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 44089CD37BE for ; Mon, 11 May 2026 16:32:55 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id A18CE6B011A; Mon, 11 May 2026 12:32:54 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 9A2856B011C; Mon, 11 May 2026 12:32:54 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 891AC6B011F; Mon, 11 May 2026 12:32:54 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id 736056B011A for ; Mon, 11 May 2026 12:32:54 -0400 (EDT) Received: from smtpin18.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay02.hostedemail.com (Postfix) with ESMTP id 3A33F1201C5 for ; Mon, 11 May 2026 16:32:54 +0000 (UTC) X-FDA: 84755683068.18.168C3BC Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf03.hostedemail.com (Postfix) with ESMTP id 9D8A120005 for ; Mon, 11 May 2026 16:32:52 +0000 (UTC) Authentication-Results: imf03.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b="NORjY/Q3"; spf=pass (imf03.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=1778517172; 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=j5hZ2ccxW/tRptbdwqnfjppjmEUHYvfgti5WHj1vI8w=; b=YoOJCxZIxyMR06+b9XkCR+YS+dM7YUGHaOeEBe4QLxC2FMlUHMaPjUpaIYsk+6Fidwu51L 5zugiksHnbAr7/5DCNTmpebYbUWFRlC3vfzHIVyNqTQxvXBiBVtBcX3oW0f9D0XYrQLN1Q ONWiv93MTvWfJNHWZY4MNe65Gp9tfjw= ARC-Authentication-Results: i=1; imf03.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b="NORjY/Q3"; spf=pass (imf03.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=1778517172; a=rsa-sha256; cv=none; b=aNpzTBFTlx1B3b//8vztbnO5C0r6ftZyAZ2GiO98+EDlDKOk2/bvILyViqwzUflYVPhWWk NvSDn83zSKdylBZAXQxq7imv9zdUelJE0Dm3eo86pIGjzevw/4rXaG71NyEGYjWL449Er2 kLgSUBxiMFHSxsb2jWHR8LfN8igFZ8Q= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 135AF600CB; Mon, 11 May 2026 16:32:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A6EFCC2BCC9; Mon, 11 May 2026 16:32:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1778517171; bh=oVx6caxujs0GJm4PzOdNxdItHvCSRDnJxA7+su/xLqo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NORjY/Q3jZtVtWoKKLRQSytsUZMG+fZhPSKqMQZfxmzwgTDZj78TcAmXNYsmeZkCF Q83S80IsISqzjkewq6Ym6dKdnaoJR6fLThQrJj+MfEar5Dye2fgLxYgfKVxrGXnz+R ctTYWKe0Sha2ssJRMWbRFS0/K0Ob49+jk2L2SsQUvuWHftNc1fEjFh5kGxTXG158cY qT/yZilUN0qIunR0cPbI84P9HtOe59sEswxejzkn5SR6MT67EoC+cBLJURbxlMksMj t+aSeMyf4qvmvbOLtabGeHdrnfrtD3hq2Qr+sFYMqZ2MVqc+WBjm5Uiu+Ft9qV3Z7c 4FsmWCHSCHb5g== 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 37/55] selftests/mm: hugetlb_fault_after_madv: add setup of HugeTLB pages Date: Mon, 11 May 2026 19:28:21 +0300 Message-ID: <20260511162840.375890-38-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-Stat-Signature: