rbd: a few small cleanups
Some minor cleanups in "drivers/block/rbd.c: - Use the more meaningful "RBD_MAX_OBJ_NAME_LEN" in place if "96" in the definition of RBD_MAX_MD_NAME_LEN. - Use DEFINE_SPINLOCK() to define and initialize node_lock. - Drop a needless (char *) cast in parse_rbd_opts_token(). - Make a few minor formatting changes. Signed-off-by: NAlex Elder <elder@dreamhost.com> Signed-off-by: NSage Weil <sage@newdream.net>
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