From 3cb4a687c72bd16c95f514933d68884eacac4e4e Mon Sep 17 00:00:00 2001
From: Alex Elder <elder@inktank.com>
Date: Tue, 26 Jun 2012 12:57:03 -0700
Subject: [PATCH] rbd: pass flags to rbd_req_sync_exec()

In order to allow both read requests and write requests to be
initiated using rbd_req_sync_exec(), add an OSD flags value
which can be passed down to rbd_req_sync_op().  Rename the "data"
and "len" parameters to be more clear that they represent data
that is outbound.

At this point, this function is still only used (and only works) for
write requests.

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