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
..
2012-08-01 17:24:53 +00:00
2012-05-24 22:00:48 +00:00
2009-04-15 17:31:22 +00:00
2010-11-11 18:35:28 +00:00
2012-06-13 22:53:56 +00:00
2012-03-28 20:58:30 +00:00