linux-kernel - Re: [RFC PATCH 4/9] mm: zswap: move more same-filled pages checks outside of zswap

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Message-ID: <CAKEwX=OD9_MHPLDgOC3yM86nY4BCNNuav2m=QfoJ7GNADw8GDQ@mail.gmail.com>
Date: Tue, 26 Mar 2024 14:57:08 -0700
From: Nhat Pham <nphamcs@...il.com>
To: Yosry Ahmed <yosryahmed@...gle.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>, Johannes Weiner <hannes@...xchg.org>, 
	Chengming Zhou <chengming.zhou@...ux.dev>, linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 4/9] mm: zswap: move more same-filled pages checks
 outside of zswap_store()

On Mon, Mar 25, 2024 at 4:50 PM Yosry Ahmed <yosryahmed@...gle.com> wrote:
>
> Currently, zswap_store() check zswap_same_filled_pages_enabled, kmaps
> the folio, then calls zswap_is_page_same_filled() to check the folio
> contents. Move this logic into zswap_is_page_same_filled() as well (and
> rename it to use 'folio' while we are at it).
>
> This makes zswap_store() cleaner, and makes following changes to that
> logic contained within the helper.
>
> Signed-off-by: Yosry Ahmed <yosryahmed@...gle.com>

Reviewed-by: Nhat Pham <nphamcs@...il.com>