linux-kernel - Re: [RFC PATCH v2 3/7] mm: zswap: remove page reclaim logic from z3fold

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Date:   Thu, 8 Jun 2023 12:05:31 -0400
From:   Johannes Weiner <hannes@...xchg.org>
To:     Domenico Cerasuolo <cerasuolodomenico@...il.com>
Cc:     vitaly.wool@...sulko.com, minchan@...nel.org,
        senozhatsky@...omium.org, yosryahmed@...gle.com,
        linux-mm@...ck.org, ddstreet@...e.org, sjenning@...hat.com,
        nphamcs@...il.com, akpm@...ux-foundation.org,
        linux-kernel@...r.kernel.org, kernel-team@...a.com
Subject: Re: [RFC PATCH v2 3/7] mm: zswap: remove page reclaim logic from
 z3fold

On Tue, Jun 06, 2023 at 04:56:07PM +0200, Domenico Cerasuolo wrote:
> With the recent enhancement to zswap enabling direct page writeback, the
> need for the shrink code in z3fold has become obsolete. As a result,
> this commit removes the page reclaim logic from z3fold entirely.

> @@ -1649,7 +1409,7 @@ static struct zpool_driver z3fold_zpool_driver = {
>  	.destroy =	z3fold_zpool_destroy,
>  	.malloc =	z3fold_zpool_malloc,
>  	.free =		z3fold_zpool_free,
> -	.shrink =	z3fold_zpool_shrink,
> +	.shrink =	NULL,
>  	.map =		z3fold_zpool_map,
>  	.unmap =	z3fold_zpool_unmap,
>  	.total_size =	z3fold_zpool_total_size,

Same two points of feedback on the changelog and the NULL as for
zbud. Otherwise,

Acked-by: Johannes Weiner <hannes@...xchg.org>