From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Mon, 19 Apr 2021 15:21:52 +0000 (-0400)
Subject: Fix: use __atomic_load() rather than atomic load explicit
X-Git-Tag: v0.13.0~13
X-Git-Url: http://git.liburcu.org/?a=commitdiff_plain;h=3abcdbd14d1b9291f06a4a4bbca313fcfbe5452b;hp=3abcdbd14d1b9291f06a4a4bbca313fcfbe5452b;p=urcu.git

Fix: use __atomic_load() rather than atomic load explicit

Use __atomic_load (gcc extension) rather than atomic load explict
(C11/C++11) for rcu_dereference because it does not require the input
type to be _Atomic. This fixes a regression with clang introduced by
commit 380f4b19052 ("Fix: use atomic load memory_order_consume for
rcu_dereference on C11/C++11").

Note that the cmm_smp_read_barrier_depends is removed when using
__ATOMIC_CONSUME because their memory ordering effect is redundant.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: Icd5f6040e0bd2167844a8d856ae5475ceef17123
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