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From: Richard Weinberger <richard@nod.at>
To: linux-mtd@lists.infradead.org
Cc: 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,
	artem.bityutskiy@linux.intel.com, nyoushchenko@mvista.com
Subject: UBI fastmap updates
Date: Wed, 27 Jun 2012 17:57:40 +0200	[thread overview]
Message-ID: <1340812676-14460-1-git-send-email-richard@nod.at> (raw)

This is the next round of UBI fastmap updates.
Most changes are coding style and kernel doc fixes.

The highlights are:
	- Fastmap stores now the pool size in it's anchor PEB
	  such that users can set custom pool sizes. (E.g using ubinize)

I've addressed all TODOs.
I did not remove this point from the TODO list:
"2. Implement power-cut emulation infrastructure similar to what is in UBIFS and
   test UBI + fastmap with it."

Artem, do we really need a new power-cut emulation infrastructure?
I did some tests using integck (integck -p -m 0 /mnt).
Nothing bad happened. :-)
Ff you disable writing the fastmap at detach time you can also simulate
a power cut. I did that very often. We written fastmap has to be valid at any time!
Also if a power cut happens while writing the fastmap it's CRC will be
bad and fastmap falls back to scanning mode.
So, I'm not 100% sure what fastmap specific power cut tests need to be done.

Another point:
UBI_FM_MAX_POOL_SIZE is currently 256.
A fastmap pool cannot be greater than this value.
Are we fine with this upper limit?

If you want to test fastmap you can use my git repo:
git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubi2.git ubi2/v14

Enjoy!
//richard

[PATCH 01/16] UBI: Fastmap: Check find_mean_wl_entry()'s return
[PATCH 02/16] UBI: Fastmap: Kernel doc updates
[PATCH 03/16] UBI: Fastmap: Fix license version
[PATCH 04/16] UBI: Fastmap: Rename self_check_fastmap()
[PATCH 05/16] UBI: Fastmap: Address a TODO
[PATCH 06/16] UBI: Fastmap: Address another TODO
[PATCH 07/16] UBI: Fastmap: Address jet another TOOD
[PATCH 08/16] UBI: Fastmap: Address another TOOD
[PATCH 09/16] UBI: Fastmap: Be more verbose on fastmap failure
[PATCH 10/16] UBI: Fastmap: More kernel doc updates
[PATCH 11/16] UBI: Fastmap: Store pool sizes in fastmap
[PATCH 12/16] UBI: Fastmap: Make checkpatch.pl happy
[PATCH 13/16] UBI: Fastmap: Remove one point from TODO list
[PATCH 14/16] UBI: Fastmap: Remove one point from TODO list
[PATCH 15/16] UBI: Fastmap: Remove one point from TODO list
[PATCH 16/16] UBI: Fastmap: Remove one point from TODO list

             reply	other threads:[~2012-06-27 15:58 UTC|newest]

