linux-kernel - Re: [RFC] new -stable tag variant, Git workflow question

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Message-ID: <4AF98C36.9040405@s5r6.in-berlin.de>
Date:	Tue, 10 Nov 2009 16:52:22 +0100
From:	Stefan Richter <stefanr@...6.in-berlin.de>
To:	James Bottomley <James.Bottomley@...senPartnership.com>
CC:	Greg KH <gregkh@...e.de>, Ingo Molnar <mingo@...e.hu>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Chris Wright <chrisw@...s-sol.org>,
	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [RFC] new -stable tag variant, Git workflow question

James Bottomley wrote:
[...]
>> On Tue, Nov 10, 2009 at 04:48:31AM +0100, Ingo Molnar wrote:
>> > FYI, today i committed a scheduler performance fix that has a number of 
>> > commit prerequisites for -stable integration. Those commits are not 
>> > marked -stable.
[...]
>> > we can move this into the Git commit space too, and minimize the 
>> > work for the -stable team, via a new -stable tag variant.
[...]
> The question is, how important is this?
> 
> One of the assumptions behind the current setup is that I assume
> backports are independent (so the order of transmission doesn't matter
> that much).  This isn't always true, but the exceptions tend to get
> handled manually.  Part of what the above is requesting is an
> implementation that starts to care about ordering.

More importantly, isn't this against the character of the -stable kernel
branches as _safe and simple_ hotfix branches?

If a fix has a number of prerequisites which ar not -stable fixes
themselves, then it is more than a hint that this fix is not really well
suited for -stable.
-- 
Stefan Richter
-=====-==--= =-== -=-=-
http://arcgraph.de/sr/
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