Re: tty: use the new 'flush_delayed_work()' helper to do ldiscflush

[Alan Cox]

>     This way all flush_to_ldisc work is always done through the workqueues,
>     and we thus have a single point of serialization.
>     
>     Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>

What impact is this going to have on hardware that uses tty->low_latency
correctly and already queues stuff from its own processing work queue.
When we got double queueing before by accident we made some firmware
loading and similar tools run about half speed and completely hosed the
use of 8250 uart for MIDI work ?

Alan
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