rcutorture: Move to dynamic initialization of rcu_fwds (7beba0c0) · Commits · 戴 / test

In order to add multiple call_rcu() forward-progress kthreads, it will be necessary to dynamically allocate and initialize. This commit therefore moves the initialization from compile time to instead immediately precede thread-creation time. Signed-off-by:

Paul E. McKenney <paulmck@kernel.org>

kernel/rcu/rcutorture.c

+3 −5

Original line number	Diff line number	Diff line
		@@ -1686,11 +1686,7 @@ struct rcu_fwd {
		unsigned long rcu_launder_gp_seq_start;
		};

		struct rcu_fwd rcu_fwds = {
		.rcu_fwd_lock = __SPIN_LOCK_UNLOCKED(rcu_fwds.rcu_fwd_lock),
		.rcu_fwd_cb_tail = &rcu_fwds.rcu_fwd_cb_head,
		};

		struct rcu_fwd rcu_fwds;
		bool rcu_fwd_emergency_stop;

		static void rcu_torture_fwd_cb_hist(struct rcu_fwd *rfp)
		@@ -2026,6 +2022,8 @@ static int __init rcu_torture_fwd_prog_init(void)
		WARN_ON(1); /* Make sure rcutorture notices conflict. */
		return 0;
		}
		spin_lock_init(&rcu_fwds.rcu_fwd_lock);
		rcu_fwds.rcu_fwd_cb_tail = &rcu_fwds.rcu_fwd_cb_head;
		if (fwd_progress_holdoff <= 0)
		fwd_progress_holdoff = 1;
		if (fwd_progress_div <= 0)

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