Hello,
I pushed wip-oid, to get rid of the annoying CEPH_MAX_OID_NAME_LEN
limit on the length of an object name that libceph can work with, which
translated into the limit of ~100 chars on the length of an rbd image
name. The new image name limit is ~4000 chars. (The exact number
depends on how many mon IPs and map options were specified - mons
+ options + image name string must fit into a single page.)
We should define a sensible limit and start enforcing it on rbd
create/clone/etc and on open/rbd map. Limits from the lower layers
4096 - strlen(".rbd") on create for format 1
4096 - strlen("rbd_id.") on create for format 2
~4000 on map
aren't something we want to rely on or support.
Thanks,
Ilya
Ilya Dryomov (6):
libceph: make ceph_osdc_put_request() accept NULL
libceph: grab snapc in ceph_osdc_alloc_request()
libceph: move message allocation out of ceph_osdc_alloc_request()
libceph: change how osd_op_reply message size is calculated
libceph: variable-sized ceph_object_id
rbd: use header_oid instead of header_name
drivers/block/rbd.c | 83 ++++++++++++++-------------
fs/ceph/addr.c | 23 ++++----
fs/ceph/file.c | 9 ++-
fs/ceph/ioctl.c | 2 +-
include/linux/ceph/osd_client.h | 1 +
include/linux/ceph/osdmap.h | 62 ++++++++++++---------
net/ceph/debugfs.c | 2 +-
net/ceph/osd_client.c | 120 ++++++++++++++++++++++------------------
net/ceph/osdmap.c | 93 ++++++++++++++++++++++++++++++-
9 files changed, 266 insertions(+), 129 deletions(-)
--
2.4.3
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