linux-kernel - Re: [PATCH 06/14] Pramfs: Include files

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <4A3FDBFE.8050509@2net.co.uk>
Date:	Mon, 22 Jun 2009 20:31:10 +0100
From:	Chris Simmonds <chris@...t.co.uk>
To:	Arnd Bergmann <arnd@...db.de>
CC:	Marco <marco.stornelli@...il.com>, Sam Ravnborg <sam@...nborg.org>,
	Linux FS Devel <linux-fsdevel@...r.kernel.org>,
	Linux Embedded <linux-embedded@...r.kernel.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 06/14] Pramfs: Include files

Arnd Bergmann wrote:
> On Monday 22 June 2009, Marco wrote:
>> Sorry, I meant it's not currently possible. At the moment the only way
>> to use it as rootfs it's to copy all the data in an already mounted
>> (empty) ram partition and reboot. However it's not my first item on my
>> todo list because I think that it's possible to use it as rootfs but it
>> isn't the standard use for this fs.
> 
> Well, it doesn't have to work right away. What I'm asking to
> define the data structures in a way that keeps the layout stable
> across kernel updates. Since a future version of the file system
> might support cross-endian image creation, it would be good to
> define the data structures in a fixed endian mode already, so
> you don't have to change it in the future.
> 
> 	Arnd <><
> --
> To unsubscribe from this list: send the line "unsubscribe linux-embedded" in
> the body of a message to majordomo@...r.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 

I disagree: that adds an unnecessary overhead for those architectures 
where the cpu byte order does not match the data structure ordering. I 
think the data structures should be native endian and when mkpramfs is 
written it can take a flag (e.g. -r) in the same way mkcramfs does.

Chris Simmonds
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/