Re: [patch 3/7] epoll keyed wakeups - introduce key-aware wakeupmacros

From: Linus Torvalds
Date: Fri Jan 30 2009 - 22:57:57 EST

On Sat, 31 Jan 2009, Ingo Molnar wrote:
> Would be nice to see the kernel image size increase due to this change
> (which gives a good measure about how much of an issue this is).

Ingo, I don't think you have looked at that header file for a while.

It's already doing that, Davide just changed the names a bit:

#define wake_up_interruptible(x) __wake_up(x, TASK_INTERRUPTIBLE, 1, NULL)

and the extra parameter is already there in the caller.

(Yeah, Davide did add it to __wake_up_locked and __wake_up_sync, but those
are really not the common cases).

Sure, we can change those #define's to be actual functions (and perhaps
not export the low-level __wake_up() functions at all), since it's true
that it would probably shrink the kernel size, but that is really a
totally independent issue from the whole epoll wakeups thing.

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