From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qv1-f43.google.com (mail-qv1-f43.google.com [209.85.219.43]) (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 7E90766E8 for ; Tue, 13 Sep 2022 19:58:21 +0000 (UTC) Received: by mail-qv1-f43.google.com with SMTP id ml1so10116351qvb.1 for ; Tue, 13 Sep 2022 12:58:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date; bh=hB/8CHaP3epa66ZDI7eIxcYHinx9lai7E+SzdR8JK34=; b=DH5wOpdpiHaFFXY8TAT3JRecX64XiPNxiR/CcG1LrVu07Readvn0PWViKgBmDA60Pb UBITk9aWlYro2ikNI4WmLJPOCXwQOqtprdUB0CzoJZ72kknTQx9o/RitCRSffQDxQ5Q6 VTZyKVoIHd28mrFZHIQl9dz1uLmu560sdtEcQWDtP1q9dt0hIGQCuqCTjE9fttuhjONt 0HIT34gX8eS66xaVSIttBxYAN/YQSf5UtfsLj6aZ6r0xFgT3C7geS9uBf8xzXOro8Ch1 QuB8O5yFa+P3URJ5XpTXammfwNsUv1UpGQMU/vjO4KV44uIZqk+ZBhqofvaHP1BLFOQP ilEQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date; bh=hB/8CHaP3epa66ZDI7eIxcYHinx9lai7E+SzdR8JK34=; b=XE/tZ+nLZnf1e11CgHwJiZz4rqP20VzNqirKZ/ztA2XrWkeVEd1jjgMOLq4MG/ppZc I2XgYVqV/INo3gRdhlIhnAQ9WY8f1kVS8Jhx4F4RTNhbrZS9NV89w2qMv2why5L+pdTk ChMBiuJcnr6AapOHeVS5CkBC3XPzAou8wpdBOe47hev/ID0dc1bJaE72MMqBURtMaojz vWUab/xW6RArkdSDwxsn4AeCpdZwK+kqakl9ZQPCGF1jh5L7Vt63p6wEYBex2QEfq0lo rxpRuIurFMnhlAfdM6rs5E+0AvjsXrwVgQQIG5NU/ByQcWiTJzysnFwk08wJ7kiDuOPK FXrg== X-Gm-Message-State: ACgBeo3QEh7mvwUy+NJT9OMIKLls8BSzEydsG4/xNaVOq5o7TfM+DOY1 uygzjAJ8XS58SQVPh5D3tjA= X-Google-Smtp-Source: AA6agR4VzptNv0IdYnihlFGaNyhbElSt3SCLpuN9uI3qoIO24r77G7BDUS/ieSa0RDNa+EBnGiO84g== X-Received: by 2002:a0c:c98a:0:b0:4ac:9f4b:efed with SMTP id b10-20020a0cc98a000000b004ac9f4befedmr14045129qvk.35.1663099100395; Tue, 13 Sep 2022 12:58:20 -0700 (PDT) Received: from stbirv-lnx-3.igp.broadcom.net ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id s11-20020a05620a29cb00b006b8e049cf08sm276305qkp.2.2022.09.13.12.58.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 13 Sep 2022 12:58:19 -0700 (PDT) From: Doug Berger To: Andrew Morton Cc: Jonathan Corbet , Rob Herring , Krzysztof Kozlowski , Frank Rowand , Mike Kravetz , Muchun Song , Mike Rapoport , Christoph Hellwig , Marek Szyprowski , Robin Murphy , Borislav Petkov , "Paul E. McKenney" , Neeraj Upadhyay , Randy Dunlap , Damien Le Moal , Doug Berger , Florian Fainelli , David Hildenbrand , Zi Yan , Oscar Salvador , Hari Bathini , Kees Cook , - , KOSAKI Motohiro , Mel Gorman , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-mm@kvack.org, iommu@lists.linux.dev Subject: [PATCH 07/21] lib/show_mem.c: display MovableOnly Date: Tue, 13 Sep 2022 12:54:54 -0700 Message-Id: <20220913195508.3511038-8-opendmb@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220913195508.3511038-1-opendmb@gmail.com> References: <20220913195508.3511038-1-opendmb@gmail.com> Precedence: bulk X-Mailing-List: iommu@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The comment for commit c78e93630d15 ("mm: do not walk all of system memory during show_mem") indicates it "also corrects the reporting of HighMem as HighMem/MovableOnly as ZONE_MOVABLE has similar problems to HighMem with respect to lowmem/highmem exhaustion." Presuming the similar problems are with regard to the general exclusion of kernel allocations from either zone, I believe it makes sense to include all ZONE_MOVABLE memory even on systems without HighMem. To the extent that this was the intent of the original commit I have included a "Fixes" tag, but it seems unnecessary to submit to linux-stable. Fixes: c78e93630d15 ("mm: do not walk all of system memory during show_mem") Signed-off-by: Doug Berger --- lib/show_mem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/show_mem.c b/lib/show_mem.c index 1c26c14ffbb9..337c870a5e59 100644 --- a/lib/show_mem.c +++ b/lib/show_mem.c @@ -27,7 +27,7 @@ void show_mem(unsigned int filter, nodemask_t *nodemask) total += zone->present_pages; reserved += zone->present_pages - zone_managed_pages(zone); - if (is_highmem_idx(zoneid)) + if (zoneid == ZONE_MOVABLE || is_highmem_idx(zoneid)) highmem += zone->present_pages; } } -- 2.25.1