linux-kernel - Re: linux-next: question about the luto-misc tree

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Message-ID: <20141214181744.GF5310@linux.vnet.ibm.com>
Date:	Sun, 14 Dec 2014 10:17:44 -0800
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Andy Lutomirski <luto@...capital.net>
Cc:	Stephen Rothwell <sfr@...b.auug.org.au>,
	"linux-next@...r.kernel.org" <linux-next@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: linux-next: question about the luto-misc tree

On Sun, Dec 14, 2014 at 09:41:04AM -0800, Andy Lutomirski wrote:
> On Sun, Dec 14, 2014 at 9:37 AM, Paul E. McKenney
> <paulmck@...ux.vnet.ibm.com> wrote:
> > On Sun, Dec 14, 2014 at 08:29:33AM -0800, Andy Lutomirski wrote:
> >> On Sun, Dec 14, 2014 at 4:03 AM, Paul E. McKenney
> >> <paulmck@...ux.vnet.ibm.com> wrote:
> >> > On Sat, Dec 13, 2014 at 11:26:36PM -0800, Andy Lutomirski wrote:
> >> >> On Dec 13, 2014 10:58 PM, "Stephen Rothwell" <sfr@...b.auug.org.au> wrote:
> >> >> >
> >> >> > Hi Andy,
> >> >> >
> >> >> > The luto-misc tree seems to have a whole series of commits in it that
> >> >> > have just bee removed from the rcu tree ...  You really have to be very
> >> >> > careful if you base your work on a tree that is regularly rebased.
> >> >>
> >> >> Hmm.  They were there a couple days ago.  Paul, what should I do about
> >> >> this?  I only need the one NMI nesting change for the stuff in
> >> >> luto/next.
> >> >>
> >> >> > I also wonder if the other commits in that tree are destined for
> >> >> > v3.19?  If they are for v3.20, then they should not be in linux-next
> >> >> > until after v3.19-rc1 has been released.
> >> >>
> >> >> They're for 3.20.  I'll drop the whole series from the next branch for now.
> >> >
> >> > You mean the NMI nesting change below, correct?  One approach would be
> >> > to include the branch rcu/dev from my -rcu tree.  Would that work for you?
> >>
> >> That would work.
> >>
> >> The problem is that, if you rebase again and I don't notice, then
> >> it'll generate a pile of conflicts.  Is there someway that I can flag
> >> my next tree as depending on a certain commi existing in another tree
> >> so that the scripts that generate linux-next will ignore it if the
> >> base commit goes away?
> >
> > The commits would still stick around because I keep date-encoded branches.
> > But just to make things easier, I created a andy.2014.11.21a branch that
> > points to the current commit and will stay there.  Please let me know how
> > it goes.
> 
> That's the same commit that's in rcu/dev and was in luto/next, I
> think.  Is the issue just that you pulled the whole thing from
> whichever linux-rcu branch is in -next, but I still had it, so it
> caused a problem?

I still have the commit.  All I did was move the rcu/next branch that
Stephen pulls from.

> In any case, I'll wait for 3.19-rc1 before re-adding any of this.

That does sound simpler, as I will make this commit available to -next
at that point.  ;-)

							Thanx, Paul

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