rcu: Mark rcu_state.ncpus to detect concurrent writes

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The rcu_state structure's ncpus field is only to be modified by the
CPU-hotplug CPU-online code path, which is single-threaded.  This
commit therefore enlists KCSAN's help in enforcing this restriction.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

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Paul E. McKenney 2020-02-10 05:29:58 -08:00

parent 4f58820fd7

commit 2f08469563

1 changed files with 1 additions and 0 deletions

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kernel/rcu/tree.c

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