JFFS2 - how does the new page allocated?

JFFS2 - how does the new page allocated?

[Howard Yoo]

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I'm currently analyzing the structure of JFFS2, for research reason.
I have a simple question,

When JFFS2 allocates a new page to store the newly entering data, how
does it select the new page? Does it allocate a new block for each new
page request, or does it intelligently reuse the dirty marked page first
to be more space efficient? I would like to get some hints on how JFFS2
provisions pages and blocks..



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Re: JFFS2 - how does the new page allocated?

[David Woodhouse]

On Fri, 2006-11-24 at 18:50 +0900, Howard Yoo wrote:
> I'm currently analyzing the structure of JFFS2, for research reason.
> I have a simple question,
> 
> When JFFS2 allocates a new page to store the newly entering data, how
> does it select the new page? Does it allocate a new block for each new
> page request, or does it intelligently reuse the dirty marked page first
> to be more space efficient? I would like to get some hints on how JFFS2
> provisions pages and blocks..

I recommend you start by reading http://david.woodhou.se/jffs2.pdf

Then you should be able to ask questions which make slightly more sense
to me, and stand a better chance of getting a coherent answer :)

-- 
dwmw2