linux-kernel - Re: [RFC PATCH 5/9] mm: zswap: remove zswap_same_filled_pages

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Message-ID: <20240328191109.GE7597@cmpxchg.org>
Date: Thu, 28 Mar 2024 15:11:09 -0400
From: Johannes Weiner <hannes@...xchg.org>
To: Yosry Ahmed <yosryahmed@...gle.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
	Nhat Pham <nphamcs@...il.com>,
	Chengming Zhou <chengming.zhou@...ux.dev>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 5/9] mm: zswap: remove zswap_same_filled_pages_enabled

On Mon, Mar 25, 2024 at 11:50:13PM +0000, Yosry Ahmed wrote:
> There is no logical reason to refuse storing same-filled pages more
> efficiently and opt for compression. Remove the userspace knob.
> 
> Signed-off-by: Yosry Ahmed <yosryahmed@...gle.com>

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

I also think the non_same_filled_pages_enabled option should go
away. Both of these tunables are pretty bizarre.