From: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
To: Richard Weinberger <richard@nod.at>
Cc: nyoushchenko@mvista.com, linux-kernel@vger.kernel.org,
adrian.hunter@intel.com, Heinz.Egger@linutronix.de,
thomas.wucher@linutronix.de, linux-mtd@lists.infradead.org,
shmulik.ladkani@gmail.com, tglx@linutronix.de,
Marius.Mazarel@ugal.ro, tim.bird@am.sony.com
Subject: Re: UBI fastmap updates
Date: Fri, 17 Aug 2012 16:41:24 +0300 [thread overview]
Message-ID: <1345210884.27859.90.camel@sauron.fi.intel.com> (raw)
In-Reply-To: <20120817153348.7a0a50a0@spider.haslach.nod.at>
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On Fri, 2012-08-17 at 15:33 +0200, Richard Weinberger wrote:
> Am Fri, 17 Aug 2012 16:11:55 +0300
> schrieb Artem Bityutskiy <artem.bityutskiy@linux.intel.com>:
> > We do not do anything like this in UBI because UBI does not need this,
> > it does not have any complex data structures on the media.
> >
> > With fastmap - I am unsure. I think it is not a problem, because
> > probably you never append more data, you just re-write everything,
> > right?
>
> Yep, the on-flash fastmap is immutable.
Here the question is - if you have PEB containing fastmap data,
half-filled. Will you ever add more data there to the empty space in the
PEB or not?
--
Best Regards,
Artem Bityutskiy
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WARNING: multiple messages have this Message-ID (diff)
From: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
To: Richard Weinberger <richard@nod.at>
Cc: nyoushchenko@mvista.com, linux-mtd@lists.infradead.org,
linux-kernel@vger.kernel.org, adrian.hunter@intel.com,
Heinz.Egger@linutronix.de, thomas.wucher@linutronix.de,
shmulik.ladkani@gmail.com, tglx@linutronix.de,
tim.bird@am.sony.com, Marius.Mazarel@ugal.ro
Subject: Re: UBI fastmap updates
Date: Fri, 17 Aug 2012 16:41:24 +0300 [thread overview]
Message-ID: <1345210884.27859.90.camel@sauron.fi.intel.com> (raw)
In-Reply-To: <20120817153348.7a0a50a0@spider.haslach.nod.at>
[-- Attachment #1: Type: text/plain, Size: 705 bytes --]
On Fri, 2012-08-17 at 15:33 +0200, Richard Weinberger wrote:
> Am Fri, 17 Aug 2012 16:11:55 +0300
> schrieb Artem Bityutskiy <artem.bityutskiy@linux.intel.com>:
> > We do not do anything like this in UBI because UBI does not need this,
> > it does not have any complex data structures on the media.
> >
> > With fastmap - I am unsure. I think it is not a problem, because
> > probably you never append more data, you just re-write everything,
> > right?
>
> Yep, the on-flash fastmap is immutable.
Here the question is - if you have PEB containing fastmap data,
half-filled. Will you ever add more data there to the empty space in the
PEB or not?
--
Best Regards,
Artem Bityutskiy
[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 836 bytes --]
next prev parent reply other threads:[~2012-08-17 13:36 UTC|newest]
Thread overview: 122+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-09 12:18 UBI fastmap updates Richard Weinberger
2012-07-09 12:18 ` Richard Weinberger
2012-07-09 12:18 ` [PATCH 1/7] UBI: Fastmap: Fix lock imbalance in case of an error Richard Weinberger
2012-07-09 12:18 ` Richard Weinberger
2012-07-09 12:18 ` [PATCH 2/7] UBI: Fastmap: Get rid of find_fastmap switch Richard Weinberger
2012-07-09 12:18 ` Richard Weinberger
2012-07-09 12:18 ` [PATCH 3/7] UBI: Fastmap: Fix memory leak in error path Richard Weinberger
2012-07-09 12:18 ` Richard Weinberger
2012-07-09 12:18 ` [PATCH 4/7] UBI: Fastmap: Fix double free " Richard Weinberger
2012-07-09 12:18 ` Richard Weinberger
2012-07-09 12:18 ` [PATCH 5/7] UBI: Fastmap: Kerneldoc fixes Richard Weinberger
2012-07-09 12:18 ` Richard Weinberger
2012-07-09 12:18 ` [PATCH 6/7] UBI: Fastmap: Make sure that find_wl_entry() never returns NULL Richard Weinberger
2012-07-09 12:18 ` Richard Weinberger
2012-07-09 12:18 ` [PATCH 7/7] UBI: Fastmap: Make checkpatch.pl happy Richard Weinberger
2012-07-09 12:18 ` Richard Weinberger
2012-08-02 14:12 ` UBI fastmap updates Artem Bityutskiy
