Re: [RFC,PATCH 0/14] utrace/ptrace [LWN.net]

From:		Pavel Machek <pavel-AT-ucw.cz>
To:		Christoph Hellwig <hch-AT-infradead.org>
Subject:		Re: [RFC,PATCH 0/14] utrace/ptrace
Date:		Sun, 29 Nov 2009 09:59:58 +0100
Cc:		Peter Zijlstra <peterz-AT-infradead.org>, Oleg Nesterov <oleg-AT-redhat.com>, linux-kernel-AT-vger.kernel.org, "Frank Ch. Eigler" <fche-AT-redhat.com>, utrace-devel-AT-redhat.com, Alexey Dobriyan <adobriyan-AT-gmail.com>
Archive-link:		Article, Thread

On Wed 2009-11-25 16:48:18, Christoph Hellwig wrote:
> On Tue, Nov 24, 2009 at 09:01:27PM +0100, Oleg Nesterov wrote:
> > Hello.
> > 
> > This is the new iteration of Roland's utrace patch, this time
> > with "rewrite-ptrace-via-utrace" + cleanups in utrace core.
> > 
> > 1-7 are already in -mm tree, I am sending them to simplify the
> > review.
> > 
> > 8-12 don not change the behaviour, simple preparations.
> > 
> > 13-14 add utrace-ptrace and utrace
> 
> Skipped over it very, very briefly.  One thing I really hate about this
> is that it introduces two ptrace implementation by adding the new one
> without removing the old one.  Given that's it's pretty much too later
> for the 2.6.33 cycle anyway I'd suggest you make sure the remaining
> two major architectures (arm and mips) get converted, and if the
> remaining minor architectures don't manage to get their homework done
> they're left without ptrace.

I don't think introducing regressions to force people to rewrite code
is a good way to go...
								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo...

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