Move the deep check back into the loop. There are ways that even though

Move the deep check back into the loop. There are ways that even though
we're deep the code will SSTOP and sleep and then on wakeup we need to
recheck the deep conditions.
Issue analyzed and OK by mpi@

Reported-by: syzbot+f7634539e73108238c2a@syzkaller.appspotmail.com