Re: [RFC] add module reference to struct tty_driver

[John Bradford <john@grabjohn.com>]

> > > > Woah!  Hm, this is going to cause lots of problems in drivers that have
> > > > been assuming that the BKL is grabbed during module unload, and during
> > > > open().  Hm, time to just fallback on the argument, "module
> > > > unloading is unsafe" :(
> > > 
> > > Note that its the same in 2.4 as well.  iirc, the BKL was removed from
> > > module loading/unloading sometime in the 2.3 timeline.
> > 
> > Surely no recent code should be making that assumption anyway - the
> > BKL is being removed all over the place.
> 
> The TTY layer isn't "recent code", its "very old code"

Oh, I know, I was just thinking aloud and not making much sense, ( :-)
) - what I really meant was is anybody writing new code without the
near-future BKL changes in mind, and if so, shouldn't it be avoided
now to save work in 2.7?  I.E. is the BKL officially depreciated?

> and (IMO) removing the BKL from the TTY layer is a far from trivial
> matter.
> 
> I believe at this point in the 2.5 cycle, we should not be looking
> to remove the BKL.

I think there were hints in another thread of a TTY layer overhaul in
2.7.

John.