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(parent: 6120b72) | patch
rcu: Mark sync_sched_exp_online_cleanup() ->cpu_no_qs.b.exp load
authorPaul E. McKenney <paulmck@kernel.org>
Tue, 28 Sep 2021 18:06:35 +0000 (11:06 -0700)
committerPaul E. McKenney <paulmck@kernel.org>
Wed, 8 Dec 2021 00:22:21 +0000 (16:22 -0800)
commit5401cc5264fff75aea10cf44b380b265d18d17ba
tree25ba05c2ec986e30b9b574b72daefd1103818813tree | snapshot
parent6120b72e25e195b6fa15b0a674479a38166c392acommit | diff
rcu: Mark sync_sched_exp_online_cleanup() ->cpu_no_qs.b.exp load

The sync_sched_exp_online_cleanup() is called from rcutree_online_cpu(),
which can be invoked with interrupts enabled.  This means that
the ->cpu_no_qs.b.exp field is subject to data races from the
rcu_exp_handler() IPI handler, so this commit marks the load from
that field.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
kernel/rcu/tree_exp.h diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git