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rcu/nocb: Delete bypass_timer upon nocb_gp wakeup

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A NOCB-gp wake p can safely delete the ->nocb_bypass_timer because
nocb_gp_wait() will recheck again the bypass state and rearm the bypass
timer if necessary.  This commit therefore deletes this timer.

Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Neeraj Upadhyay <neeraju@codeaurora.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Frederic Weisbecker 2021-02-23 01:10:08 +01:00 committed by Paul E. McKenney
parent b6e2c4ed35
commit 3b2348e2fd
1 changed files with 2 additions and 0 deletions
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2
kernel/rcu/tree_plugin.h
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@ -1701,6 +1701,8 @@ static bool __wake_nocb_gp(struct rcu_data *rdp_gp,
del_timer(&rdp_gp->nocb_timer);
}
del_timer(&rdp_gp->nocb_bypass_timer);
if (force || READ_ONCE(rdp_gp->nocb_gp_sleep)) {
WRITE_ONCE(rdp_gp->nocb_gp_sleep, false);
needwake = true;