[Xen-devel] Transaction mapping in xenstored

[John Levon <levon@xxxxxxxxxxxxxxxxx>]

(Sorry, lost Keir's mail).

I'm unclear on why we have to have the mapping part of solving the
xendev problem. Can't we just allocate a transaction as usual if we see
an ID without a transaction existing, mark it as pre-fail, and when we
see the transaction end, discard the copy as if it had raced?

Surely the ID lookup is guaranteed to fail in the circumstances we care
about (restore, xenstored restart)?

regards
john

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