Re: [patch] speed up / fix the new generic semaphore code (fix AIM740% regression with 2.6.26-rc1)

From: Alan Cox
Date: Thu May 08 2008 - 19:37:19 EST


> 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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