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xen/gntdev: prevent unsynchronized accesses to the map entry

Description

xen/gntdev: prevent unsynchronized accesses to the map entry

vm_map_lookup_done should only be called when the gntdev has finished poking at
the entry.

Reported by: alc
Reviewed by: alc
MFC after: 1 week
Sponsored by: Citrix Systems R&D

Details

Provenance
roygerAuthored on
Reviewer
alc
Parents
rS314339: Document that the size of AH ICV for HMAC-SHA2-NNN should be half of
Branches
Unknown
Tags
Unknown