From: Josh Durgin <josh.durgin@inktank.com>
Date: Mon, 7 Apr 2014 23:49:21 +0000 (-0700)
Subject: rbd: use helpers to handle discard for layered images correctly
X-Git-Tag: fixes-against-v3.18-rc2~71^2~19
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d3246fb0da5d70838469c01d5b6b11163b49cd86;p=pandora-kernel.git

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>
---

Reading git-diff-tree failed