From: "H. Peter Anvin" <hpa@zytor.com>
To: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Matthew Wilcox <matthew@wil.cx>,
linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org,
sandeen@redhat.com
Subject: Re: ATA support for 4k sector size
Date: Wed, 25 Feb 2009 16:10:31 -0800 [thread overview]
Message-ID: <49A5DDF7.9070301@zytor.com> (raw)
In-Reply-To: <yq1skm2giwa.fsf@sermon.lab.mkp.net>
Martin K. Petersen wrote:
>
> hpa> Why one-time?
>
> It's a compromise to avoid hours of low-level formatting before you can
> use a drive. New drives will come from the factory formatted in a
> special way that can be switched instantaneously. But once you start
> writing you're stuck with it.
>
That's ridiculously stupid. All you need is an offset parameter, which
can be flipped at will. Now, flipping it will obviously scramble all
data, but there is absolutely no reason why it shouldn't be possible to
instantaneously flip it back and forth.
-hpa
next prev parent reply other threads:[~2009-02-26 0:10 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-25 22:24 ATA support for 4k sector size Matthew Wilcox
2009-02-25 22:24 ` [PATCH 1/2] ata: Define new commands from ATA8 Matthew Wilcox
2009-02-25 22:24 ` [PATCH 2/2] ata: Add support for Long Logical Sectors and Long Physical Sectors Matthew Wilcox
2009-02-25 22:53 ` ATA support for 4k sector size H. Peter Anvin
2009-02-25 23:27 ` Martin K. Petersen
2009-02-25 23:33 ` H. Peter Anvin
2009-02-25 23:51 ` Martin K. Petersen
2009-02-26 12:43 ` Karel Zak
2009-02-26 15:17 ` H. Peter Anvin
2009-02-25 23:42 ` H. Peter Anvin
2009-02-25 23:55 ` Martin K. Petersen
2009-02-25 23:57 ` H. Peter Anvin
2009-02-26 0:07 ` Martin K. Petersen
2009-02-26 0:10 ` H. Peter Anvin [this message]
2009-02-26 0:17 ` Martin K. Petersen
2009-02-25 23:49 ` david
2009-02-26 0:04 ` Martin K. Petersen
2009-02-26 0:13 ` david
2009-02-26 0:20 ` Martin K. Petersen
2009-02-26 2:50 ` Theodore Tso
2009-02-26 3:05 ` Martin K. Petersen
2009-02-26 3:07 ` Matthew Wilcox
2009-02-26 3:23 ` Martin K. Petersen
2009-12-11 7:05 ` James Andrewartha
2009-12-11 7:26 ` H. Peter Anvin
2009-12-11 7:32 ` Martin K. Petersen
2009-02-26 5:16 ` Martin K. Petersen
2009-02-26 12:36 ` Matthew Wilcox
2009-02-26 15:32 ` H. Peter Anvin
2009-02-26 20:35 ` Martin K. Petersen
2009-02-26 21:02 ` H. Peter Anvin
2009-03-16 14:51 ` Greg Freemyer
2009-03-16 16:27 ` H. Peter Anvin
2009-03-16 17:37 ` Greg Freemyer
2009-03-16 18:11 ` H. Peter Anvin
2009-03-22 1:20 ` Bill Davidsen
2009-03-18 14:33 ` James Bottomley
2009-02-26 18:22 ` hdparm-9.12 released Mark Lord
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=49A5DDF7.9070301@zytor.com \
--to=hpa@zytor.com \
--cc=linux-ide@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=martin.petersen@oracle.com \
--cc=matthew@wil.cx \
--cc=sandeen@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).