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To be free of aliasing due to races, set_memory_* interfaces should follow ordering of reserving, changing memtype to UC/WC, changing memtype back to WB followed by free. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> LKML-Reference: <20090409212708.512280000@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>