From nobody Tue Dec 16 19:42:58 2025 Received: from mail-wm1-f73.google.com (mail-wm1-f73.google.com [209.85.128.73]) (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 5B9802571A3 for ; Tue, 11 Mar 2025 13:18:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.73 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741699121; cv=none; b=PAhw86UrjqpEgzZEVxOxFLX39KVwlf65A8nHQ3cemYJdwMaCE1iHtKoPOo9AG2v/MmNIKpwuDc7Rg2jBmHhqMiB/1c5Gw/b9ows5rIYZK6WD0yUcqP3CPdlicGKfq7LAYKMojegXIk4KDHzSew1m3a9Fg/03y3agieTbEV0i6y0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741699121; c=relaxed/simple; bh=keuqAf1Yd7pMC60Jehq/im4QvYhNmbzI5DqGZpBJqLI=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=B6ZlPmAlgJMOvuuNEFDRN2+My/3OCboNuv8mGR545AT2Te/W0Mt6pURRQ9tfPtOVI3+HTnIkQGXusw2T6GPzISsXywhBLZu8xsXWu3Ge3lvuBtr4tqk3eD7Q4aCDEqWWPDu/77qLCxRgoJYrqlFtsi7jsMdVMrsCdMrY2+PkCt8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--jackmanb.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=r8u+PQK9; arc=none smtp.client-ip=209.85.128.73 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--jackmanb.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="r8u+PQK9" Received: by mail-wm1-f73.google.com with SMTP id 5b1f17b1804b1-43d00017e9dso9065545e9.0 for ; Tue, 11 Mar 2025 06:18:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1741699118; x=1742303918; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=h7ic2pHOinjRIlh+O43kggDBsm61b3OXoKlUUGdMcQQ=; b=r8u+PQK9GbqRfxVUanAZh6A/XMo4EDT2oMZ1q8Uo/0jpRjQuNHIxczEEHPIm9oPzgu c3yIthtIbM+U8OMSBHSotcuAfucj6NmSybVqopKRA+qM3dCPhgcJKO8jxGnOiAU3PqR9 J9Xr+kdubXkcNeLEeNXf8NoRE7dK+gVMblUPc4PrS2yqHmzwIriUFFFnko5gDmv0vYPM VdWX6OK6oV/yMIwc0Cs5TUeyYCg6qi9MvV7kalpzmQIcaK5Omk1ClmiW4LE4LTsUbGHz JIsOXoOo2vnLtzrO/w9C72qZ+RUC/2UiWcX5+aPpYzN9WXwq9KnmNuMxNNQ+rr9X5Z4S nCBA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1741699118; x=1742303918; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=h7ic2pHOinjRIlh+O43kggDBsm61b3OXoKlUUGdMcQQ=; b=eZ+pUig2GmXI/Q5Z1Ao+qgYJrxs1bxYpPwUEF7qLQ4aCBaFpgzBkZcfqe6BhbVj9Sv 0JdZuPzWnM7pK0wPZU0ptb/GuMmVmi2I1dvfLq4M6gzD0czSk26It3AfDX0cXvwvMtY1 wJo0F0NqnWEaBpvytJ5KYWZAbvXsCS3dfSVZ/QqgM8FxXEJBe2EBOxwXo7omAg2yHeYf 1GeN0geOM3sZBHxcy+vO4gsqGm1IQ6qmuNAAe/HafYTNQiSqAPXUJuWywQz6N7kS0uQ/ A96RqiOfUGoPsBvI1GwOskh2FXsLzsIpby8iwGhBcWJa7umitaSKET+52A2rSI6+7YCi uiPg== X-Forwarded-Encrypted: i=1; AJvYcCWe8qrlq9ui45vKt8UkFVb44efva9wkjhFALNJOJbwYcNcgt4m8tcC93/TH15BQR2NC3K6HXd/DGO4HpDo=@vger.kernel.org X-Gm-Message-State: AOJu0YxbpbjlV0oL410edDv98RG24DthEuGl1tg/koVUfmXy2xpKLJ/q qctr85vFUQCmu9Tut37aB32S+xtcAcyZGieOSolhUeJTBnAMq65BPtpG2Oj5M+xrFp3xuYw4n0F UxbErG2cUbg== X-Google-Smtp-Source: