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 2F577CD4840 for ; Mon, 11 May 2026 16:33:15 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 956816B0121; Mon, 11 May 2026 12:33:14 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 906876B0123; Mon, 11 May 2026 12:33:14 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 7F5A86B0124; Mon, 11 May 2026 12:33:14 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id 6AE2A6B0121 for ; Mon, 11 May 2026 12:33:14 -0400 (EDT) Received: from smtpin25.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay02.hostedemail.com (Postfix) with ESMTP id 283781201C5 for ; Mon, 11 May 2026 16:33:14 +0000 (UTC) X-FDA: 84755683908.25.5300B00 Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf15.hostedemail.com (Postfix) with ESMTP id 86D38A0002 for ; Mon, 11 May 2026 16:33:12 +0000 (UTC) Authentication-Results: imf15.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=RvdcrMVx; spf=pass (imf15.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=1778517192; 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=eYwQDqpAESu4HdKpIHMpY+xmm/eBm6IA2j3HFZZjzIk=; b=cccQknSLjBsCDLDYg1iuFfb89Y10LH8f0mci7fP2HaKwgnZk9Y0PWjRSd/vIM/T7dB0b95 itI8j/QrjU7zmYd1sNCVSegHiXAgg6Vq0oYVnHaX4TCfnYWg1RQPkeRz4oAXwgxz4sbVy7 RDPn0LoFjVPLnDXhFo4OZeY/Eb+Yq98= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1778517192; a=rsa-sha256; cv=none; b=iTtiAX1WKV9tOuOCiszXEgM17pP8TA0R/cZUg3mO6CbBuy8Xha7n854Gt4MFeTDNfS2IOM IomStqiyJohXQQXTxZjbCXhlebSa4Vt0z5bUocnfjcBPrlxHHuw7Lxr0WsF9xtVKZsaRIA 5mdXcZJxVLCcQttDhmhaelAHCNONJ7w= ARC-Authentication-Results: i=1; imf15.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=RvdcrMVx; spf=pass (imf15.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 18DCE60123; Mon, 11 May 2026 16:33:12 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BEB2BC2BCFB; Mon, 11 May 2026 16:33:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1778517191; bh=HSX9kg2IS/ubAXfSb84boVRWxEKf4aiyTi8nFn1g0Rg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RvdcrMVxgTlD0DLApCar0Phrt7oyJOPve7nnS6YFXtQJvp6pDdFEBBDqOkpaGriMX MOsqY29mubuJ7lbNZWYNpsjvJ+BEmiXitkC+yLfg/uCkG0QMnwd04wHlSzyLFrVHgc e+516ign+YOGQ4MZ2ZB/YhnWQrx9rSfRBSum2+YoFc/TgS5DQ0g06FjJ1IbMiJ/LaD AaH9axL3mRkwBP/Zun5odG3Ndo9n59idae/On20pAQoiad8uLCgMFnm471z7CG/NCa W9aaJ64kZw/5ifkij2S8v8snkmv7NSbsirSx2FUwne1Ng2R1jjugfI7qz9Km7eg7Gc wWoVDysxchadQ== 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 40/55] selftests/mm: hugetlb-mmap: add setup of HugeTLB pages Date: Mon, 11 May 2026 19:28:24 +0300 Message-ID: <20260511162840.375890-41-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-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 86D38A0002 X-Rspam-User: X-Stat-Signature: 386bereg8c7dx8xg4hecmsa86ce9sy7a X-HE-Tag: 1778517192-882940 X-HE-Meta: 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 Nen1qe1Z s8BLLIhqA9Rs0WsS1T5unHvCqUOAe4y9bssnZ16mvH9iyfrFGCHNBSA/k/9zZOaLO73I8QGT4Ly1BH4/3YOC151T2ZGy8exAMhS8ElInb8fkfKoumnxdYkjnjpH2OTN2v2O44uJI3pOPGL9t3cZLd2Euj8jZABWCulX+YwMAF4rg+kTm5IQSeBG2cK1yE2Z/bisGdHzUCV40J6GJAML1aG/MNhmF681X/jjE5YuoGrJQFZldmcMPbub5yZYLoyAn/J6qc4LCZGxPOnaimPO18+AfBPymRgJi9NdFEuvHCwQcwPPkTIqe1jW1scg== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: From: "Mike Rapoport (Microsoft)" hugetlb-mmap test fails 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. Reviewed-by: Luiz Capitulino Tested-by: Luiz Capitulino Tested-by: Sarthak Sharma Signed-off-by: Mike Rapoport (Microsoft) --- tools/testing/selftests/mm/hugetlb-mmap.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/tools/testing/selftests/mm/hugetlb-mmap.c b/tools/testing/selftests/mm/hugetlb-mmap.c index 395be5d0dc1a..0f2aad1b7dbd 100644 --- a/tools/testing/selftests/mm/hugetlb-mmap.c +++ b/tools/testing/selftests/mm/hugetlb-mmap.c @@ -105,28 +105,35 @@ int main(int argc, char **argv) { size_t hugepage_size; size_t length = LENGTH; - int shift = 0; + int shift = 0, nr; ksft_print_header(); - ksft_set_plan(2); if (argc > 1) length = atol(argv[1]) << 20; if (argc > 2) shift = atoi(argv[2]); + hugetlb_save_settings(); if (shift) { hugepage_size = (1UL << shift); ksft_print_msg("%lu kB hugepages\n", 1UL << (shift - 10)); } else { hugepage_size = default_huge_page_size(); + if (!hugepage_size) + ksft_exit_skip("Could not detect default hugetlb page size."); ksft_print_msg("Default size hugepages (%lu kB)\n", hugepage_size >> 10); } /* munmap will fail if the length is not page aligned */ - if (hugepage_size > length) - length = hugepage_size; + length = (length + hugepage_size - 1) & ~(hugepage_size - 1); + nr = length / hugepage_size; + + hugetlb_set_nr_pages(hugepage_size, nr); + if (hugetlb_free_pages(hugepage_size) < nr) + ksft_exit_skip("Not enough %lu Kb pages\n", hugepage_size >> 10); + ksft_set_plan(2); ksft_print_msg("Mapping %lu Mbytes\n", (unsigned long)length >> 20); test_anon_mmap(length, shift); -- 2.53.0