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From: Ingo Molnar <mingo@elte.hu>
To: Jiri Slaby <jirislaby@gmail.com>,
	Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>,
	Steven Rostedt <rostedt@goodmis.org>,
	gregkh@suse.de, srostedt <srostedt@redhat.com>,
	a.p.zijlstra@chello.nl, ghaskins@novell.com, stable@kernel.org,
	stable-commits@vger.kernel.org,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: Patch "sched: Give CPU bound RT tasks preference" has been added to the 2.6.32-longterm tree
Date: Wed, 16 Feb 2011 10:22:03 +0100	[thread overview]
Message-ID: <20110216092203.GD18842@elte.hu> (raw)
In-Reply-To: <4D5B90E8.6080605@gmail.com>


[ about -stable merge policy ]

* Jiri Slaby <jirislaby@gmail.com> wrote:

> > We try to concentrate on regression fixes though.
> 
> Hi, I cannot fully agree with this. The question is who are "we" here?

It's the upstream policy and the scheduler tree certainly follows it.

I think i remember Linus having stated it before (cannot find the mail), but it's 
pretty common-sense so easy to reproduce (i've Cc:-ed Linus in case he wants to 
chime in):

   The idea is to treat Linus's tree and -stable as an organic whole: so -stable
   is upstream as well, but with *bug* fixes backported. It's emphatically not a 
   separate "for backporting interesting/important bits" tree.

   And as such whatever a maintainer can send to Linus in -rc's (in particular late
   -rc's) is -stable eligible.

   For the rest of patches: generally not eligible, but with common-sense 
   exceptions.

   "It's a nice patch" or "it will obviously not cause problems" or "this is
   important to us" does not make a patch eligible for -stable.

   Adding a -stable tag to a commit and *not* sending it to Linus for the next -rc
   also makes a patch almost automatically *not* eligible: if it was not important
   enough to have it in the next -rc then it's doubly not eligible for -stable ...

   I think this common-sense rule is easy to follow:

    " If you ever have to ask yourself whether a patch queued up for -stable is 
      really -stable eligible it probably isnt. "

   It's called -stable for a reason.

Thanks,

	Ingo

  reply	other threads:[~2011-02-16  9:22 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <12978046423644@kroah.org>
2011-02-15 23:02 ` Patch "sched: Give CPU bound RT tasks preference" has been added to the 2.6.32-longterm tree Steven Rostedt
2011-02-15 23:32   ` Greg KH
2011-02-16  2:46     ` Mike Galbraith
2011-02-16  2:01   ` Mike Galbraith
2011-02-16  2:03     ` Steven Rostedt
2011-02-16  8:25     ` Ingo Molnar
2011-02-16  8:55       ` Jiri Slaby
2011-02-16  9:22         ` Ingo Molnar [this message]
2011-02-16  9:45         ` Mike Galbraith
2011-02-16 14:29           ` Stefan Richter
2011-02-17  5:05             ` Mike Galbraith
2011-02-17  6:22               ` [stable] " Willy Tarreau
2011-02-17  7:52               ` Stefan Richter
2011-02-17  9:41                 ` Mike Galbraith
2011-02-17 14:28                   ` Stefan Richter

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