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References: <20240201-b4-zswap-invalidate-entry-v1-0-56ed496b6e55@bytedance.com>
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In-Reply-To: <20240201-b4-zswap-invalidate-entry-v1-3-56ed496b6e55@bytedance.com>
From: Nhat Pham <nphamcs@gmail.com>
Date: Thu, 1 Feb 2024 10:10:12 -0800
Message-ID: <CAKEwX=OSrj5nwspuO7jyR4h5iZkKsP4P-mQbZt67OC1G=wgLYQ@mail.gmail.com>
Subject: Re: [PATCH 3/6] mm/zswap: stop lru list shrinking when encounter warm region
To: Chengming Zhou <zhouchengming@bytedance.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>, Andrew Morton <akpm@linux-foundation.org>, 
	Yosry Ahmed <yosryahmed@google.com>, linux-kernel@vger.kernel.org, linux-mm@kvack.org
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On Thu, Feb 1, 2024 at 7:50=E2=80=AFAM Chengming Zhou
<zhouchengming@bytedance.com> wrote:
>
> When the shrinker encounter an existing folio in swap cache, it means
> we are shrinking into the warmer region. We should terminate shrinking
> if we're in the dynamic shrinker context.
>
> This patch add LRU_STOP to support this, to avoid overshrinking.
>
> Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>

Nice!
Acked-by: Nhat Pham <nphamcs@gmail.com>