Re: Making diff(1) of linux kernels faster

Wojtek Pilorz
2001-10-18T10:00:34Z

On Thu, 18 Oct 2001, Nick Craig-Wood wrote:

> Date: Thu, 18 Oct 2001 09:02:22 +0100
> From: Nick Craig-Wood <ncw@axis.demon.co.uk>
> To: linux-kernel@vger.kernel.org
> Cc: Paul Gortmaker <p_gortmaker@yahoo.com>, vonbrand@sleipnir.valparaiso.cl,
> willy tarreau <wtarreau@yahoo.fr>
> Subject: Re: Making diff(1) of linux kernels faster
>
> Horst von Brand wrote:
> > =?iso-8859-1?q?willy=20tarreau?= <wtarreau@yahoo.fr> said:
> > > Be very careful not to modify a multi-linked file, or
> > > it will be damaged in all trees and won't be seen by
To be sure it is not possible to modify original tree files, I do
chown -R root.root original_tree

before copying it (via cp -lR) to new one, which will be modified with
whatever tools by me, logged in as a regular user. For those having root
access to a box this might be a useful way of preventing accidents ...
(this of course also assumes sane file permissions)
[...]
> > > diff. your editor must unlink before saving.
> >
> > Most don't. ed(1), vi(1) and emacs(1) are careful tro write to the very
> > same file. jed(1) is the only outlier I'm aware of...
>
> emacs does mv file file~ before saving file so the edited file will
> not be linked byt the backup file will be. You can stop it doing this
> by setting backup-by-copying-when-linked.
>
Best regards,

Wojtek

--------------------
Wojtek Pilorz
Wojtek.Pilorz@bdk.pl