linux-kernel - Re: git/cscope with x86 merge

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Date:	Sat, 20 Oct 2007 02:40:18 -0700
From:	"Yinghai Lu" <yhlu.kernel@...il.com>
To:	"Linus Torvalds" <torvalds@...ux-foundation.org>
Cc:	"Andi Kleen" <ak@...e.de>, "Thomas Gleixner" <tglx@...utronix.de>,
	"Ingo Molnar" <mingo@...e.hu>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Sam Ravnborg" <sam@...nborg.org>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>
Subject: Re: git/cscope with x86 merge

On 10/15/07, Linus Torvalds <torvalds@...ux-foundation.org> wrote:
>
>
> On Mon, 15 Oct 2007, Yinghai Lu wrote:
> >
> > after the merge:
> > 1. git
> > git log -p arch/x86/kernel/io_apic_64.c
> > only can show the log from the merge..., and can not get log before
> > merge for x86_64/kernel/io_apic.c
> > Any git update for that?
>
> Use
>
>         git log -p --follow arch/x86/kernel/io_apic_64.c
>
> where the "--follow" tells git to follow renames.
>
> And, of course, "git blame -C" will follow renames and copying of code
> across file boundaries too.
>
> NOTE! In both cases you may actually have to tell git to not limit its
> rename detection when it sees lots of files. You can do that
> once-and-for-all with
>
>         git config --global diff.renamelimit 0
>
> which should take care of it (although it seems that due to unlucky
> timing, the current stable git release does not honor the renamelimit for
> merging, so if you actually need to have git merge data across a rename,
> you should use the current "master" branch of git. Junio is sadly away
> for two weeks right now)

git log -p --follow arch/x86/kernel/vmlinux_64.lds.S

can not trace to arch/x86_64/kernel/vmlinux.lds.S

YH
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