2012-08-02 14:12 ` Artem Bityutskiy
2012-08-02 14:15 ` Richard Weinberger
2012-08-02 14:15 ` Richard Weinberger
2012-08-02 14:29 ` Artem Bityutskiy
2012-08-02 14:29 ` Artem Bityutskiy
2012-08-02 14:51 ` Richard Weinberger
2012-08-02 14:51 ` Richard Weinberger
2012-08-02 16:17 ` Artem Bityutskiy
2012-08-02 16:17 ` Artem Bityutskiy
2012-08-02 16:32 ` Richard Weinberger
2012-08-02 16:32 ` Richard Weinberger
2012-08-02 16:45 ` Artem Bityutskiy
2012-08-02 16:45 ` Artem Bityutskiy
2012-08-02 16:54 ` Richard Weinberger
2012-08-02 16:54 ` Richard Weinberger
2012-08-02 17:03 ` Tim Bird
2012-08-02 17:03 ` Tim Bird
2012-08-02 17:06 ` Richard Weinberger
2012-08-02 17:06 ` Richard Weinberger
2012-08-02 17:40 ` Artem Bityutskiy
2012-08-02 17:40 ` Artem Bityutskiy
2012-08-02 17:45 ` Richard Weinberger
2012-08-02 17:45 ` Richard Weinberger
2012-08-02 17:59 ` Artem Bityutskiy
2012-08-02 17:59 ` Artem Bityutskiy
2012-08-02 18:03 ` Richard Weinberger
2012-08-02 18:03 ` Richard Weinberger
2012-08-02 18:15 ` Artem Bityutskiy
2012-08-02 18:15 ` Artem Bityutskiy
2012-08-05 8:23 ` Shmulik Ladkani
2012-08-05 8:23 ` Shmulik Ladkani
2012-08-05 14:25 ` Richard Weinberger
2012-08-05 14:25 ` Richard Weinberger
2012-08-02 17:50 ` Artem Bityutskiy
2012-08-02 17:50 ` Artem Bityutskiy
2012-08-02 14:58 ` Artem Bityutskiy
2012-08-02 14:58 ` Artem Bityutskiy
2012-08-02 14:59 ` Richard Weinberger
2012-08-02 14:59 ` Richard Weinberger
2012-08-02 15:18 ` Artem Bityutskiy
2012-08-02 15:18 ` Artem Bityutskiy
2012-08-02 15:19 ` Richard Weinberger
2012-08-02 15:19 ` Richard Weinberger
2012-08-06 17:36 ` Richard Weinberger
2012-08-06 17:36 ` Richard Weinberger
2012-08-07 4:21 ` Artem Bityutskiy
2012-08-07 4:21 ` Artem Bityutskiy
2012-08-07 7:29 ` Richard Weinberger
2012-08-07 7:29 ` Richard Weinberger
2012-08-07 18:53 ` Artem Bityutskiy
2012-08-07 18:53 ` Artem Bityutskiy
2012-08-02 18:50 ` Artem Bityutskiy
2012-08-02 18:50 ` Artem Bityutskiy
2012-08-02 18:56 ` Artem Bityutskiy
2012-08-02 18:56 ` Artem Bityutskiy
2012-08-03 8:47 ` Artem Bityutskiy
2012-08-03 8:47 ` Artem Bityutskiy
2012-08-03 8:56 ` Richard Weinberger
2012-08-03 8:56 ` Richard Weinberger
2012-08-17 13:11 ` Artem Bityutskiy
2012-08-17 13:11 ` Artem Bityutskiy
2012-08-17 13:33 ` Richard Weinberger
2012-08-17 13:33 ` Richard Weinberger
2012-08-17 13:41 ` Artem Bityutskiy [this message]
2012-08-17 13:41 ` Artem Bityutskiy
2012-08-17 13:43 ` Richard Weinberger
2012-08-17 13:43 ` Richard Weinberger
2012-08-17 14:06 ` Artem Bityutskiy
2012-08-17 14:06 ` Artem Bityutskiy
-- strict thread matches above, loose matches on Subject: below --
2013-09-28 13:55 Richard Weinberger
2013-10-03 16:44 ` Artem Bityutskiy
2012-07-02 16:23 Richard Weinberger
2012-07-02 16:23 ` Richard Weinberger
2012-06-29 15:14 Richard Weinberger
2012-06-29 15:14 ` Richard Weinberger
2012-06-30 10:43 ` Artem Bityutskiy
2012-06-30 10:43 ` Artem Bityutskiy
2012-06-30 10:53 ` Richard Weinberger
2012-06-30 10:53 ` Richard Weinberger
2012-06-30 11:24 ` Artem Bityutskiy
2012-06-30 11:24 ` Artem Bityutskiy
2012-06-30 14:24 ` Artem Bityutskiy
2012-06-30 14:24 ` Artem Bityutskiy
2012-07-08 11:47 ` Shmulik Ladkani
2012-07-08 11:47 ` Shmulik Ladkani
2012-07-08 12:07 ` Richard Weinberger
2012-07-08 12:07 ` Richard Weinberger
2012-07-08 15:11 ` Richard Weinberger
2012-07-08 15:11 ` Richard Weinberger
2012-07-09 7:37 ` Shmulik Ladkani
2012-07-09 7:37 ` Shmulik Ladkani
2012-07-09 8:19 ` Richard Weinberger
2012-07-09 8:19 ` Richard Weinberger
2012-06-27 15:57 Richard Weinberger
2012-06-27 15:57 ` Richard Weinberger
2012-06-23 13:03 Richard Weinberger
2012-06-23 13:03 ` Richard Weinberger
2012-06-27 4:20 ` Namjae Jeon
2012-06-27 4:20 ` Namjae Jeon
2012-06-27 6:48 ` Nikita V. Youshchenko
2012-06-27 6:48 ` Nikita V. Youshchenko
2012-06-27 7:17 ` Richard Weinberger
2012-06-27 7:17 ` Richard Weinberger
2012-06-18 16:18 UBI Fastmap updates Richard Weinberger
2012-06-18 16:18 ` Richard Weinberger
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