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The purpose of the "busted" torture type is to test rcutorture code paths used only when a too-short grace period is detected. Currently, "busted" only uses normal rcu_read_lock()-style readers, which fails to exercise much of the "Failure/close-call rcutorture reader segments" functionality. This commit therefore sets the .extendables field of rcu_busted_ops to RCUTORTURE_MAX_EXTEND in order to more fully exercise the reporting. Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Cc: Frederic Weisbecker <frederic@kernel.org> Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>