Test 167 will leave runaway fsstress processes around in case killall is
not installed and thus make all following tests fail. This patch checks
for killall beeing installed and error out otherwise.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Merge of master-melb:xfs-cmds:31171a by kenmcd.
don't run if killall is not installed.
Merge of master-melb:xfs-cmds:28942a by kenmcd.
run a sync after killing all the fsstress processes to ensure
they have all completed before trying to unmount scratch.