Re: [RFC][PATCH 03/10] zsmalloc: introduce zs_can_compact() function

Sergey Senozhatsky
2015-06-04T04:19:13Z

On (06/04/15 12:50), Minchan Kim wrote:
> > On (06/04/15 12:30), Minchan Kim wrote:
> > >
> > > What scenario do you have a cocern?
> > > Could you describe this example more clear?
> >
> > you mean "how is this even possible"?
>
> No I meant. I couldn't understand your terms. Sorry.
>
> What free-objs class capacity is?
> page1 is zspage?
>
> Let's use consistent terms between us.
>
> For example, maxobj-per-zspage is 4.
> A is allocated and used. X is allocated but not used.
> so we can draw a zspage below.
>
> AAXX
>
> So we can draw several zspages linked list as below
>
> AAXX - AXXX - AAAX
>
> Could you describe your problem again?
>
> Sorry.

My apologies.

yes, so:
-- free-objs class capacity -- how may unused allocated objects
we have in this class (in total).
-- page1..pageN -- zspages.

And I think that my example is utterly wrong and incorrect. My mistake.
Sorry for the noise.

-ss