Re: [GIT PULL] percpu for 2.6.31

From: Linus Torvalds
Date: Thu Jun 18 2009 - 17:23:55 EST

On Thu, 18 Jun 2009, Tejun Heo wrote:
> Please pull from percpu-for-linus git tree from:
> git:// for-linus

I'm very unhappy with this kind of crap.

Has it been tested AT ALL? Apparently not.

arch/x86/kernel/cpu/mcheck/mce.c:98: error: multiple storage classes in declaration specifiers
arch/x86/kernel/cpu/mcheck/mce.c:98: error: non-static declaration of ʽper_cpu__mces_seenʼ follows static declaration
arch/x86/kernel/cpu/mcheck/mce.c:98: note: previous declaration of ʽper_cpu__mces_seenʼ was here
.. and tons of other similar errors ..

and it was apparently done on purpose, for no good reason. The bug with
static per-cpu variables is only for some broken architectures.

Even the _documentation_ uses "static DEFINE_PER_CPU(..)" for chissake!

To make matters worse, this whole series was clearly rebased (or applied
from some other queue) just _minutes_ before sending it to me. No wonder
it had zero testing:

- commit:
Date: Thu Jun 18 16:22:05 2009 +0900
- email:
Date: Thu, 18 Jun 2009 17:07:16 +0900

I'm not pulling it. Or rather, I pulled it, ended up doing other work,
noticed the problems, and had to re-do my whole tree because I refuse to
have sh*t like this in the kernel.

And I'm not going to pull trees that get rebased like this with basically
no testing before sending it to me. There's a reason I don't like

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