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Date: Sun, 12 Feb 2012 21:20:03 +0000
From: Al Viro <viro@ZenIV.linux.org.uk>
To: Richard Weinberger <richard@nod.at>
Cc: user-mode-linux-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] um: Cleanup headers files
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On Sun, Feb 12, 2012 at 10:01:49PM +0100, Richard Weinberger wrote:
> Am 12.02.2012 21:27, schrieb Al Viro:
> >>So, I pulled your work and merged it into my shiny new UML tree:
> >>git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml.git
> >
> >Hmm...  I would really, really recommend you to clean the git history in that
> >tree up.  As it is, you have
> >	* merge of that branch from um-headers
> >	* um: Switch to large mcmodel on x86_64
> >	* um: Serve io_remap_pfn_range()
> >	* 205 merges from Linus, from mid-April to late January.
> >	* mismerge from Linus on April 14; the diff between the result
> 
> Okay, I'll create a new tree. This one is definitely screwed.
> Sorry for the inconvenience.

Just create a new branch in the old one, populate it, verify that the
tree is what you want it to be, switch to your regular branch,
git reset --hard <the branch you've just built>, then git push --force
It's not worse than removal of old tree and replacing it with new one,
and it's less work...