From: Adrian Hunter <ext-adrian.hunter@nokia.com>
To: linux-mtd@lists.infradead.org
Subject: Re: Do not understand use of oobfree
Date: Mon, 05 Feb 2007 14:46:25 +0200 [thread overview]
Message-ID: <45C72721.90302@nokia.com> (raw)
In-Reply-To: <872380.68552.qm@web58702.mail.re1.yahoo.com>
ext Philip Rakity wrote:
> b) the oobfree area is specified as a {offset, length) pair. When this
> gets to say the jffs2 file system what does it see. For example
> .oobfree = { {8, 8} }
8 free bytes at offset 8
>
> it would see 8 bytes starting at offset 8 OR 8 bytes starting at offset
> 0 and the mtd driver would do the mapping.
>
> more complex example
> .oobfree = { {3, 2}, {6, 2} }
>
> would jffs2 see 4 bytes at offset 0. or 2 sets of data at offset 3 and
> offset 6.
2 free bytes at offset 3
2 free bytes at offset 6
Note that the total free bytes for a page is stored in oobavail.
prev parent reply other threads:[~2007-02-05 12:47 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-05 3:58 Do not understand use of oobfree Philip Rakity
2007-02-05 8:22 ` Artem Bityutskiy
2007-02-05 9:14 ` Artem Bityutskiy
2007-02-06 16:10 ` Philip Rakity
2007-02-05 12:46 ` Adrian Hunter [this message]
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=45C72721.90302@nokia.com \
--to=ext-adrian.hunter@nokia.com \
--cc=linux-mtd@lists.infradead.org \
/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