On Sat, Oct 10, 2015 at 04:00:52PM -0400, Peter Hurley wrote:
>
> Note: The ASYNC_CLOSING flag state is still maintained since several
> bitrotting drivers use it for (dubious) other purposes.
I think we should drop it, it's pointless and no one ever actually does
anything with it.
thanks,
greg
Since at least before 2.6.30, tty drivers that do not drop the tty lock
while closing cannot observe ASYNC_CLOSING set while holding the
tty lock; this includes the tty driver's open() and hangup() methods,
since the tty core calls these methods holding the tty lock.
For these drivers, waiting for
