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3 Commits

Author SHA1 Message Date
Ilya Dryomov
22e8bd51bb rbd: support for object-map and fast-diff 
Speed up reads, discards and zeroouts through RBD_OBJ_FLAG_MAY_EXIST
and RBD_OBJ_FLAG_NOOP_FOR_NONEXISTENT based on object map.

Invalid object maps are not trusted, but still updated.  Note that we
never iterate, resize or invalidate object maps.  If object-map feature
is enabled but object map fails to load, we just fail the requester
(either "rbd map" or I/O, by way of post-acquire action).

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
 2019-07-08 14:01:45 +02:00
Ilya Dryomov
08c1ac508b libceph, ceph: move ceph_calc_file_object_mapping() to striper.c 
ceph_calc_file_object_mapping() has nothing to do with osdmaps.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
 2018-04-02 10:12:43 +02:00
Ilya Dryomov
ed0811d2d2 libceph: striping framework implementation 
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
 2018-04-02 10:12:42 +02:00