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[Xen-devel] [PATCH] Fix recursive lock p2m lock acquisition in POD code

The POD code can take the p2m lock from inside a lookup.  This causes a
crash if anyone calls gfn_to_mfn* with the p2m lock held, which is quite
a few places.  Make the POD code understand that it may be called with
the lock held, and DTRT about talking or releasing it.

Signed-off-by: Tim Deegan <Tim.Deegan@xxxxxxxxxx>

Attachment: pod-p2m-locking
Description: Text document

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