On Mon, Oct 09, 2017 at 05:22:46PM -0700, Paul E. McKenney wrote: > Now that smp_read_barrier_depends() is implied by READ_ONCE(), adding > READ_ONCE() to assoc_array_ptr_to_leaf() and __assoc_array_ptr_to_meta() > allows the several smp_read_barrier_depends() calls to be removed from > lib/assoc_array.c. This commit makes this change. So arguably this code was broken for not already having READ_ONCE().
