linuxcompressed-devel

[lc-devel] Compressed Swap on 2.6

[Anderson B. <bri...@gm...>]

Hi all,

I'm trying to implement compressed swap on 2.6 kernel. I already read
the Nitin Gupta's wiki page about the implementation of Compressed
Cache on 2.6.x kernel.
Well, what I'm trying to do is quite simpler. I just wanna to use a
compressed swap area (not swap cache, just the swap area). I'm using
the LZO algo to compress the pages but I'm having problems to record a
compressed page in the swap device (swap area).
How can I use the bio structure to include a compressed page? The bio
structure already uses PAGE_SIZE as size, can I pass to bio the
comp_size instead of PAGE_SIZE?

Best Regards,

Anderson Briglia

Re: [lc-devel] Compressed Swap on 2.6

[<asb...@if...>]

Anderson Briglia wrote:
> I'm trying to implement compressed swap on 2.6 kernel. I already read
> the Nitin Gupta's wiki page about the implementation of Compressed
> Cache on 2.6.x kernel.
> Well, what I'm trying to do is quite simpler. I just wanna to use a
> compressed swap area (not swap cache, just the swap area).
<snip>

hm, I think you can do this already by putting the swap on a loopback
device that does compressing, if not, that might be the route to go..
less kernel hacking :)

Mvh,
Asbj=F8rn Sannes