linux-kernel - Re: [PATCH 01 of 11] mmu-notifier-core

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Date:	Wed, 7 May 2008 15:11:10 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Andrea Arcangeli <andrea@...ranet.com>
cc:	Andrew Morton <akpm@...ux-foundation.org>, clameter@....com,
	steiner@....com, holt@....com, npiggin@...e.de,
	a.p.zijlstra@...llo.nl, kvm-devel@...ts.sourceforge.net,
	kanojsarcar@...oo.com, rdreier@...co.com,
	swise@...ngridcomputing.com, linux-kernel@...r.kernel.org,
	avi@...ranet.com, linux-mm@...ck.org,
	general@...ts.openfabrics.org, hugh@...itas.com,
	rusty@...tcorp.com.au, aliguori@...ibm.com, chrisw@...hat.com,
	marcelo@...ck.org, dada1@...mosbay.com, paulmck@...ibm.com
Subject: Re: [PATCH 01 of 11] mmu-notifier-core



On Wed, 7 May 2008, Andrea Arcangeli wrote:

> > As far as I can tell, authorship has been destroyed by at least two of the 
> > patches (ie Christoph seems to be the author, but Andrea seems to have 
> > dropped that fact).
> 
> I can't follow this, please be more specific.

The patches were sent to lkml without *any* indication that you weren't 
actually the author.

So if Andrew had merged them, they would have been merged as yours.

> > That "locking" code is also too ugly to live, at least without some 
> > serious arguments for why it has to be done that way. Sorting the locks? 
> > In a vmalloc'ed area?  And calling this something innocuous like 
> > "mm_lock()"? Hell no. 
> 
> That's only invoked in mmu_notifier_register, mm_lock is explicitly
> documented as heavyweight function.

Is that an excuse for UTTER AND TOTAL CRAP?

		Linus
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