On 7/2/07, Jörn Engel <[email protected]> wrote:
On Mon, 2 July 2007 10:44:00 -0700, Jared Hulbert wrote:
>
> >So what you mean is "swap on flash" ? Defintively sounds like an
> >interesting topic, although I'm not too sure it's all that
> >filesystem-related.
>
> Maybe not. Yet, it would be a very useful place to store data from a
> file as a non-volatile page cache.
>
> Also it is something that I believe would benefit from a VFS-like API.
> I mean there is a consistent interface a management layer like this
> could use, yet the algorithms used to order the data and the interface
> to the physical media may vary. There is no single right way to do
> the management layer, much like filesystems.
>
> Given the page orientation of the current VFS seems to me like there
> might be a nice way to use it for this purpose.
>
> Or maybe the real experts on this stuff can tell me how wrong that is
> and where it should go :)
I don't believe anyone has implemented this before, so any experts would
be self-appointed.
Maybe this should be turned into a filesystem subject after all. The
complexity comes from combining XIP with writes on the same chip. So
solving your problem should be identical to solving the rw XIP
filesystem problem.
If there is interest in the latter, I'd offer my self-appointed
expertise.
Right, the solution to swap problem is identical to the rw XIP
filesystem problem. Jörn, that's why you're the self-appointed
subject matter expert!
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