From: Frederic Weisbecker <frederic@kernel.org>
To: "Paul E . McKenney" <paulmck@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
Frederic Weisbecker <frederic@kernel.org>,
Uladzislau Rezki <urezki@gmail.com>,
Boqun Feng <boqun.feng@gmail.com>,
Lai Jiangshan <jiangshanlai@gmail.com>,
Neeraj Upadhyay <neeraju@codeaurora.org>,
Josh Triplett <josh@joshtriplett.org>,
Joel Fernandes <joel@joelfernandes.org>
Subject: [PATCH 1/3] srcu: Remove superfluous ssp initialization on deferred work queue
Date: Fri, 2 Apr 2021 01:47:02 +0200 [thread overview]
Message-ID: <20210401234704.125498-2-frederic@kernel.org> (raw)
In-Reply-To: <20210401234704.125498-1-frederic@kernel.org>
When an ssp has already started a grace period and queued an early work
to flush after SRCU workqueues are created, we expect the ssp to be
properly initialized already. So we can skip this step at this stage.
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Neeraj Upadhyay <neeraju@codeaurora.org>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Uladzislau Rezki <urezki@gmail.com>
---
kernel/rcu/srcutree.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/kernel/rcu/srcutree.c b/kernel/rcu/srcutree.c
index 036ff5499ad5..7197156418e4 100644
--- a/kernel/rcu/srcutree.c
+++ b/kernel/rcu/srcutree.c
@@ -1396,7 +1396,6 @@ void __init srcu_init(void)
while (!list_empty(&srcu_boot_list)) {
ssp = list_first_entry(&srcu_boot_list, struct srcu_struct,
work.work.entry);
- check_init_srcu_struct(ssp);
list_del_init(&ssp->work.work.entry);
queue_work(rcu_gp_wq, &ssp->work.work);
}
--
2.25.1
next prev parent reply other threads:[~2021-04-01 23:47 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-01 23:47 [PATCH 0/3] srcu: Fix boot stall Frederic Weisbecker
2021-04-01 23:47 ` Frederic Weisbecker [this message]
2021-04-02 0:48 ` [PATCH 1/3] srcu: Remove superfluous ssp initialization on deferred work queue Paul E. McKenney
2021-04-02 0:58 ` Frederic Weisbecker
2021-04-02 1:19 ` Paul E. McKenney
2021-04-02 1:01 ` Paul E. McKenney
2021-04-01 23:47 ` [PATCH 2/3] srcu: Remove superfluous sdp->srcu_lock_count zero filling Frederic Weisbecker
2021-04-02 0:58 ` Paul E. McKenney
2021-04-01 23:47 ` [PATCH 3/3] srcu: Fix broken node geometry after early ssp init Frederic Weisbecker
2021-04-02 1:12 ` Paul E. McKenney
2021-04-02 10:02 ` Frederic Weisbecker
2021-04-02 15:03 ` Paul E. McKenney
2021-04-02 20:50 ` Frederic Weisbecker
2021-04-02 22:12 ` Paul E. McKenney
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