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

From: Andy Lutomirski
Date: Mon Dec 22 2014 - 14:17:22 EST


On Sun, Dec 14, 2014 at 10:17 AM, Paul E. McKenney
<paulmck@xxxxxxxxxxxxxxxxxx> wrote:
> 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@xxxxxxxxxxxxxxxxxx> 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@xxxxxxxxxxxxxxxxxx> wrote:
>> >> > On Sat, Dec 13, 2014 at 11:26:36PM -0800, Andy Lutomirski wrote:
>> >> >> On Dec 13, 2014 10:58 PM, "Stephen Rothwell" <sfr@xxxxxxxxxxxxxxxx> 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. ;-)
>

I'm re-adding the branch, since 3.19-rc1 is out, the change appears to
still exist as-is in your tree, and it merges cleanly and builds in
the latest -next for me. Let me know if this will be problematic for
any reason.

Thanks,
Andy

> Thanx, Paul
>



--
Andy Lutomirski
AMA Capital Management, LLC
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