From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f48.google.com (mail-pj1-f48.google.com [209.85.216.48]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8DA163FADFD for ; Tue, 14 Jul 2026 08:15:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.48 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784016928; cv=none; b=Er4jlANJ1XET4B/yUf8VZmB1n+KKOTaaUZDA/Ch/xe4B/Dq52LMUxsy4tzv8fSyjMnL5L/GeY8rNRbBlQeTGJU79pKHa2/IpwXPlKsyalzfYdSPczkJdiOvrV2K9DPJUNjBHiRNUEEq9p7zslHQfw0ztUGByrwxE6xnvZeJhwZU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784016928; c=relaxed/simple; bh=gjDQFznmSdirZvXrAdUwJLGvKxuPAwsc2c+JUpH22sk=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=jqiHjYZ/8yuiZ1PklSnHrbuk/A6XMNtZy2BcITtvT0DttNZfjBN9uXnF9hyGHkxAQHSbeycMS4DpUDdLi9yIvXdroPddN8bI8IMMcbqbQL1uOshMixpsXJtGqd0RE266TDMF3F8AJud5b87A7Xs5Q4QmmhMYpgjaqLfyB85s364= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=ZmeHp5q1; arc=none smtp.client-ip=209.85.216.48 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ZmeHp5q1" Received: by mail-pj1-f48.google.com with SMTP id 98e67ed59e1d1-38dd55ad76cso511371a91.1 for ; Tue, 14 Jul 2026 01:15:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1784016925; x=1784621725; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to:content-type; bh=6v3T/GQPfCFX0/32VfRd7BGJzQx4Npq1DwXlYIYPAls=; b=ZmeHp5q1ZQC6aT4JHDAIqALPy9+wBrvJ8F9ddM71+UGiXpGm/LSGtYEPlF18UJ000B /yW/i67CEnIsVRfbsyZKUlrdJ+mYa5fpUmF8uWPo83tY2MU9ncynaLxSuFtFrqeEzXtN y6pt8nuEzWgG7tP4yCTmC7xu9RiZTd4lAhFj4sUmh8+BoH9BET/1/jZW7NwTIgJF4urz 8v4jrdkb2+1jots44sla1AeOyTK2ditDw7rkyQYEF2EjnsXTP2JyZ6fWaVcSSwQmpZ2S /0nS+KyxN/YkLjdNe2QwpmJNhYab4SuFsr++ndXWOV7F2D4kWvTUFWtTA/zlItFbeVUD k0og== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1784016925; x=1784621725; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=6v3T/GQPfCFX0/32VfRd7BGJzQx4Npq1DwXlYIYPAls=; b=VXg/QpGKkKdvJLNgEUbJoRX3sEFbyCHZzIT36YxiToSQgqmU6vykbLccTsoMR8OSf2 xFoIbEWXcuRBNhPgvojPamGAiBfJEfX7IZU/yeci38zKeGoq9Tot5U7fc3ZA9NcHFUHW QknMPlyo9GK9zbCYBxWgFF9JJnXQirbS7dlA1jJ8CK+mXXzdqzYXKQN7q97mGQjDUzif XcHOM+UHvQQIXcr/beIX43WI0NZ+kPRzOo7ZnA8AByKtr53u0aibU1p8jLD1US9/q83N eVKWKuV+webonWlUMwiWYCFCTTCwtPikpquSeyUn113hIo3LlhGj+4ODciybdgrRlo6Q Lp7Q== X-Forwarded-Encrypted: i=1; AHgh+RrobFqhsI/1ncugt1/v29j9oHti96QJVTyUj+Sui0K/cXR7hrHN3gV/vkueupKEyleaLA79NAxAC48=@vger.kernel.org X-Gm-Message-State: AOJu0YxP5LAQmEmreiIkuirj0DwVDtpz41SBR77rrl9KUk659AA/nIme OnplpFOoOjPR6lNtXBeJzugzpxG8krnOfRzMtLIxdfRk/+1Y9oxL0E6+ X-Gm-Gg: AfdE7cneUUNtnUkREo0kwPeRdWMtVfUkLvKk9g0WJDVEC7osXgSWrXKm4VUuClKIhcr d/cF0zCD4U+TTcXtPBNonFXEEKAqvFcwkIMhA5V6CzL/EkigxCTRudV9Y0zFjmYmXpc80/8BCJo HDat9vG0oQt1ixk1R/GEsIH4MR0O5hA0pxHz2JGfoNTkyy04wp/FPvhreT4S10aZ2ZHBsU11vdv gWvzF5Tytd1SWpijTmdVXxRD6M9esdf52squXZWz4n1TC4WO/UfNLW8BWBKFOEVcAQjMp0iy7pd C0skgpA3B5Gd27koWaJZeORpwkYhSqdAfnB3cNwRE9sRAq1xGatRr6L74V7F0BfSPjQsvHrtd9m 8t/VO+y6STxAQmHwEe/MbMeFYnQWtzMjkM2gupY7InxnSZzNIki5kgPekL23IHq1I39j1fUB0rZ 1IP1+F6MYRfhdJZtnWHg7xAJPX/95kOQIyxRcUJe41 X-Received: by 2002:a17:90b:3b87:b0:38e:120d:df07 with SMTP id 98e67ed59e1d1-38e120de08cmr3459964a91.11.1784016924878; Tue, 14 Jul 2026 01:15:24 -0700 (PDT) Received: from localhost.localdomain ([210.184.73.204]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-38e17443f4fsm1091008a91.11.2026.07.14.01.15.17 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Tue, 14 Jul 2026 01:15:24 -0700 (PDT) From: Hao Jia To: akpm@linux-foundation.org, tj@kernel.org, hannes@cmpxchg.org, shakeel.butt@linux.dev, mhocko@kernel.org, yosry@kernel.org, mkoutny@suse.com, nphamcs@gmail.com, chengming.zhou@linux.dev, muchun.song@linux.dev, roman.gushchin@linux.dev Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, Hao Jia Subject: [PATCH 0/2] mm/zswap: Fixes and improves the zswap global shrinker Date: Tue, 14 Jul 2026 16:15:08 +0800 Message-Id: <20260714081510.16895-1-jiahao.kernel@gmail.com> X-Mailer: git-send-email 2.39.2 (Apple Git-143) Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Hao Jia This is the first half of the patch series[1]. The remaining part, which covers proactive writeback, will be submitted later once the swap tiering design is finalized. This series fixes and improves the zswap global shrinker (shrink_worker()): Patch 1: Fix missing global shrinker when memory cgroup is disabled. Patch 2: Extend shrink_memcg() to support batch writeback and update its return value semantics, thereby improving the writeback efficiency in the shrink_worker() path. [1] https://lore.kernel.org/all/20260629112032.20423-1-jiahao.kernel@gmail.com Hao Jia (2): mm/zswap: Fix global shrinker when memory cgroup is disabled mm/zswap: Support batch writeback in shrink_memcg() mm/zswap.c | 100 +++++++++++++++++++++++++++++++++++++++-------------- 1 file changed, 75 insertions(+), 25 deletions(-) -- 2.34.1