rcu: Fix spelling mistake "greate"->"great"

This commit fixes a spelling mistake in file tree_exp.h.

Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
This commit is contained in:
Mukesh Ojha 2019-07-29 13:25:57 +05:30 • committed by Paul E. McKenney
commit 511b44f759