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 EC0E3F99C73 for ; Sat, 18 Apr 2026 11:00:41 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 637D16B0292; Sat, 18 Apr 2026 07:00:41 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 60F516B0294; Sat, 18 Apr 2026 07:00:41 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 525AF6B0295; Sat, 18 Apr 2026 07:00:41 -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 408F86B0292 for ; Sat, 18 Apr 2026 07:00:41 -0400 (EDT) Received: from smtpin01.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay05.hostedemail.com (Postfix) with ESMTP id 0A9EF58EFD for ; Sat, 18 Apr 2026 11:00:41 +0000 (UTC) X-FDA: 84671383482.01.E0407F4 Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf09.hostedemail.com (Postfix) with ESMTP id 4ADD9140012 for ; Sat, 18 Apr 2026 11:00:39 +0000 (UTC) Authentication-Results: imf09.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=MROAtTWD; spf=pass (imf09.hostedemail.com: domain of rppt@kernel.org designates 172.234.252.31 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=1776510039; 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=IfwxdIULrvPYbCaT0rC7nJp3cgiUYWThgSOqSi8ytkA=; b=6bZ1ZsWY5ygbXeJB8fe9St8C9jaspM1xYko1bs7xDOXvXqcoadn9oD0qmGv62+l3NcUapc 96auG5kKi7+9OC8LoKuA6k3Hkfcf5ZwYkldSS3sRJUxKfk4BA8w5qm0vQyIu1T0EHUI9ne Z+QCd7CsffdqvlYSm36xA7sIY4+S4nY= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1776510039; a=rsa-sha256; cv=none; b=wiAlJJrxJI3EwwBiLXltcnbEb4/CDawt06vfQ/dX2EBworMy42dN9qfuX7p8ndSi/KfzJT rhpw8WPlnq5CGmgMymeNoodINHQ94/qUJ8yiQfY3/I6Hc4W0itkjtJrEp9EfedogT5gA+Z uPGR0mKM6Ic4cc4nGZy4FHKmSJ8LKVo= ARC-Authentication-Results: i=1; imf09.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=MROAtTWD; spf=pass (imf09.hostedemail.com: domain of rppt@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=rppt@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 74F6F417D1; Sat, 18 Apr 2026 11:00:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id ACA89C19424; Sat, 18 Apr 2026 11:00:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1776510038; bh=n2KgdfeDkv6qGICkBg3Vwdx+MRmhbjeNlFxUjnQTB8E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MROAtTWDIn1OZ96pLvy5zn9VfxI6UIfevlt/DDeu7Tpiq1FnWv1gUhNMEO3WpqxOW +Vumc1VsrrwZ+wfVewh1G10utmvathISpPHN/6QsKDVpJnxoxc5OSRjgefcMXa9JXX MsTXQ94e4Pkblg/piVHQtpl9m5P41Za8ddya1n/BaX9fanDqP4iDndRW93o5hImTmA cSC8Exfg3F1szGf+XvWKtwduZg3h4QVhdhX503+aUPPZi+8tQbDCdJZit+bItSiKZq rU2Qli/D+Mnt1X4taIogLGpLz0ifacUiSgwiJFozfz+LT6cpoXR6vkRVgTS6PO/jZ2 ZZlUAwnb3A/fQ== 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 , Leon Romanovsky , Lorenzo Stoakes , 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 v2 47/53] selftests/mm: uffd-stress: use hugetlb_save and alloc huge pages Date: Sat, 18 Apr 2026 13:55:32 +0300 Message-ID: <20260418105539.1261536-48-rppt@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260418105539.1261536-1-rppt@kernel.org> References: <20260418105539.1261536-1-rppt@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: 8g5dnxykhrampaatr11qayom5byxuica X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 4ADD9140012 X-Rspam-User: X-HE-Tag: 1776510039-87616 X-HE-Meta: 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 q0MF0IFm Pj8xMnciMQ+Eo6Xht4S4BSkwdwdZw+ZibYcgRMXLmElPTdkEq3IEi9baabpjC1FYjoOJLL3I6XQQ6WUsSA5p/RnnmpsXqiSihxfAS9CQVVRHx/6gLSuShn261CR4GA53vHBJzWALImDxBliatMbf82dtLj0C0w8nfNl33AR0mQxdPSgk7JTWkoAG9WIGSEzH53S3Fawz5WLOdCI3x4tZiIOjJLZS/LZ0gBcsZ4mTgCsL8bnVwW+p7sNernobUE1uepzU+8jt70jL4rI/6xQtWhL0AUnJ7xhV2/B1y 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. 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 7e37cf3d27f6..9693d042f16f 100644 --- a/tools/testing/selftests/mm/uffd-stress.c +++ b/tools/testing/selftests/mm/uffd-stress.c @@ -479,9 +479,12 @@ 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