Re: [PATCH 00/10] Enhance /dev/mem to allow read/write of arbitrary physical addresses
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
- To: Ingo Molnar <mingo@xxxxxxx>
- Subject: Re: [PATCH 00/10] Enhance /dev/mem to allow read/write of arbitrary physical addresses
- From: Petr Tesarik <ptesarik@xxxxxxx>
- Date: Wed, 29 Jun 2011 11:05:59 +0200
- Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Fenghua Yu <fenghua.yu@xxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Paul Mundt <lethal@xxxxxxxxxxxx>, Russell King <linux@xxxxxxxxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Tony Luck <tony.luck@xxxxxxxxx>, x86@xxxxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, linux-ia64@xxxxxxxxxxxxxxx, linux-sh@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Arjan van de Ven <arjan@xxxxxxxxxxxxx>, Dave Jones <davej@xxxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
- In-reply-to: <20110617093032.GA19235@elte.hu>
- List-id: <linux-ia64.vger.kernel.org>
- Organization: SUSE LINUX, s.r.o.
- References: <201106171038.25988.ptesarik@suse.cz> <20110617093032.GA19235@elte.hu>
- User-agent: KMail/1.13.6 (Linux/2.6.37.6-0.5-default; KDE/4.6.0; i686; ; )
Dne Pá 17. června 2011 11:30:32 Ingo Molnar napsal(a):
> * Petr Tesarik <ptesarik@xxxxxxx> wrote:
> > This patch series enhances /dev/mem, so that read and write is
> > possible at any address. The patchset includes actual
> > implementation for x86.
>
> This series lacks a description of why this is desired.
>[...]
>
> Are you aware of any legitimate usecases?
Looking back at the mail tread, I'd say there are people who have legitimate
usecases. However, this may not be the most important question. At the moment,
the /dev/mem interface is broken (it doesn't implement the specification
correctly), and my patchset fixes it.
If there are no technical objections, I'd like to ask for an Acked-by from all
involved people.
@Ingo: you can also send a patchset that rips off the /dev/mem driver
completely if you believe that would get through. I'm completely fine with
that, because then the /dev/crash driver will no longer be a semi-broken re-
implementation of an existing in-kernel driver, so I'll be able to post it as
a new driver.
But please make a decision either way.
Petr Tesarik
--
To unsubscribe from this list: send the line "unsubscribe linux-ia64" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
[Index of Archives]
[Linux Kernel]
[Sparc Linux]
[DCCP]
[Linux ARM]
[Yosemite News]
[Linux SCSI]
[Linux x86_64]
[Linux for Ham Radio]