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authorPaul E. McKenney <paulmck@kernel.org>2019-11-06 16:49:31 +0100
committerPaul E. McKenney <paulmck@kernel.org>2019-12-09 22:00:28 +0100
commit7beba0c06b588c725962bcc0273a489d46e81ccf (patch)
treec7823e00ed0926b51a4c1a37dfbe33e4fc4af665 /kernel/rcu/rcutorture.c
parentrcutorture: Thread rcu_fwd pointer through forward-progress functions (diff)
downloadlinux-7beba0c06b588c725962bcc0273a489d46e81ccf.tar.xz
linux-7beba0c06b588c725962bcc0273a489d46e81ccf.zip
rcutorture: Move to dynamic initialization of rcu_fwds
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>
Diffstat (limited to 'kernel/rcu/rcutorture.c')
-rw-r--r--kernel/rcu/rcutorture.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index cc88ce910a6d..6f540fed942c 100644
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcutorture.c
@@ -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)