linux-kernel - Re: [RFC/PATCH] mtd: ubi: Free peb's synchronously for fastmap

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Message-ID: <CAFLxGvxDpggGAPu2rVz-KLkHS1KoQNqU-DOJ=xubVinFn68VEw@mail.gmail.com>
Date:	Wed, 9 Apr 2014 00:17:50 +0200
From:	Richard Weinberger <richard.weinberger@...il.com>
To:	"Bityutskiy, Artem" <artem.bityutskiy@...el.com>
Cc:	"tlinder@...eaurora.org" <tlinder@...eaurora.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>
Subject: Re: [RFC/PATCH] mtd: ubi: Free peb's synchronously for fastmap

On Tue, Apr 8, 2014 at 3:44 PM, Bityutskiy, Artem
<artem.bityutskiy@...el.com> wrote:
> On Tue, 2014-04-08 at 16:42 +0300, Artem Bityutskiy wrote:
>> On Tue, 2014-04-01 at 11:01 +0300, Tanya Brokhman wrote:
>> > At first mount it's possible that there are not enough free PEBs since
>> > there are PEB's pending to be erased. In such scenario, fm_pool (which is
>> > the pool from which user required PEBs are allocated) will be empty.
>> > Try fixing the above described situation by synchronously performing
>> > pending erase work, thus produce another free PEB.
>> >
>> > Signed-off-by: Tatyana Brokhman <tlinder@...eaurora.org>
>>
>> Pushed to linux-ubifs.git / master, thanks!
>
> Oh, sorry, this one I actually _dropped_. Would you please rather
> re-structure the code to avoid duplication. E.g., do what Richard
> suggested.

Tatyana, can you also please find out how many PEBs you need?
Strictly speaking we need only one (which should be produced by __wl_get_peb().
I want to make sure that we're not just papering over an issue. :-)

-- 
Thanks,
//richard
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