Due to speculative reads we can't guarantee that all
fibers started by storage_proxy::query will be finished
by the time the method returns a result.
We need to make sure that no parameter passed to this
method ever changes.
Signed-off-by: Piotr Jastrzebski <piotr@scylladb.com>
Message-Id: <31952e323e599905814b7f378aafdf779f7072b8.1471005642.git.piotr@scylladb.com>
(cherry picked from commit f212a6cfcb)
[tgrabiec: resolved trivial conflict]
ec51c8e1b8