From: Josh Durgin <josh.durgin@inktank.com>
Date: Thu, 13 Jun 2013 02:15:06 +0000 (-0700)
Subject: rbd: use the correct length for format 2 object names
X-Git-Tag: v3.10-rc7~13^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3a96d5cd7bdce45d5dded75c3a62d4fb98050280;p=pandora-kernel.git

rbd: use the correct length for format 2 object names

Format 2 objects use 16 characters for the object name suffix to be
able to express the full 64-bit range of object numbers. Format 1
images only use 12 characters for this. Using 12-character names for
format 2 caused userspace and kernel rbd clients to read differently
named objects, which made an image written by one client look empty to
the other client.

CC: stable@vger.kernel.org  # 3.9+
Reported-by: Chris Dunlop <chris@onthe.net.au>
Signed-off-by: Josh Durgin <josh.durgin@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
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