Обсуждение: pgsql: Use "mb" not the nonexistent "rmb" for pg_read_barrier() on Alph

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.

Branch
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REL9_4_STABLE

Details
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http://git.postgresql.org/pg/commitdiff/747ca66977d5539a5ab9e5f33d3ca074fc3fd19b

Modified Files
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src/include/storage/barrier.h |    2 +-
1 file changed, 1 insertion(+), 1 deletion(-)