From nobody Thu Sep 11 12:53:56 2025 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4EEB3EB64DD for ; Thu, 3 Aug 2023 18:26:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231734AbjHCS0C (ORCPT ); Thu, 3 Aug 2023 14:26:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51002 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231469AbjHCS0A (ORCPT ); Thu, 3 Aug 2023 14:26:00 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1C553110 for ; Thu, 3 Aug 2023 11:25:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1691087112; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type; bh=Bg75TmGjdsFOEFOAfLLtRHbxB/2lhyot0KBO00fo9Xg=; b=ThP0J0aiU3n3zcBF3JH6Os/gpwh4SnKcVlIqbsrJ+i6/zT0Lv93NEwx/MWAh+2jvZV0e+E 1zGp51Rg3opxUIeqjRqnQ7k2inBxbRw+bSiylvuozMcwzdCDFw/+81nPYmbFOwckqm+vnH zLH1OxvmnUyP/TLuhYXXJ3AjLVQGA+M= Received: from mail-qk1-f200.google.com (mail-qk1-f200.google.com [209.85.222.200]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-483-P-pq8XFQOgO2tBbuIkaOKg-1; Thu, 03 Aug 2023 14:25:11 -0400 X-MC-Unique: P-pq8XFQOgO2tBbuIkaOKg-1 Received: by mail-qk1-f200.google.com with SMTP id af79cd13be357-76843c4b0f3so118319285a.2 for ; Thu, 03 Aug 2023 11:25:11 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1691087110; x=1691691910; h=user-agent:content-disposition:mime-version:message-id:subject:cc :to:from:date:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=Bg75TmGjdsFOEFOAfLLtRHbxB/2lhyot0KBO00fo9Xg=; b=bZkuarsl4Ygdvku+eQ9x9tdzyTTqZFf6u5Nzc/D29RqvOzq9EBoTcXYmGgfqeoUT3y DdCrdNRf+TqVxqz0CdwmTrn5XhtKfvRPMjfR999/OTNi84nFZRzOO8PI46QLm5l26PNN l8oftvrRn99yy4RGr4FzMS1JMB/HYX7PqShrCvXEtjOGO2G2dF0/MwdmwwLF+UMP7YX8 9nEXEHSvKiEZmB1e+64HJ3P4NJSRHE/n0tY1a+qttFv0P3VrWrtlTtCjYiy5kAZWvJgz KLdZPvXpHCAqguxGIMLtbW5VBlQfABfZg5+ViQoJVAJdyCwpjUWIQE5nLar2YRcuR9X4 Vs5g== X-Gm-Message-State: ABy/qLbG4F69KRWvJmzaz5Hy2tG6hVeATTIYB54S6SH/OOJj3J9D3Wbx NjoBiE39BqmLF4gtFboLXmBWBzwFROfVxskqdlrkBPcsZXgDZFgH9aLIZGqL/jE6L7Nigh2jXeF ns1J3hg+u8cdnzHpxW/JafY6x X-Received: by 2002:a05:620a:2411:b0:767:e993:5702 with SMTP id d17-20020a05620a241100b00767e9935702mr19254468qkn.35.1691087110593; Thu, 03 Aug 2023 11:25:10 -0700 (PDT) X-Google-Smtp-Source: APBJJlG8u1dArhCtl/gFW5cvCnwFM7M0fcDbBkzHRi/22XXRQTF7dNuPgLM+jSKKGLekwW/FPx8bXA== X-Received: by 2002:a05:620a:2411:b0:767:e993:5702 with SMTP id d17-20020a05620a241100b00767e9935702mr19254462qkn.35.1691087110340; Thu, 03 Aug 2023 11:25:10 -0700 (PDT) Received: from fedora ([174.89.37.244]) by smtp.gmail.com with ESMTPSA id dq15-20020a05622a520f00b0040c72cae9f9sm105382qtb.93.2023.08.03.11.25.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 03 Aug 2023 11:25:09 -0700 (PDT) Date: Thu, 3 Aug 2023 14:25:00 -0400 From: Lucas Karpinski To: Andrew Morton , Johannes Weiner , Michal Hocko , Roman Gushchin , Shakeel Butt , Muchun Song , Tejun Heo , Zefan Li , Shuah Khan Cc: Muchun Song , cgroups@vger.kernel.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3] selftests: cgroup: fix test_kmem_basic slab1 check Message-ID: MIME-Version: 1.0 Content-Disposition: inline User-Agent: NeoMutt/20230517 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" test_kmem_basic creates 100,000 negative dentries, with each one mapping to a slab object. After memory.high is set, these are reclaimed through the shrink_slab function call which reclaims all 100,000 entries. The test passes the majority of the time because when slab1 is calculated, it is often above 0, however, 0 is also an acceptable value. Signed-off-by: Lucas Karpinski Reviewed-by: Muchun Song --- v3: rebased on mm-unstable tools/testing/selftests/cgroup/test_kmem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/cgroup/test_kmem.c b/tools/testing/sel= ftests/cgroup/test_kmem.c index 1b2cec9d18a4..67cc0182058d 100644 --- a/tools/testing/selftests/cgroup/test_kmem.c +++ b/tools/testing/selftests/cgroup/test_kmem.c @@ -75,7 +75,7 @@ static int test_kmem_basic(const char *root) sleep(1); =20 slab1 =3D cg_read_key_long(cg, "memory.stat", "slab "); - if (slab1 <=3D 0) + if (slab1 < 0) goto cleanup; =20 current =3D cg_read_long(cg, "memory.current"); --=20 2.41.0