atxydy6um7dr3zugjjre9g5hejwc9jsc X-Rspamd-Queue-Id: 9D8A120005 X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1778517172-439114 X-HE-Meta: U2FsdGVkX1/uh/Cianc8wxx9P0itgC+2oxe937/KP7l2zPpN9mnTPGDNqZJcbPR469EDS7byB00ehXEvZ/4/dg5/lkYkw1EDB2ej0kfGdVNcFksbGit/lmSJwtIPaDvj0cdaqyHmwNUQDL2nUyi6zceuPIGJ/vPdCY0pBNMrBxxeEfEWtpHK27lKH4oPhqKBWVz34Ulqp4tKB/MmgGNBq0ldSdDyX8J/wgyBEd8l9lgiydLraPQQ0pOkiNaoXoM8+IkMfteMUsFk3XNHnohAfc1H/NSK9L31f/+K5Fb5u8IOjxUzpw0hVsP/3K7+Oo+1pn/H6aI61ruuYdJDzeIOmougSiIopvxy69C8jRYeEw9tVaHtTMP3Ae3miuRyfnbQUPVkt8XZ8heZqMHuXM47T3KBYkWMbb6td4nfphJyqGLqJEkVAzS3vB4fIpjOPcZicRYvAOh8Dl8yZvoJaiHJZUcVA1xi8TPRmK4/a81vVTxw/yQXeJI8L0GRB2Sh82ujqKSBJwfN+e67Z051m6j0o+pOpSxsUNpwgeSDu42cfpJcq0ck2nVAxhgJDGDEuWKWadvxiN164ftgmdebxtfeGsVtuLmbMdvkxHy7LQMh1vdsu8FKq8oVPKoiOru8gEkP+skWrc2EijY5rE9c2BcJQvvUI1q0lluKeYgVFjsi0Lx/6V7vpe1sT/O0krN1QR4Q7rRMBYx7/rHssfjFWQPKieC2jmDoQPpTOJoSaNA/JBqdcTKmGvt1h40kdfO8LtNjHdxUieJ7MKCq0eFOuKGMTz6anSxzCWnvglSIyD5hVV1jMOh8H9oHH8U+5ND0vjF6j+KycVLbBqv8fgY6fWYlDasYZK0scgQ5r9VwRALfkS6TkqGxo85oaCidPyKGStzA4IhZg0Cx5wE0kJlHwGgs9HiiFET8TDWoEyPXtcWbaHSaiAMqNG/+ihE8Nssg8Bhybo421sH9BgpBalvnmQD ena3uJr5 1fjgd+WsRV9ZDAAqVp+DII7X/2L1OYNaBlmr+kvAhhckW5EA1XtPcBTlWYFYZX7EzPZ8DMDJJTlNxHXTLD7WHQvxDKsk7nUEBjzLr7ay2dqoNbuSvg/9eR6k+/mInGVNejDzUXF8N5ze9X0eUPG7Ayy2mn/bYl5U6hfCJP96Ky7lB5htuYKpcpjkA1UO5UxF04WFI8eN0FKzOw59eytRFlbUwsjr40cLKfG5koL5IZQr6apJbVjr4fDOWVk1sQzjeZXrebU2Tm9eBbhQK8vTEuEgQ5zDVT0raKaFhRNBsVfRkjfNqmx7m5s8p1C3b3WQrLre/lXKaFkxxIVQYmw5cdG3EMFTenF91lNqmAemyBR4K26w= 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_fault_after_madv test skips testing 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/hugetlb_fault_after_madv.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/tools/testing/selftests/mm/hugetlb_fault_after_madv.c b/tools/testing/selftests/mm/hugetlb_fault_after_madv.c index c718dd065d53..2dc158054f66 100644 --- a/tools/testing/selftests/mm/hugetlb_fault_after_madv.c +++ b/tools/testing/selftests/mm/hugetlb_fault_after_madv.c @@ -54,7 +54,6 @@ void *madv(void *unused) int main(void) { - unsigned long free_hugepages; pthread_t thread1, thread2; /* * On kernel 6.4, we are able to reproduce the problem with ~1000 @@ -78,11 +77,8 @@ int main(void) ksft_print_msg("[INFO] detected default hugetlb page size: %zu KiB\n", huge_page_size / 1024); - free_hugepages = hugetlb_free_default_pages(); - if (free_hugepages != 1) { - ksft_exit_skip("This test needs one and only one page to execute. Got %lu\n", - free_hugepages); - } + if (!hugetlb_setup_default(1)) + ksft_exit_skip("Not enough HugeTLB pages\n"); while (max--) { huge_ptr = mmap(NULL, huge_page_size, PROT_READ | PROT_WRITE, -- 2.53.0