linux-kernel - Re: [PATCH 4.14 1/4] powerpc/mm/slice: Remove intermediate bitmap copy

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Message-ID: <87r2oof6qu.fsf@concordia.ellerman.id.au>
Date:   Wed, 14 Mar 2018 00:24:41 +1100
From:   Michael Ellerman <mpe@...erman.id.au>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        christophe leroy <christophe.leroy@....fr>
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org
Subject: Re: [PATCH 4.14 1/4] powerpc/mm/slice: Remove intermediate bitmap copy

Greg Kroah-Hartman <gregkh@...uxfoundation.org> writes:
> On Sat, Mar 10, 2018 at 05:14:22PM +0100, christophe leroy wrote:
>> Le 10/03/2018 à 15:52, Greg Kroah-Hartman a écrit :
>> > On Sat, Mar 10, 2018 at 08:27:54AM +0100, christophe leroy wrote:
>> > > Le 10/03/2018 à 01:10, Greg Kroah-Hartman a écrit :
>> > > > On Fri, Mar 09, 2018 at 04:48:59PM +0100, Christophe Leroy wrote:
>> > > > > Upstream 326691ad4f179e6edc7eb1271e618dd673e4736d
>> > > > 
>> > > > There is no such git commit id in Linus's tree :(
>> > > > 
>> > > > Please fix up and resend the series.
>> > > 
>> > > I checked again, it is there
>> > > 
>> > > https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/arch/powerpc/mm/slice.c?h=next-20180309&id=326691ad4f179e6edc7eb1271e618dd673e4736d
>> > 
>> > That is linux-next, which has everything and the kitchen sink.  It is
>> > not Linus's tree.  Please wait for these things to be merged into
>> > Linus's tree before asking for the to be merged into the stable tree.
>> > That's a requirement.
>> 
>> Oops, sorry, I thought everything on kernel.org was official.
>
> That would be a whole lot of "official" :)
>
> Please read:
>     https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
> for what the rules are here, if you haven't already.
>
>> Once it is in, do I resend the patches or do I just ping you ?
>
> You would need to resend the patches (if they need backporting
> manually), or just send a list of the git commit ids that are needed to
> be applied (usually easier.)
>
> Also, why were these patches not tagged with the stable tag to start
> with?  That way they would be automatically included in the stable tree
> when they hit Linus's tree.

Because they're fairly large and invasive and not well tested on other
platforms, so the maintainer is not comfortable with them going straight
to stable :)

Once they've had some testing in Linus' tree at least, then we'll ask
for a backport if there's no issues.

Sorry for the confusion.

cheers