rcu: Use WRITE_ONCE() for assignments to ->next for rculist_nulls

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When the objects managed by rculist_nulls are allocated with
SLAB_TYPESAFE_BY_RCU, old readers may still hold references to an object
even though it is just now being added, which means the modification of
->next is visible to readers.  This patch therefore uses WRITE_ONCE()
for assignments to ->next.

Signed-off-by: Alan Huang <mmpgouride@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org>

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Alan Huang 2023-07-06 10:28:48 +00:00 • committed by Paul E. McKenney

parent 3292ba0229

commit efd04f8a8b

1 changed files with 2 additions and 2 deletions

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include/linux/rculist_nulls.h

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