Re: [PATCH v5 00/21] mm/zsmalloc: add zpdesc memory descriptor for zswap.zpool

[Vishal Moola]

On Mon, Sep 2, 2024 at 8:20 PM Sergey Senozhatsky
<senozhatsky@xxxxxxxxxxxx> wrote:
>
> On (24/08/27 16:19), Vishal Moola wrote:
> >
> > Or should we aim to leave zsmalloc as it is currently implemented?
> >
>
> Is this really an option?

Yup. That would be similar to your initial suggestion: zpdescs would be a
wrapper around struct page and we "chain zpdesc-s together to form a zspage".

Although, we may as well aim for an improved implementation of zsmalloc (if at
all possible) since implementing the zpdesc wrapper requires us to modify a
good chunk of code anyways. That way zsmalloc gets direct wins for its users
on top of shrinking struct page as Matthew described before.

I believe you would be a better judge of whether or not any improvements
are feasible (and worth the effort).