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 341C4F99C79 for ; Sat, 18 Apr 2026 11:00:17 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 993A76B028A; Sat, 18 Apr 2026 07:00:16 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 96A776B028C; Sat, 18 Apr 2026 07:00:16 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 881566B028D; Sat, 18 Apr 2026 07:00:16 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id 71F406B028A for ; Sat, 18 Apr 2026 07:00:16 -0400 (EDT) Received: from smtpin02.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay07.hostedemail.com (Postfix) with ESMTP id 390991604C7 for ; Sat, 18 Apr 2026 11:00:16 +0000 (UTC) X-FDA: 84671382432.02.EB90974 Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf06.hostedemail.com (Postfix) with ESMTP id 85E50180015 for ; Sat, 18 Apr 2026 11:00:14 +0000 (UTC) Authentication-Results: imf06.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=TaDoVv14; spf=pass (imf06.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=1776510014; 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=ocTnSYy1KxNgPzpQMQrdurE88Vv7eYufvdv32EmtaKA=; b=2OfBRVvOvLPFV3CHVVgM78NchZYSm0P3F1pzmU4GPdW8xzE7UkEnbghJO2cET/SZGFAAG3 2zvIMv2j5PwOUojs8UsFQ9w/n06zOHJQbz85GypSulb6NyDaLvL/806sWkiZtfNocUN3bY QITulHfYXPNLMDHQ/a4IMpaBZFhjzms= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1776510014; a=rsa-sha256; cv=none; b=sMK1J4xpnAU8N7gAKAndVfZMbgcDkmrA+4N9PShuNHOXPBKNArHhXuug4bCfZgzD6ilT5u bPWiQh2L9b4EeP5uhObCoX1YKvU6eX/zqrIr0J1jVcdGIHQvWos8My6zNHijJXdO+T4JTP AZ/Mw0j0wb0oa6E6K4Aaxm3SoplmcRk= ARC-Authentication-Results: i=1; imf06.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=TaDoVv14; spf=pass (imf06.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 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 1212260145; Sat, 18 Apr 2026 11:00:14 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1F379C4AF09; Sat, 18 Apr 2026 11:00:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1776510013; bh=vCnjdXeTkcOgDXKHH4wTrbHB2ThXfy9k351DRlaWe10=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TaDoVv14/8Fah2uXDA/u44pgKtLa4mA4Sz0dc+FeGC4gJDl6Ip7n3MDOG4GbJMz0i PKCgi0xA/IeVFb58q/skqU3DoesdMBxv7TsLKclXAAM8yRTVKXsA6bztW1QoA/jdZh IOE8k3WuMdevXQv5R0CH9P8VCGGUvytNxHSfd4BmnsGfLlk2gGX1iqHOpDLQES+Ek7 HwbBDuAE2zYLlfI/GhMg74R95NcMHEkR5CQaHzYuVhgzaJtp+c3kV+AoyxdBaUnje4 RjBQDpT2WizzMjgMW9vEESm821VjqCnoyv519l3boWIu2AkPqydT9BMImcMkrWvZuz p75reaaiMpOmg== 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 43/53] selftests/mm: migration: add setup of HugeTLB pages Date: Sat, 18 Apr 2026 13:55:28 +0300 Message-ID: <20260418105539.1261536-44-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: qy1c747h5t3queswkosjtj5z44yp3xew X-Rspam-User: X-Rspamd-Queue-Id: 85E50180015 X-Rspamd-Server: rspam05 X-HE-Tag: 1776510014-357522 X-HE-Meta: