Hey, again. On Mon, Oct 31, 2011 at 04:30:59PM -0700, Tejun Heo wrote: > I can't remember one off the top of my head but I'm pretty sure there > at least are few which expect tight inter-locking between sleeps and > wakeups. I'll look for examples and post reply. ISTR them being > kernel threads so this might not apply directly but it's still a > dangerous game to play. Hmm... I couldn't find KILLABLE used like that but here are two UNINTERRUPTIBLE sleep examples. * kthread_start() depends on the fact that a kthread won't be woken up from UNINTERRUPTIBLE sleep spuriously. * jfs_flush_journal() doesn't check whether the wakeup was spurious after waiting if !tblkGC_COMMITTED. Maybe we can re-define KILLABLE as killable && freezable but IMHO that requires pretty strong rationales. If at all possible, let's not diddle with that if it can be worked around some other way. Thank you. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-cifs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
