From: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Date: Sun, 14 Mar 2010 14:27:23 +0000 (-0400)
Subject: urcu-qsbr: document compiler barrier
X-Git-Tag: v0.4.4~8
X-Git-Url: http://git.liburcu.org/?p=urcu.git;a=commitdiff_plain;h=7a5a38f52b8814d0188b74a91cb635bc205df96c;hp=7a5a38f52b8814d0188b74a91cb635bc205df96c

urcu-qsbr: document compiler barrier

This compiler barrier is, at the implementation level, already provided by the
volatile accesses for STORE/LOAD_SHARED. However, given that these primitives
does not provide this guarantee at the high-level (and might use lighter gcc
primitives eventually), we need to add an explicit barrier().

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