Re: [PATCH 2/4] Convert epoll to a bitlock

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On Tue, Feb 03, 2009 at 04:19:31PM -0700, Jonathan Corbet wrote:
>  1) Use i_lock to protect accesses to f_flags.  This would enable some 
>     BKL usage to be removed, but would not fix fasync.

What about just turning f_ep_lock into f_lock and using it?

>  2) Move responsibility for the FASYNC bit into ->fasync(), with
>     fasync_helper() doing it in almost all situations.  The remaining
>     BKL usage would then go away.
> 
>  3) The same optional fasync() return values cleanup.

These two sound like a good thing to do no matter what the final locking
looks like.  I think they should be moved to the front of the patch
series and queued up no matter what.

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