Thread overview: 72+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-27 15:57 Richard Weinberger [this message]
2012-06-27 15:57 ` [PATCH 01/16] UBI: Fastmap: Check find_mean_wl_entry()'s return value Richard Weinberger
2012-06-27 15:57 ` [PATCH 02/16] UBI: Fastmap: Kernel doc updates Richard Weinberger
2012-06-27 15:57 ` [PATCH 03/16] UBI: Fastmap: Fix license version Richard Weinberger
2012-06-27 15:57 ` [PATCH 04/16] UBI: Fastmap: Rename self_check_fastmap() Richard Weinberger
2012-06-28 12:44   ` Artem Bityutskiy
2012-06-27 15:57 ` [PATCH 05/16] UBI: Fastmap: Address a TODO Richard Weinberger
2012-06-27 15:57 ` [PATCH 06/16] UBI: Fastmap: Address another TODO Richard Weinberger
2012-06-27 15:57 ` [PATCH 07/16] UBI: Fastmap: Address jet another TOOD Richard Weinberger
2012-06-27 15:57 ` [PATCH 08/16] UBI: Fastmap: Address " Richard Weinberger
2012-06-27 15:57 ` [PATCH 09/16] UBI: Fastmap: Be more verbose on fastmap failure Richard Weinberger
2012-06-27 15:57 ` [PATCH 10/16] UBI: Fastmap: More kernel doc updates Richard Weinberger
2012-06-27 15:57 ` [PATCH 11/16] UBI: Fastmap: Store pool sizes in fastmap Richard Weinberger
2012-06-27 15:57 ` [PATCH 12/16] UBI: Fastmap: Make checkpatch.pl happy Richard Weinberger
2012-06-27 15:57 ` [PATCH 13/16] UBI: Fastmap: Remove one point from TODO list Richard Weinberger
2012-06-27 15:57 ` [PATCH 14/16] " Richard Weinberger
2012-06-27 15:57 ` [PATCH 15/16] " Richard Weinberger
2012-06-27 15:57 ` [PATCH 16/16] " Richard Weinberger
  -- strict thread matches above, loose matches on Subject: below --
2013-09-28 13:55 UBI fastmap updates Richard Weinberger
2013-10-03 16:44 ` Artem Bityutskiy
2012-07-09 12:18 Richard Weinberger
2012-08-02 14:12 ` Artem Bityutskiy
2012-08-02 14:15   ` Richard Weinberger
2012-08-02 14:29     ` Artem Bityutskiy
2012-08-02 14:51       ` Richard Weinberger
2012-08-02 16:17         ` Artem Bityutskiy
2012-08-02 16:32           ` Richard Weinberger
2012-08-02 16:45             ` Artem Bityutskiy
2012-08-02 16:54               ` Richard Weinberger
2012-08-02 17:03               ` Tim Bird
2012-08-02 17:06                 ` Richard Weinberger
2012-08-02 17:40                 ` Artem Bityutskiy
2012-08-02 17:45                   ` Richard Weinberger
2012-08-02 17:59                     ` Artem Bityutskiy
2012-08-02 18:03                       ` Richard Weinberger
2012-08-02 18:15                         ` Artem Bityutskiy
2012-08-05  8:23                     ` Shmulik Ladkani
2012-08-05 14:25                       ` Richard Weinberger
2012-08-02 17:50                 ` Artem Bityutskiy
2012-08-02 14:58 ` Artem Bityutskiy
2012-08-02 14:59   ` Richard Weinberger
2012-08-02 15:18     ` Artem Bityutskiy
2012-08-02 15:19       ` Richard Weinberger
2012-08-06 17:36   ` Richard Weinberger
2012-08-07  4:21     ` Artem Bityutskiy
2012-08-07  7:29       ` Richard Weinberger
2012-08-07 18:53         ` Artem Bityutskiy
2012-08-02 18:50 ` Artem Bityutskiy
2012-08-02 18:56   ` Artem Bityutskiy
2012-08-03  8:47 ` Artem Bityutskiy
2012-08-03  8:56   ` Richard Weinberger
2012-08-17 13:11 ` Artem Bityutskiy
2012-08-17 13:33   ` Richard Weinberger
2012-08-17 13:41     ` Artem Bityutskiy
2012-08-17 13:43       ` Richard Weinberger
2012-08-17 14:06         ` Artem Bityutskiy
2012-07-02 16:23 Richard Weinberger
2012-06-29 15:14 Richard Weinberger
2012-06-30 10:43 ` Artem Bityutskiy
2012-06-30 10:53   ` Richard Weinberger
2012-06-30 11:24     ` Artem Bityutskiy
2012-06-30 14:24     ` Artem Bityutskiy
2012-07-08 11:47 ` Shmulik Ladkani
2012-07-08 12:07   ` Richard Weinberger
2012-07-08 15:11     ` Richard Weinberger
2012-07-09  7:37     ` Shmulik Ladkani
2012-07-09  8:19       ` Richard Weinberger
2012-06-23 13:03 Richard Weinberger
2012-06-27  4:20 ` Namjae Jeon
2012-06-27  6:48   ` Nikita V. Youshchenko
2012-06-27  7:17     ` Richard Weinberger
2012-06-18 16:18 UBI Fastmap updates Richard Weinberger

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