Re: devfs: BKL *not* taken while opening devices

Martin J. Bligh
2002-04-30T17:27:55Z

>> I like the idea. But, while we're at it, does anyone have a good enough
>> grasp of locking the the TTY layer that we can start peeling some of the
>> BKL out of there? Somebody was doing tests over a serial console here
>> and the lockmeter data showed horrible BKL contention and hold times.
>
> I really really doubt that fixing contention will make serial ports go
> faster... it'll just move to another lock since I suspect we're
> just waiting for hardware

No, but it might make other things who are waiting for the BKL go faster.

M.