Re: [PATCH for-4.15] tools/xenstored: liveupdate: Properly check long transaction

[Ian Jackson <iwj@xxxxxxxxxxxxxx>]

Julien Grall writes ("[PATCH for-4.15] tools/xenstored: liveupdate: Properly 
check long transaction"):
> From: Julien Grall <jgrall@xxxxxxxxxx>
> 
> As XenStored is single-threaded, conn->ta_start_time will always be
> smaller than now. As we substract the latter from the former, it means
> a transaction will never be considered long running.
> 
> Invert the two operands of the substraction in both lu_reject_reason()
> and lu_check_allowed(). In addition to that, the former also needs to
> check that conn->ta_start_time is not 0 (i.e the transaction is not
> active).
> 
> Take the opportunity to document the return condition of
> lu_check_allowed().

AFAICT this only affects live updated which is not security-supported
in 4.15 and which won't block our tests.  So:

Release-Acked-by: Ian Jackson <iwj@xxxxxxxxxxxxxx>

Ian.