsmap" call to the end of ceph_mdsc_handle_map() - calling in before we validate the epoch and successfully install the new map can mess up mon_client sub state. Signed-off-by: Ilya Dryomov

libceph: expose client options through debugfs

2015-04-20T15:55:39Z

Add a client_options attribute for showing libceph options. Signed-off-by: Ilya Dryomov

libceph: nuke pool op infrastructure

2015-02-19T10:31:37Z

On Mon, Dec 22, 2014 at 5:35 PM, Sage Weil wrote: > On Mon, 22 Dec 2014, Ilya Dryomov wrote: >> Actually, pool op stuff has been unused for over two years - looks like >> it was added for rbd create_snap and that got ripped out in 2012. It's >> unlikely we'd ever need to manage pools or snaps from the kernel client >> so I think it makes sense to nuke it. Sage? > > Yep! Signed-off-by: Ilya Dryomov

libceph: separate multiple ops with commas in debugfs output

2014-10-14T19:57:03Z

For requests with multiple ops, separate ops with commas instead of \t, which is a field separator here. Signed-off-by: Ilya Dryomov Reviewed-by: Sage Weil

libceph: mon_get_version request infrastructure

2014-06-06T01:29:57Z

Add support for mon_get_version requests to libceph. This reuses much of the ceph_mon_generic_request infrastructure, with one exception. Older OSDs don't set mon_get_version reply hdr->tid even if the original request had a non-zero tid, which makes it impossible to lookup ceph_mon_generic_request contexts by tid in get_generic_reply() for such replies. As a workaround, we allocate a reply message on the reply path. This can probably interfere with revoke, but I don't see a better way. Signed-off-by: Ilya Dryomov Reviewed-by: Sage Weil

libceph: recognize poolop requests in debugfs

2014-06-06T01:29:56Z

Recognize poolop requests in debugfs monc dump, fix prink format specifiers - tid is unsigned. Signed-off-by: Ilya Dryomov Reviewed-by: Sage Weil

libceph: dump pool {read,write}_tier to debugfs

2014-04-05T04:08:29Z

Dump pool {read,write}_tier to debugfs. While at it, fixup printk type specifiers and remove the unnecessary cast to unsigned long long. Signed-off-by: Ilya Dryomov

libceph: primary_affinity infrastructure

2014-04-05T04:08:02Z

Add primary_affinity infrastructure. primary_affinity values are stored in an max_osd-sized array, hanging off ceph_osdmap, similar to a osd_weight array. Introduce {get,set}_primary_affinity() helpers, primarily to return CEPH_OSD_DEFAULT_PRIMARY_AFFINITY when no affinity has been set and to abstract out osd_primary_affinity array allocation and initialization. Signed-off-by: Ilya Dryomov Reviewed-by: Alex Elder

libceph: primary_temp infrastructure

2014-04-05T04:07:58Z

Add primary_temp mappings infrastructure. struct ceph_pg_mapping is overloaded, primary_temp mappings are stored in an rb-tree, rooted at ceph_osdmap, in a manner similar to pg_temp mappings. Dump primary_temp mappings to /sys/kernel/debug/ceph//osdmap, one 'primary_temp ' per line, e.g: primary_temp 2.6 4 Signed-off-by: Ilya Dryomov Reviewed-by: Alex Elder

libceph: generalize ceph_pg_mapping

2014-04-05T04:07:57Z

In preparation for adding support for primary_temp mappings, generalize struct ceph_pg_mapping so it can hold mappings other than pg_temp. Signed-off-by: Ilya Dryomov Reviewed-by: Alex Elder