rcutorture: Make rcu_fwd_cb_nodelay be a counter

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Back when only one rcutorture kthread could do forward-progress testing,
it was just fine for rcu_fwd_cb_nodelay to be a non-atomic bool.  It was
set at the start of forward-progress testing and cleared at the end.
But now that there are multiple threads, the value can be cleared while
one of the threads is still doing forward-progress testing.  This commit
therefore makes rcu_fwd_cb_nodelay be an atomic counter, replacing the
WRITE_ONCE() operations with atomic_inc() and atomic_dec().

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

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Paul E. McKenney 2021-12-17 12:33:53 -08:00

parent 05b724655b

commit e22ef8df41

1 changed files with 7 additions and 7 deletions

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kernel/rcu/rcutorture.c

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