Re: [Announce] BKL shifting into drivers and filesystems - beware

[Manfred Spraul]

David Woodhouse wrote:
> 
> Can we now remove sleep_on() completely, or at least apply something like
> the following:
> 

That won't work.

1) lock_depth is only updated on SMP.
2) the global cli spinlock is the second valid lock for sleep_on()
users.

And sleep_on a very good litmus test for SMP awareness: grep for
sleep_on, and if you find it it's a good sign that the driver is not SMP
aware ;)

--
        Manfred