[Xen-devel] [PATCH][UPDATED] cpu barriers moved and x86-64 cpu barriers added

[Jerone Young <jyoung5@xxxxxxxxxx>]

Last patch had build error in blktap that I missed since it is not apart
of the standard build process. Also evidence point to that X86-64 by
default does have CONFIG_UNORDERED_IO on in the Linux kernel default
configuration for x86-64, so since it is really a no op nothing can
really go wrong (Anthony you win this time!). 

This patch moves all cpu barrier definitions to libxc/xc.h and also adds
X86-64 barrier definitions.

Signed-off-by: Jerone Young <jyoung5@xxxxxxxxxx>


Jerone Young
Open Virtualization
IBM Linux Technology Center
jyoung5@xxxxxxxxxx
512-838-1157 (T/L: 678-1157)

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