Attilio Rao 3a4730256a Add an unified macro to deny ability from the compiler to reorder
instruction loads/stores at its will.
The macro __compiler_membar() is currently supported for both gcc and
clang, but kernel compilation will fail otherwise.

Reviewed by:	bde, kib
Discussed with:	dim, theraven
MFC after:	2 weeks
2012-10-09 14:32:30 +00:00
..
2010-07-15 01:58:20 +00:00
2012-01-13 23:31:36 +00:00
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2012-05-24 22:00:48 +00:00
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2011-10-18 07:29:21 +00:00
2012-03-28 20:58:30 +00:00
2011-05-13 16:42:05 +00:00