AGHT+IHZlMGTcKX5RZ/uPw4+acv8n0aHStFuR6vrPyvpA6CiIDxxzLWRCjz5dgJEeQYAtTRRHyrT3C1VMcyAzA== X-Received: from wmbea7.prod.google.com ([2002:a05:600c:6747:b0:43c:f8e5:6033]) (user=jackmanb job=prod-delivery.src-stubby-dispatcher) by 2002:a05:600c:3586:b0:43c:ec4c:25b1 with SMTP id 5b1f17b1804b1-43cec4c26d2mr91373805e9.23.1741699118100; Tue, 11 Mar 2025 06:18:38 -0700 (PDT) Date: Tue, 11 Mar 2025 13:18:21 +0000 In-Reply-To: <20250311-mm-selftests-v4-0-dec210a658f5@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250311-mm-selftests-v4-0-dec210a658f5@google.com> X-Mailer: b4 0.14.2 Message-ID: <20250311-mm-selftests-v4-10-dec210a658f5@google.com> Subject: [PATCH v4 10/12] selftests/mm: Ensure uffd-wp-mremap gets pages of each size From: Brendan Jackman To: Lorenzo Stoakes , Andrew Morton , Shuah Khan Cc: Dev Jain , linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, Brendan Jackman Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable This test allocates a page of every available size and doesn't have any SKIP logic if the allocation fails. So, ensure it's available and skip the test if we can't do so. Signed-off-by: Brendan Jackman --- tools/testing/selftests/mm/run_vmtests.sh | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/mm/run_vmtests.sh b/tools/testing/self= tests/mm/run_vmtests.sh index 0f9fe757c3320a6551e39b6d4552fd4874b0bf43..e86ef8cb37d00e572be8cf0ea9c= c8246d4eecd7e 100755 --- a/tools/testing/selftests/mm/run_vmtests.sh +++ b/tools/testing/selftests/mm/run_vmtests.sh @@ -309,9 +309,30 @@ CATEGORY=3D"userfaultfd" run_test ${uffd_stress_bin} h= ugetlb "$half_ufd_size_MB" 3 CATEGORY=3D"userfaultfd" run_test ${uffd_stress_bin} hugetlb-private "$hal= f_ufd_size_MB" 32 CATEGORY=3D"userfaultfd" run_test ${uffd_stress_bin} shmem 20 16 CATEGORY=3D"userfaultfd" run_test ${uffd_stress_bin} shmem-private 20 16 -CATEGORY=3D"userfaultfd" run_test ./uffd-wp-mremap +# uffd-wp-mremap requires at least one page of each size. +have_all_size_hugepgs=3Dtrue +declare -A nr_size_hugepgs +for f in /sys/kernel/mm/hugepages/**/nr_hugepages; do + old=3D$(cat $f) + nr_size_hugepgs["$f"]=3D"$old" + if [ "$old" =3D=3D 0 ]; then + echo 1 > "$f" + fi + if [ $(cat "$f") =3D=3D 0 ]; then + have_all_size_hugepgs=3Dfalse + break + fi +done +if $have_all_size_hugepgs; then + CATEGORY=3D"userfaultfd" run_test ./uffd-wp-mremap +else + echo "# SKIP ./uffd-wp-mremap" +fi =20 #cleanup +for f in "${!nr_size_hugepgs[@]}"; do + echo "${nr_size_hugepgs["$f"]}" > "$f" +done echo "$nr_hugepgs" > /proc/sys/vm/nr_hugepages =20 CATEGORY=3D"compaction" run_test ./compaction_test --=20 2.49.0.rc0.332.g42c0ae87b1-goog