Use "mb" not the nonexistent "rmb" for pg_read_barrier() on Alpha.
authorTom Lane
Sat, 29 Aug 2015 20:34:30 +0000 (16:34 -0400)
committerTom Lane
Sat, 29 Aug 2015 20:34:30 +0000 (16:34 -0400)
commit747ca66977d5539a5ab9e5f33d3ca074fc3fd19b
tree7d54be01299f0c19f481d7a0b6c1c85a853dd1f2
parent3da9c060fc775f17e43ae8608b818079a0099516
Use "mb" not the nonexistent "rmb" for pg_read_barrier() on Alpha.

It's only necessary to fix this in 9.4; later versions don't have this
code (because we ripped out Alpha support entirely), while earlier ones
aren't actually using pg_read_barrier() anywhere.

Per rather belated report from Christoph Berg.
src/include/storage/barrier.h