[PATCH 12/18] include/linux: Remove smp_read_barrier_depends() from comments
From: Will Deacon <will@kernel.org>
Date: 2020-06-30 17:38:41
Also in:
linux-alpha, lkml, virtualization
Subsystem:
per-cpu memory allocator, the rest · Maintainers:
Dennis Zhou, Tejun Heo, Christoph Lameter, Linus Torvalds
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: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Will Deacon <will@kernel.org> --- include/linux/percpu-refcount.h | 2 +- include/linux/ptr_ring.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/percpu-refcount.h b/include/linux/percpu-refcount.h
index 22d9d183950d..87d8a38bdea1 100644
--- a/include/linux/percpu-refcount.h
+++ b/include/linux/percpu-refcount.h@@ -155,7 +155,7 @@ static inline bool __ref_is_percpu(struct percpu_ref *ref, * between contaminating the pointer value, meaning that * READ_ONCE() is required when fetching it. * - * The smp_read_barrier_depends() implied by READ_ONCE() pairs + * The dependency ordering from the READ_ONCE() pairs * with smp_store_release() in __percpu_ref_switch_to_percpu(). */ percpu_ptr = READ_ONCE(ref->percpu_count_ptr);
diff --git a/include/linux/ptr_ring.h b/include/linux/ptr_ring.h
index 417db0a79a62..808f9d3ee546 100644
--- a/include/linux/ptr_ring.h
+++ b/include/linux/ptr_ring.h@@ -107,7 +107,7 @@ static inline int __ptr_ring_produce(struct ptr_ring *r, void *ptr) return -ENOSPC; /* Make sure the pointer we are storing points to a valid data. */ - /* Pairs with smp_read_barrier_depends in __ptr_ring_consume. */ + /* Pairs with the dependency ordering in __ptr_ring_consume. */ smp_wmb(); WRITE_ONCE(r->queue[r->producer++], ptr);
--
2.27.0.212.ge8ba1cc988-goog
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