From 22001f619f29ddf66582d834223dcff4c0b74595 Mon Sep 17 00:00:00 2001
From: Josh Durgin <josh.durgin@inktank.com>
Date: Mon, 30 Sep 2013 20:10:04 -0700
Subject: [PATCH] rbd: only set disk to read-only once

rbd_open(), called every time the device is opened, calls
set_device_ro().  There's no reason to set the device read-only or
read-write every time it is opened. Just do this once during device
setup, using set_disk_ro() instead because the struct block_device
isn't available to us there.

Signed-off-by: Josh Durgin <josh.durgin@inktank.com>
Reviewed-by: Alex Elder <elder@linaro.org>
---
Reading git-format-patch failed