U2FsdGVkX1+sJGuFGQWwApjRFMnYwH3lmzUim7/XyiFjjQ1BS2wojVpEj6RxmPxnK04ySxXbRA44LXveV+wSPg7NKmOS1kh1jOLM/PX+GtUmO0UMQlAt1gyudViOOXFlAEYRgIjhjEquyIFbnGCopriFymRY1nBSLd+K7mipKGcBXB7FSOFG52NFClhWRjbEBsznIO/QJfjzBtWvaQ4wdth3X3FSazJHxQCejOv5Hc50RN+QhvFaliDye7dWD5UbYIiVPNCooDrwIB7FbfeEtjQTu/uUd9w1b/cBaaxZK1hScPvZcH3Aq8B+7Vd8Gg1nXhL+8mXhNZBw8+87apRZ1cXDPrty6DVc2lw9tyjv64DMJirfIFZAgufRpa+iqTwQym4Zy5q7qB5I3MzAOIw9Emx653qy6eYoJxUVFgGvn68hxZJ0g7nUqZp+UGQ36LHi4LQV37OasljhLZJtFoCc19HA5Qi9g51U6O0hYZmtiIZpOncUQlnKBNTrVxNjo+DgzFz3A7SXAKB61sDY59akUNX/068ZEomrBTwcQ+wIiZUJBx7ZUSUJHn4nKxfb66aqmb0THBUM0bFXjyIpUTppYB+M016F2UdX4Hyx39DxIYOg723+QK0RWNFv81/TMcxh4n7r5uITt6mEZa0YECs/PVp+vwmdYe90C5yQK/oOnp2vGlFJ5RV4boP0Pc96ttuwRLRcHaD9ubF9/XSCxcKZ+idaridR1PgD/JDtuAhynlNClx4nSBwtiPL11hNNkjVnSzsK26moPZnk1yJxpaOm8ZDAFnmwakU67Xcu278NBYT6Kd3wTwcszyiVJgiyce83C6RgbPDutUvovRLOC34KOLqthulY/KfDo9PqQl+tJ8rA/R1qdQJ1SlzURGLxyo8nxSyU4vwna0bx48AdZ8dyWESVZhw6qWT7tvsX6YU04DnFjiiXVJbVg/EPtieYjYD6zonUFwe8+WZMvap4X2K RAJJ6pWY hfn4EymzGbWbZI9/vefROYUwe7mGNSSlpi0bEvSaD0XduvvQCHNd2f0vHYJ6lDisCr63SAJzDDcKoZDX+MPXrQ7b5uPJIXSvQ19eLX9oyWOPdCbwouFl+2Bd0oUKX80z9AYaG2+NKPMyea0xK1PLoxEUL2DvNmoLvJn80Mp1foOdV9ixzoBLSEPbxhZqaXlFVFARuJSwTcbGreP5x5x11rwzLLvvQCa7VRNrD94EiX3U6FcY= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: From: "Mike Rapoport (Microsoft)" migration 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. Since kselftest_harness runs fixture setup and the tests in child processes, use HUGETLB_SETUP_DEFAULT_PAGES() that defines a constructor that runs in the main process and add verification that there are enough free huge pages to the tests that use them. Signed-off-by: Mike Rapoport (Microsoft) --- tools/testing/selftests/mm/migration.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/tools/testing/selftests/mm/migration.c b/tools/testing/selftests/mm/migration.c index ccf42002ce86..61fb00953f83 100644 --- a/tools/testing/selftests/mm/migration.c +++ b/tools/testing/selftests/mm/migration.c @@ -23,6 +23,8 @@ #define MAX_RETRIES 100 #define ALIGN(x, a) (((x) + (a - 1)) & (~((a) - 1))) +HUGETLB_SETUP_DEFAULT_PAGES(1) + FIXTURE(migration) { pthread_t *threads; @@ -277,6 +279,9 @@ TEST_F_TIMEOUT(migration, private_anon_htlb, 2*RUNTIME) if (!hugepage_size) SKIP(return, "Reading HugeTLB pagesize failed\n"); + if (hugetlb_free_default_pages() < 1) + SKIP(return, "Not enough huge pages\n"); + ptr = mmap(NULL, hugepage_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB, -1, 0); ASSERT_NE(ptr, MAP_FAILED); @@ -308,6 +313,9 @@ TEST_F_TIMEOUT(migration, shared_anon_htlb, 2*RUNTIME) if (!hugepage_size) SKIP(return, "Reading HugeTLB pagesize failed\n"); + if (hugetlb_free_default_pages() < 1) + SKIP(return, "Not enough huge pages\n"); + ptr = mmap(NULL, hugepage_size, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS | MAP_HUGETLB, -1, 0); ASSERT_NE(ptr, MAP_FAILED); -- 2.53.0