From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id BB174C4828E for ; Thu, 1 Feb 2024 18:10:27 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 2648A6B0088; Thu, 1 Feb 2024 13:10:27 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 212FB6B008A; Thu, 1 Feb 2024 13:10:27 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 0B4B96B008C; Thu, 1 Feb 2024 13:10:27 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id ECBE16B0088 for ; Thu, 1 Feb 2024 13:10:26 -0500 (EST) Received: from smtpin28.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay01.hostedemail.com (Postfix) with ESMTP id 583B91C0BCB for ; Thu, 1 Feb 2024 18:10:26 +0000 (UTC) X-FDA: 81744024852.28.6664EEF Received: from mail-il1-f176.google.com (mail-il1-f176.google.com [209.85.166.176]) by imf20.hostedemail.com (Postfix) with ESMTP id A6E411C0023 for ; Thu, 1 Feb 2024 18:10:24 +0000 (UTC) Authentication-Results: imf20.hostedemail.com; dkim=pass header.d=gmail.com header.s=20230601 header.b=T3qcXGep; spf=pass (imf20.hostedemail.com: domain of nphamcs@gmail.com designates 209.85.166.176 as permitted sender) smtp.mailfrom=nphamcs@gmail.com; dmarc=pass (policy=none) header.from=gmail.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1706811024; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=wQYi758VcG6rfwo5YK3Vo8ZUKysOs4ztBsO95stpGRw=; b=0iIYrrBTW3uVP3R8gySg81N4Z6ZflLeLmhEABvs0b3tzNWIDr4qABS7D5Dp2600itqysxj sfYCOxY2tbsow+D354uWS/scRwKhNxDr+Opk3YOZ00X/6S2Ou5jpEJR8kPbKV7OZbItThL 6l3/eVeSm2T+Tou0qoSAqYliY+vK8R0= ARC-Authentication-Results: i=1; imf20.hostedemail.com; dkim=pass header.d=gmail.com header.s=20230601 header.b=T3qcXGep; spf=pass (imf20.hostedemail.com: domain of nphamcs@gmail.com designates 209.85.166.176 as permitted sender) smtp.mailfrom=nphamcs@gmail.com; dmarc=pass (policy=none) header.from=gmail.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1706811024; a=rsa-sha256; cv=none; b=x/5IbE1DvRQ6iNvb3R3cUUy+21PITy71b/SjjfSrUfT05aTe6PT8EyO+RmEFmsnM8Owkin HYtx53uwQs/p4C7OLKZLVdSdEOyoR+LyP6hph9T+LO+/1Zp93XBIqN97GaSMd1Mj9Ms18x YpJYZ1akNUkgZRqC6tYawzo3O/3j3cA= Received: by mail-il1-f176.google.com with SMTP id e9e14a558f8ab-363844ae819so4775095ab.1 for ; Thu, 01 Feb 2024 10:10:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1706811023; x=1707415823; darn=kvack.org; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=wQYi758VcG6rfwo5YK3Vo8ZUKysOs4ztBsO95stpGRw=; b=T3qcXGep0x2bMw8c5o14jHyqINCAROCQNwxFiCqpSzkgRYzxtU14OA9uRZqeqSHx+T MRulIN6DF8RQ2RkOrY51LrV9jgEZQeLqutxrzImFoimBguBpBx7l6gJGCaLUhk9YbURy gJhccvpK3Np17g5xs0sUNhxJ6autGFnFSaRwkwvaXvnf627DXRD27hK3VLKK3blKGSWf