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Multicalls are expected to never fail, and the normal response to a
failed multicall is very terse. In the interests of better
debuggability, add some more verbose output. It may be worth turning
this off once it all seems more tested.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
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This adds a mechanism to register a callback function to be called once
a batch of hypercalls has been issued. This is typically used to unlock
things which must remain locked until the hypercall has taken place.
[ Stable folks: pre-req for 2.6.23 bugfix "xen: deal with stale cr3
values when unpinning pagetables" ]
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Stable Kernel <stable@kernel.org>
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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