Re: [patch] speed up / fix the new generic semaphore code (fix AIM7 40% regression with 2.6.26-rc1)

[Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>]

>     380  down <= lock_kernel <= tty_release <= __fput <
>     422  down <= lock_kernel <= chrdev_open <= __dentry_open <
> 
> rather than the write routines. But it may be that Ingo was just profiling 
> two different sections, and it's really all of them.

tty release is probably a few months away from getting cured  - I'm
afraid it will almost certainly be the very last user of the BKL in tty
to get fixed as it depends on everything else being sanely locked.
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