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rcutorture: Move to dynamic initialization of rcu_fwds

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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>
This commit is contained in:
Paul E. McKenney 2019-11-06 07:49:31 -08:00
parent 6b1b832546
commit 7beba0c06b
1 changed files with 3 additions and 5 deletions
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8
kernel/rcu/rcutorture.c
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@ -1686,11 +1686,7 @@ struct rcu_fwd {
unsigned long rcu_launder_gp_seq_start; unsigned long rcu_launder_gp_seq_start;
}; };
struct rcu_fwd rcu_fwds = { 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,
};
bool rcu_fwd_emergency_stop; bool rcu_fwd_emergency_stop;
static void rcu_torture_fwd_cb_hist(struct rcu_fwd *rfp) 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. */ WARN_ON(1); /* Make sure rcutorture notices conflict. */
return 0; 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) if (fwd_progress_holdoff <= 0)
fwd_progress_holdoff = 1; fwd_progress_holdoff = 1;
if (fwd_progress_div <= 0) if (fwd_progress_div <= 0)