/dev/shm may have unsafe permissions. Use /run instead.
Use systemd's tmpfiles.d mechanism to create /run/multipath
early during boot.
For backward compatibilty, make the runtime directory configurable
via the "runtimedir" make variable.
Signed-off-by: Kemeng Shi <shikemeng@huawei.com>
(cherry picked from commit ece61bee4ca9432cc712ea832637d39118074750)
