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include/linux: Remove smp_read_barrier_depends() from comments
smp_read_barrier_depends() doesn't exist any more, so reword the two comments that mention it to refer to "dependency ordering" instead. Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Will Deacon <will@kernel.org>
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@ -155,7 +155,7 @@ static inline bool __ref_is_percpu(struct percpu_ref *ref,
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* between contaminating the pointer value, meaning that
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* READ_ONCE() is required when fetching it.
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*
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* The smp_read_barrier_depends() implied by READ_ONCE() pairs
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* The dependency ordering from the READ_ONCE() pairs
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* with smp_store_release() in __percpu_ref_switch_to_percpu().
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*/
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percpu_ptr = READ_ONCE(ref->percpu_count_ptr);
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@ -107,7 +107,7 @@ static inline int __ptr_ring_produce(struct ptr_ring *r, void *ptr)
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return -ENOSPC;
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/* Make sure the pointer we are storing points to a valid data. */
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/* Pairs with smp_read_barrier_depends in __ptr_ring_consume. */
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/* Pairs with the dependency ordering in __ptr_ring_consume. */
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smp_wmb();
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WRITE_ONCE(r->queue[r->producer++], ptr);
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