Re: [PATCH v2 0/4] zcache: a compressed file page cache

[Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>]

On Tue, Aug 06, 2013 at 10:24:20PM +0800, Bob Liu wrote:
> Hi Greg,
> 
> On 08/06/2013 09:58 PM, Greg KH wrote:
> > On Tue, Aug 06, 2013 at 07:36:13PM +0800, Bob Liu wrote:
> >> Dan Magenheimer extended zcache supporting both file pages and anonymous pages.
> >> It's located in drivers/staging/zcache now. But the current version of zcache is
> >> too complicated to be merged into upstream.
> > 
> > Really?  If this is so, I'll just go delete zcache now, I don't want to
> > lug around dead code that will never be merged.
> > 
> 
> Zcache in staging have a zbud allocation which is almost the same as
> mm/zbud.c but with different API and have a frontswap backend like
> mm/zswap.c.
> So I'd prefer reuse mm/zbud.c and mm/zswap.c for a generic memory
> compression solution.
> Which means in that case, zcache in staging = mm/zswap.c + mm/zcache.c +
> mm/zbud.c.
> 
> But I'm not sure if there are any existing users of zcache in staging,
> if not I can delete zcache from staging in my next version of this
> mm/zcache.c series.

I think the Samsung folks are using it (zcache).

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