irst mount, only once, and may cause considerable delays.
See http://www.linux-mtd.infradead.org/faq/ubifs.html#L_free_space_fixup
P.S. Looking at the MTD web-site now, when I am not doing any
UBI/UBIFS/MTD work anymore for few years, I am impressed how much stuff
I actually documented there :-)
HTH.
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>
> Does UBI/UBIFS take care of this now?
No. UBIFS still assumes that blank pages are ECC-protected by the
driver. No one stepped in and took care of changing this yet.
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UBIFS needs is a way to ask the driver - is this NAND
page blank or not? UBIFS does not really has to compare to all 0xFFs.
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On Wed, 2014-01-15 at 21:29 +, Gupta, Pekon wrote:
> Hi Artem,
>
> >From: Artem Bityutskiy [mailto:artem.bityuts...@linux.intel.com]
>
> >Conclusion: all UBIFS needs is a way to ask the driver - is this NAND
> >page blank or not? UBIFS does not really
ime.
Normal reads do not need this. So _if_ there are measurable costs, I'd
argue that there is no need for people to pay it for nothing during
normal file I/O.
Hmm?
Thanks!
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k consists of 4 pages, and you write "data, 0xFFs, data,
0xFFs", then we'll only write "data, 0xFFs, data", so that the last NAND
page can be used later.
Sorry for my poor English, and I'm writing in a hurry - have to have to
a pub to farewell several colleagues who
rite some garbage there or your image, and try to
format it.
If you can describe how I can reproduce this in my PC, I might look at
this. Or you can just debug ubiformat yourself.
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Artem Bityutskiy (Артём Битюцкий)
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> Signed-off-by: Stefan Roese
> CC: Artem Bityutskiy
> CC: Adrian Hunter
Hi Stefan, your request to help you with removing more stuff is still
in my TODO list - I just do not have time for it.
In short - all this LEB categorization and heaps are also needed for
R/O FS and you may remo
On Mon, 2009-03-23 at 09:34 +0200, Artem Bityutskiy wrote:
> On Thu, 2009-03-19 at 15:35 +0100, Stefan Roese wrote:
> > The U-Boot UBIFS implementation is largely a direct copy from the current
> > Linux version (2.6.29-rc6). As already done in the UBI version we have an
> > &
ped the LPT mutex :-)
Also, you could probably remove a lot of code related to writing, if you
wanted. E.g., whole garbage collecting, committing, synching stuff, and
so on.
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Artem Bityutskiy (Битюцкий Артём)
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