o3XCPF84nGjQ/Ro8kA9o2m6EzbzOOog2egKjuefYTb6HUdBZIrC4DcVuZI/pJV+BFgR7 F/RrpYY/E4vXJMk6IYPbInUbx04o5GLnsMYz1wuO9UhmjamQjgUguSZtonAgLJv4+KVQ G25A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1706811023; x=1707415823; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=wQYi758VcG6rfwo5YK3Vo8ZUKysOs4ztBsO95stpGRw=; b=SygnWwkEC23gH865SjlJJ6KJ7eKFQ17C+DOv52q6BfODcASddJIMkFjJIrL2+INgtY HU2ES6mwxQ81VMxNhz8aOEALluJKJxpbzKsGzAc+XPZJ9H15s9kCuOixthd0UzU72Hj0 FI6upaZOtRYKd8UFgRmdrVMqGXSyDdYEiBOgqysgeRQdxdiziXh7rJ5wNNZlY9SmsrXD 7d4ZOr9NBUFBvafX3/4pA+hwmBdZQnzIy+XrQ0KsivLwC9MgOWn8pj2uMp+kuuM0rCb8 FXxKEDrqzeMfaPUFYbN09LIwhn3Tg3gW1zkYqolCnvWqhATtzsq8cWPsrBUmre4tpL0J gL1g== X-Gm-Message-State: AOJu0YxRlLxq8XcbZIxcQDEwhnqTyROmSu+Kx2MPxfL+2Uuwsuv+sorm p3AmQqNehhM8Lbtr5buZKQNyxJEL+OEipXOpqmVY4oIG8LVozL8OMihhJ8NpZ5PMgoJT0uw+Xj9 LaJ8obXXrkyW+WFxP4P9bekcXiWU= X-Google-Smtp-Source: AGHT+IFjKML2ehvzAKSPla2cVJ9tAYkQJGqCAeqe8VWjfKhsultsWpjv6i+KLYmKqqLEsuZPAo6pzTXcN73G0qR0IFs= X-Received: by 2002:a5e:d507:0:b0:7bf:87b6:623d with SMTP id e7-20020a5ed507000000b007bf87b6623dmr6427451iom.13.1706811023642; Thu, 01 Feb 2024 10:10:23 -0800 (PST) MIME-Version: 1.0 References: <20240201-b4-zswap-invalidate-entry-v1-0-56ed496b6e55@bytedance.com> <20240201-b4-zswap-invalidate-entry-v1-3-56ed496b6e55@bytedance.com> In-Reply-To: <20240201-b4-zswap-invalidate-entry-v1-3-56ed496b6e55@bytedance.com> From: Nhat Pham Date: Thu, 1 Feb 2024 10:10:12 -0800 Message-ID: Subject: Re: [PATCH 3/6] mm/zswap: stop lru list shrinking when encounter warm region To: Chengming Zhou Cc: Johannes Weiner , Andrew Morton , Yosry Ahmed , linux-kernel@vger.kernel.org, linux-mm@kvack.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspamd-Queue-Id: A6E411C0023 X-Rspam-User: X-Stat-Signature: zwyeekruzquyqju9dfziszysw4rnszds X-Rspamd-Server: rspam01 X-HE-Tag: 1706811024-540117 X-HE-Meta: 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 oXn8mipN dmgOqfdCuMBSBhXJFxXVdKlvUfso3DyIn+RRXQZgUW6BtEQU8ofeUklQpnMvndDJS30oXVY21At3pxhe0FQL2ilVgMKhi4b4JILzVJ19+GYmpgBOEvbsuVUvathgdQETKaf9y3ywjdw7XbaTYtNm7LMcwIryFWZBGgvetekDvc0V95wWTLaajXGn02vM3teP1chDTrO4w0UavJHuHoeQTJlfeOsUyLwJWr7bLzGjHjGDrNs1a7EQL2xJTEhp0hDHGjK6tQrnzuKCgGxsPv5U2tGtwIF1Og/mcV7PqVzzHq+FeCnX/jh2AZxmxVlMXOcrXbGvdt7ifO0mL+XgMHI/1IacdCC/HZeQtUqXlv59Jb8yZw++kcjbG/9PlTkiuEnCJB23PfDZ+0oB52hJs6rO47KQH493stea6NM8+2c5zZPK0S7baEhzkXblMmAm2rls34DJsMXwAlGcS3CE= X-Bogosity: Ham, tests=bogofilter, spamicity=0.310769, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Thu, Feb 1, 2024 at 7:50=E2=80=AFAM Chengming Zhou 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 Nice! Acked-by: Nhat Pham