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]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 37798C4451C for ; Sat, 18 Jul 2026 09:53:59 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id C1EE96B0099; Sat, 18 Jul 2026 05:53:57 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id BF6696B009D; Sat, 18 Jul 2026 05:53:57 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B33EE6B009F; Sat, 18 Jul 2026 05:53:57 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id 87EE36B0099 for ; Sat, 18 Jul 2026 05:53:57 -0400 (EDT) Received: from smtpin28.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay06.hostedemail.com (Postfix) with ESMTP id 08792A09DB for ; Sat, 18 Jul 2026 09:53:57 +0000 (UTC) X-FDA: 85001436114.28.11390EC Received: from out-178.mta1.migadu.com (out-178.mta1.migadu.com [95.215.58.178]) by imf08.hostedemail.com (Postfix) with ESMTP id 45EB8160004 for ; Sat, 18 Jul 2026 09:53:55 +0000 (UTC) Authentication-Results: imf08.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=OcCr8E5O; dmarc=pass (policy=none) header.from=linux.dev; spf=pass (imf08.hostedemail.com: domain of ridong.chen@linux.dev designates 95.215.58.178 as permitted sender) smtp.mailfrom=ridong.chen@linux.dev ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1784368435; 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-transfer-encoding:content-transfer-encoding: in-reply-to:references:dkim-signature; bh=TU7mrx5DtF0KFJ2y4d8E6VS3OLaCQseBFQLZUn6IewI=; b=XK/DwCd3G9aw+G+bVWMZqTUITj6YPLsl8ZQpzxRiolGfXRLmvLacirjniykSngKjDQ/YlZ 6Fb18jq4+6wchpVfnG4l82LUgHhrQOVo0262ZMvcG9qgde94A8TSVv0AyQI6bMeS7WSIqK 2Qk4Wgem4Fe09EKFpXKfjUCSmp7Pw0s= ARC-Authentication-Results: i=1; imf08.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=OcCr8E5O; dmarc=pass (policy=none) header.from=linux.dev; spf=pass (imf08.hostedemail.com: domain of ridong.chen@linux.dev designates 95.215.58.178 as permitted sender) smtp.mailfrom=ridong.chen@linux.dev ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1784368435; b=lVs/gX/HBWaG29wF8Cqjq5JWayPFxZlMxvDYSypkQgwlksZ+GBSh0HBhHhNgjHtT7ZzCxA C/cP5zl9dkp//st0VktfCjtRD/+6Y1KQLq7wGaqbN7EPMyxqZX6ZlXsJMD8qYKm+JyXpUJ YoeasMs7dobYVbuHeJkT18O81je6FiE= X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1784368433; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=TU7mrx5DtF0KFJ2y4d8E6VS3OLaCQseBFQLZUn6IewI=; b=OcCr8E5O5Yj8NyB0vF7HPdl5tzPHgqk5VXyRrYP8LqqmyeAe0N2gQa7TTbgAAhyRFaMAn2 DkeqaV6cX6k34yet3dyMtXYOyVq93vqp1k/ivAlKbb5FhfKttPKA3A/gFsLWNEkVeFwL6t ErCkBHzOXkl8nyr8gQxJN6F7mtMqZ0w= From: Ridong Chen To: akpm@linux-foundation.org Cc: hannes@cmpxchg.org, david@kernel.org, mhocko@kernel.org, qi.zheng@linux.dev, shakeel.butt@linux.dev, ljs@kernel.org, kasong@tencent.com, baohua@kernel.org, axelrasmussen@google.com, yuanchu@google.com, weixugc@google.com, hezhongkun.hzk@bytedance.com, muchun.song@linux.dev, dave@stgolabs.net, roman.gushchin@linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org, ridong.chen@linux.dev, Ridong Chen Subject: [PATCH v2 0/4] mm/vmscan: fix swappiness=max and clean up per-node proactive reclaim Date: Sat, 18 Jul 2026 17:52:47 +0800 Message-ID: <20260718095251.82937-1-ridong.chen@linux.dev> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT X-Rspamd-Queue-Id: 45EB8160004 X-Stat-Signature: x1fkd4kb5uqedfw6htrhqo38zyg9uik4 X-Rspam-User: X-Rspamd-Server: rspam12 X-HE-Tag: 1784368435-68583 X-HE-Meta: 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 zoKr2QKV XISe5IwPBapblUa8DigEuzGngEWtzYf90TG++ZcEpJSXni92NBMb6v4EcxXZIuw1JiBh3RLdFNZvzttXAVj3M0ggD6fQZgiR2Pxu0E17LvnJhutrPoOCz+c5eUAwfEdgNyOw1OxDFJdLYRrDvwBdyJKF7cHuXlrVQZw0ATjq4EAIjBZIvlypWsfHSPZZLNoEfCoQshAkyXUruQVxK1LFPsudt9XpUwt98PlRi Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: From: Ridong Chen Fixes and one cleanup. Patch 1 fixes "swappiness=max": the anon-only test in get_scan_count() sat after the "cannot reclaim anon" check, so when no anon was reclaimable the request fell back to SCAN_FILE and evicted page cache instead. Patch 2 fixes reclaim_store() collapsing every error into -EAGAIN, so callers can no longer tell an invalid argument from a busy interface; propagate the real error code, matching the memcg path. Patch 3 drops the now-unused gfp_mask parameter from __node_reclaim(). Patch 4 fixes the same "swappiness=max" issue for MGLRU. --- Changes since v1: - Collected review tags for patches 1-3 - Added patch 4 to fix the same issue in the MGLRU path. Ridong Chen (4): mm/vmscan: fix anon-only reclaim evicting file pages when swappiness=max mm: vmscan: propagate real error code from per-node proactive reclaim mm: vmscan: drop unused gfp_mask parameter from __node_reclaim() mm/mglru: fix anon-only reclaim evicting file pages when swappiness=max mm/vmscan.c | 43 +++++++++++++++++++++++++++++-------------- 1 file changed, 29 insertions(+), 14 deletions(-) -- 2.43.0