rcu: Initialize boost kthread only for boot node prior SMP initialization

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The rcu_spawn_gp_kthread() function is called as an early initcall,
which means that SMP initialization hasn't happened yet and only the
boot CPU is online.  Therefore, create only the boost kthread for the
leaf node of the boot CPU.

Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Cc: Neeraj Upadhyay <quic_neeraju@quicinc.com>
Cc: Uladzislau Rezki <uladzislau.rezki@sony.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

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Frederic Weisbecker 2022-02-16 16:42:07 +01:00 • committed by Paul E. McKenney

parent 2eed973adc

commit 3352911fa9

3 changed files with 4 additions and 18 deletions

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5

kernel/rcu/tree.c

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1

kernel/rcu/tree.h

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16

kernel/rcu/tree_plugin.h

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