Re: [KORG] Re: kernel.org lies about latest -mm kernel

From: Nigel Cunningham
Date: Sat Jan 06 2007 - 23:51:46 EST


Hi.

On Sat, 2007-01-06 at 23:10 -0500, Jeff Garzik wrote:
> Nigel Cunningham wrote:
> > Hi.
> >
> > On Tue, 2006-12-26 at 08:49 -0800, H. Peter Anvin wrote:
> >> Nigel Cunningham wrote:
> >>> Hi.
> >>>
> >>> I've have git trees against a few versions besides Linus', and have just
> >>> moved all but Linus' to staging to help until you can get your new
> >>> hardware. If others were encouraged to do the same, it might help a lot?
> >>>
> >> Not really. In fact, it would hardly help at all.
> >>
> >> The two things git users can do to help is:
> >>
> >> 1. Make sure your alternatives file is set up correctly;
> >> 2. Keep your trees packed and pruned, to keep the file count down.
> >>
> >> If you do this, the load imposed by a single git tree is fairly negible.
> >
> > Sorry for the slow reply, and the ignorance... what's an alternatives
> > file? I've never heard of them before.
>
> It's highly useful but poorly documented method of referencing
> repository B's objects from repository A.
>
> When you clone locally
>
> git clone --reference linus-2.6 linus-2.6 nigel-2.6
>
> it will create nigel-2.6 with zero objects, and an alternatives file
> pointing to 'linus-2.6' local repository. When you commit, only the
> objects not already in linus-2.6 will be found in nigel-2.6.
>
> It's far better "git clone -l ..." because you don't even have the
> additional hardlinked inodes, and don't have to run "git relink" locally.

Cool. I'll have a play :)

Thanks!

Nigel

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