linux-kernel - RE: [RFC PATCH 0/8]: uninline & uninline

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Message-ID: <00ac01c87656$777c02a0$667407e0$@com>
Date:	Sat, 23 Feb 2008 11:58:30 -0800
From:	"Hua Zhong" <hzhong@...il.com>
To:	"'Andrew Morton'" <akpm@...ux-foundation.org>,
	"'Andi Kleen'" <andi@...stfloor.org>
Cc:	'Ilpo Järvinen' <ilpo.jarvinen@...sinki.fi>,
	<netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	"'David Miller'" <davem@...emloft.net>,
	"'Arnaldo Carvalho de Melo'" <acme@...hat.com>
Subject: RE: [RFC PATCH 0/8]: uninline & uninline

> > Is there any reason they couldn't just be merged to mainline?
> >
> > I think it's a useful facility.
> 
> ummm, now why did we made that decision...  I think we decided that
> it's the sort of thing which one person can run once per few months
> and that will deliver its full value.  I can maintain it in -mm and
> we're happy - no need to add it to mainline.  No strong feelings
> either way really.

Apparently nobody has been doing it for a while. :-) Last time I did it it
was around the submission time and I actually patched it into mainline
kernel to do so. Not particularly hard to do, but sitting in mm-only does
make it a bit harder, and there are the vdso problem you just mentioned that
one has to fix for himself if it exists in mainline.

> It does have the downside that the kernel explodes if someone adds
> unlikely or likely to the vdso code and I need to occasionally hunt
> down new additions and revert them in that patch.  That makes it a
> bit of a maintenance burden.

Is it possible to catch this automatically, like, by re-defining
likely/unlikely to the raw form in specific file(s)?

Hua


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