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SubjectRe: [announce] "kill the Big Kernel Lock (BKL)" tree
> > So you just stick unlock_kernel()/lock_kernel() around the call
> > to TTY (or similar to the entry points)
> >
> ... assuming that the ISDN code doesn't assume lock continuity across
> the TTY call.

And procfs and between the tty and the net config code and ...

Keeping the BKL just in legacy places doesn't work. A counting mutex (ie
one you can self multi-lock) might be very useful to fix some of these
however as once we push it down to the point of being a driver specific
lock we can just give it a driver mutex

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