From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7CF2934E75E; Tue, 28 Apr 2026 20:46:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777409208; cv=none; b=QAttNaIoMFdwSQhmqAt6eq7uO6EDRwvY2CPQScheoB5J9fBBrEmkRCPcndZV/9eFFHl1w/6w6bxH4R78P03TO1eBhUXpYjJhdaZKqEe2MFvaLx3TEMhtt+FAEoa4fWPZbCqVHhRzqEWJQ46qtGdRsf/fmBf77n0tQ57CQr8htZk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777409208; c=relaxed/simple; bh=ib9LXsJztlT6AS3f5wMdXHDwOYMXkAdeN957x1qT4BE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=hk3YZa1AUHreN9b/64qE15tO7O+HjlBqfAkSzDfXFnETCZuX/3f21hfeG3Bj7NDnhfwsACYMge/SdGdybmb8UqeuOaSE0NNbs6mdfUV07ungT8vEmS5T398KuWQhMm1hddBmWs8GfG9w63GxiFcXLwhr8CG3be0jLKv1jmr4ato= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=PRU3DXRA; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="PRU3DXRA" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4E4D5C2BCAF; Tue, 28 Apr 2026 20:46:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1777409208; bh=ib9LXsJztlT6AS3f5wMdXHDwOYMXkAdeN957x1qT4BE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PRU3DXRA2mjPTJz0dlKDBKxbR8oyutEeJ5qREI7hgZj7tTUBuFefszFirMwxHaZtA wcQno4kZaVZxipoEstFNRT5Kx6+fsqYyjTZeXq2r+uZZ/p9PwSFe7IQwRuDrRPkyHj 3k7s3R1pNVsDvBBxWbiqgFyt5/iafBc8nmxOGuREw7X1QZ1ibJ4rfhmCpwKxnJFocc Gib7jpuSTVpA7GOrnpeS/LZ2KSmKYszWeZxfeWWNsvLzC07UiHqaygD+5A3xv78Te+ ni1bxIYZndp3tm7D4+ge+z8JMBNAUIcSn0XMAYNfn/WJVbwmWhe8BodXzGn0I3MkAm aJhXzi8/kqPlg== 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 , 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 v3 36/54] selftests/mm: hugetlb_fault_after_madv: add setup of HugeTLB pages Date: Tue, 28 Apr 2026 23:42:22 +0300 Message-ID: <20260428204240.1924129-37-rppt@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260428204240.1924129-1-rppt@kernel.org> References: <20260428204240.1924129-1-rppt@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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. Signed-off-by: Mike Rapoport (Microsoft) --- tools/testing/selftests/mm/hugetlb_fault_after_madv.c | 6 ++---- 1 file changed, 2 insertions(+), 4 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..481863cc5fda 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 @@ -78,10 +77,9 @@ 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) { + if (!hugetlb_setup_default(1)) { ksft_exit_skip("This test needs one and only one page to execute. Got %lu\n", - free_hugepages); + hugetlb_free_default_pages()); } while (max--) { -- 2.53.0