Commits
Paul Mundt committed 1c8db713e21
sh: Fix up smp_mb__xxx() memory barriers for SH-4A SMP. In the past these were simply wrapping to barrier() which was sufficient on SH SMP platforms predating SH-4A. Unfortunately due to ll/sc semantics an explicit synco is needed in these cases, which is sorted for us by just switching these over to smp_mb(). smp_mb() also has the benefit of being wrapped to barrier() in the UP and non-SH4A cases, so old behaviour is maintained for those parts. Signed-off-by: Paul Mundt <lethal@linux-sh.org>