tree 1770ff1c699df0469a02d5cabd7060afa810b9e2
parent 3b434a2aff38029ea053ce6c8fced53b2d01f7f0
author Josh Durgin <josh.durgin@inktank.com> 1396914561 -0700
committer Ilya Dryomov <idryomov@redhat.com> 1413306216 +0400

rbd: use helpers to handle discard for layered images correctly

Only allocate two osd ops for discard requests, since the
preallocation hint is only added for regular writes.  Use
rbd_img_obj_request_fill() to recreate the original write or discard
osd operations, isolating that logic to one place, and change the
assert in rbd_osd_req_create_copyup() to accept discard requests as
well.

Signed-off-by: Josh Durgin <josh.durgin@inktank.com>