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 E4004CD37BE for ; Mon, 11 May 2026 16:34:13 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 5612F6B0133; Mon, 11 May 2026 12:34:13 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 510E26B0134; Mon, 11 May 2026 12:34:13 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3FFFD6B0135; Mon, 11 May 2026 12:34:13 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id 2C06D6B0133 for ; Mon, 11 May 2026 12:34:13 -0400 (EDT) Received: from smtpin06.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay10.hostedemail.com (Postfix) with ESMTP id E42CAC0A7E for ; Mon, 11 May 2026 16:34:12 +0000 (UTC) X-FDA: 84755686344.06.2A82B15 Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf19.hostedemail.com (Postfix) with ESMTP id 652121A0019 for ; Mon, 11 May 2026 16:34:11 +0000 (UTC) Authentication-Results: imf19.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=lM+7PjhX; spf=pass (imf19.hostedemail.com: domain of rppt@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=rppt@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1778517251; 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:in-reply-to:references:references:dkim-signature; bh=ueoixsrAO4+WxOpYwADRosy+SnERZ+evkoQJ6Iz1k58=; b=NO0InconLfpM8yYJWjNOmysyE8oBabdO/emZZY33mcqL3yhWW3/EcNqEeJy9w1SF2vg2JK nISASeBC/OcTjlO86V3Tr/pCKlArTOE291kLWMGUZjUbrXeNafhQ5oSoV8I5yhP02nF7bD VvZ39R4inq3NsJomk5LiCl850w34nCU= ARC-Authentication-Results: i=1; imf19.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=lM+7PjhX; spf=pass (imf19.hostedemail.com: domain of rppt@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=rppt@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1778517251; a=rsa-sha256; cv=none; b=FoTr2ijn99ovnteo1LMCtpQ8lN2pxnKmYn4h7ynuNsMgSDpqn4I6axIKZ1DpGRXrA8UmmR mR9SbLtmeV4nKXI2ay3YlF4HSi2SiDET5UUqDpZ+kPIClkYzr4vrlp6Xg+LwdfSAJbf3Sb CK4Q1nouNyPhJ7nMXKykSmkTjNQcVaU= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id C037D60103; Mon, 11 May 2026 16:34:10 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 761D8C2BCB0; Mon, 11 May 2026 16:34:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1778517250; bh=yChvoRymHflrXb3JZQRkvSGXKQqYnoAHN1ddQ8bY1D4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lM+7PjhX3EXRh7KJtDecSDPvtHHXxcRwoXr7wlOrINXw0adosyLgo0eTTxlegEGrD BGUmH/pFo3BKKC7sAaiFAWMPE6D4fpWQ1442O5+Nrx7gPdboA/mqXtfx+tCE6oc8i+ f1JRwQshJYRGpobjICsnD85mtNwWNm1swVOEYT2VkbtkBzpIfG44E7Mt7V+DlLOpmg ZXvE4rdDNHDKxsGFe9RlEgqipz/akUQfj+j1g9Dx6eUo0jGnRNsu21aZrJDqV2k8NR 9ebUqLBWIgUHtSebSnVMaQCx+cr0Ljcs6cJQqfbQZcQ6zn2vz9FQlJhgzErLBXdMr+ m01xeNyHx1pzw== From: Mike Rapoport To: Andrew Morton , David Hildenbrand Cc: Baolin Wang , Barry Song , Dev Jain , Donet Tom , Jason Gunthorpe , John Hubbard , "Liam R. Howlett" , Lance Yang , Li Wang , Leon Romanovsky , Lorenzo Stoakes , Luiz Capitulino , Mark Brown , Michal Hocko , Mike Rapoport , Nico Pache , Peter Xu , Ryan Roberts , Sarthak Sharma , Shuah Khan , Suren Baghdasaryan , Vlastimil Babka , Zi Yan , linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH v4 49/55] selftests/mm: uffd-stress: use hugetlb_save and alloc huge pages Date: Mon, 11 May 2026 19:28:33 +0300 Message-ID: <20260511162840.375890-50-rppt@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260511162840.375890-1-rppt@kernel.org> References: <20260511162840.375890-1-rppt@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 652121A0019 X-Stat-Signature: 4hcxbzjwn9hz6xiuokthcc789exh3coa X-HE-Tag: 1778517251-779888 X-HE-Meta: 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 Z6sDpINP bqHP3s/HzyCUUJ17pooWnA9ywFxy64XXahCNsnc0B8zKOZkfT1S8d3FqucuWAqAiGycHyqG4dRhUM+PHDeXzJkt/HyZik0AP1nEZF1JXefAUSHkbpu+7sVHB//8X1VTTtkszZ5JsC5gpBQzb0X0V6o5HumkpKxbvg3xna2RYnRRcB4STzbywhZw3vdzL54RFWLonIuo5drYzdUFT/teUW5jcnJfM8NsfENtaAFd4Jt1V1Ux2A/EqhrwXPbdUwv+rdh5vdW470VEnclg1+VmKtf336IaE3Dqd7YLMD03//oqxK8VNRKK9tziC/Jr1Y+cLKQjJt+JO9vAwmT+YSfoUgi4iSQddqH1ED4ftpLHCJyhrRwt8= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: From: "Mike Rapoport (Microsoft)" uffd-stress skips HugeTLB tests if there are no free huge pages prepared by a wrapper script. Add setup of HugeTLB pages to the test and make sure that the original settings are restored on the test exit. Tested-by: Luiz Capitulino Tested-by: Sarthak Sharma Signed-off-by: Mike Rapoport (Microsoft) --- tools/testing/selftests/mm/uffd-stress.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/mm/uffd-stress.c b/tools/testing/selftests/mm/uffd-stress.c index 7c719d789249..43cc79590136 100644 --- a/tools/testing/selftests/mm/uffd-stress.c +++ b/tools/testing/selftests/mm/uffd-stress.c @@ -480,9 +480,12 @@ int main(int argc, char **argv) * Ensure nr_parallel - 1 hugepages on top of that to account * for racy extra reservation of hugepages. */ - if (gopts->test_type == TEST_HUGETLB && - hugetlb_free_default_pages() < 2 * (bytes / gopts->page_size) + gopts->nr_parallel - 1) - ksft_exit_skip("Skipping userfaultfd... not enough hugepages\n"); + if (gopts->test_type == TEST_HUGETLB) { + unsigned long nr = 2 * (bytes / gopts->page_size) + gopts->nr_parallel - 1; + + if (!hugetlb_setup_default(nr)) + ksft_exit_skip("Skipping userfaultfd... not enough hugepages\n"); + } gopts->nr_pages_per_cpu = bytes / gopts->page_size / gopts->nr_parallel; if (!gopts->nr_pages_per_cpu) { -- 2.53.0