From fca270653909404112ea5f6eed274ed5272d5252 Mon Sep 17 00:00:00 2001
From: Ilya Dryomov <ilya.dryomov@inktank.com>
Date: Mon, 16 Dec 2013 18:02:40 +0200
Subject: [PATCH] rbd: introduce rbd_dev_header_unwatch_sync() and switch to it

Rename rbd_dev_header_watch_sync() to __rbd_dev_header_watch_sync() and
introduce two helpers: rbd_dev_header_{,un}watch_sync() to make it more
clear what is going on.

Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
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