From: Alex Elder <elder@inktank.com>
Date: Fri, 8 Feb 2013 15:55:49 +0000 (-0600)
Subject: rbd: define image request flags
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~26^2~104
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0c425248e0c6b3ebb64489b178b5412ab164b7f8;p=pandora-kernel.git

rbd: define image request flags

There are several Boolean values we'll be maintaining for image
requests.  Switch from the single write_request field to a
general-purpose flags field, and use one if its bits to represent
the direction of I/O for the image request.  Define helper functions
for setting and testing that flag.

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
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