If an event handler requested an abort, only the inner loop was
guaranteed to be broken out of - the outer loop could continue
if total == batch.
Fix this by poisoning batch to ensure it is different to total.
Signed-off-by: Mark Spender <mspender@solarflare.com>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
4b4b84caf9