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 960113783C0; Tue, 28 Apr 2026 20:46:15 +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=1777409175; cv=none; b=n9gG8xp473d4+TVoIyokCKCQcW/uYkiqaUgMvkQxwFB/uTCU28SQYkd9re7jkYfXBpWZu2yI4Nz0Ysc0UE0ib77wD7OEnWsHIJQcU3/tduvOanplKl5HZyM+iaaxBJ6j1KaXQ9iZ/PyV331Cgk5x9H+a00UqXmakrshXFeHMjwM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777409175; c=relaxed/simple; bh=1/ugYRnvvCSRn7Fw/zm14SmACzlAtT74uoyJWfVmAG8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=KEpoqGJqY7S38SMl/8O11JFwF9L46yj4lAWjScQfowrFSdYUpipD3rbkLC//yaYHh6sZsuAtR6XWsTooRTsYMecKnlljMIe4XL7HVFcc3nlBBQH79MuT4M7MXUaHuE3M4w3DPEhtQMeU8c6vK+3+2B1jnxQgdvbvlR9pArabyL4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=kTFsYnxL; 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="kTFsYnxL" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6C0CDC2BCAF; Tue, 28 Apr 2026 20:46:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1777409175; bh=1/ugYRnvvCSRn7Fw/zm14SmACzlAtT74uoyJWfVmAG8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kTFsYnxLJOXZ0Q/eEhcLcg5Mlx0/S5fL9oy9PD+uUlFmgofUhqxp7PdVxkOQVCNEQ eMKvRBpPLeJ8BcHjU5lD2EBjvd0VHGsRxbwsZEjZ5Fd6Q3krz8cVblBXTqUVwJ3jQa atxv47h0dBWxJnx2wSGBFc/voKhGGWWaqc1T/NjwKkSh+GqOOqXHrQVqIo9JDmVYf4 nsr73MeVOdZyI0K7DYbKAr+KDLczHmrQhprpBvvxqCTssdFm04wNGXq4MnTC5iws1+ 29t71PuA6Af6KROAp9kammZcyZv4Q8xTEQJ7fIlU/+IDBDG6uIkfJLGgkXuM0itW1U JOMuUU8YENv6A== 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 31/54] selftests/mm: cow: add setup of HugeTLB pages Date: Tue, 28 Apr 2026 23:42:17 +0300 Message-ID: <20260428204240.1924129-32-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)" cow tests 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/cow.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/mm/cow.c b/tools/testing/selftests/mm/cow.c index 4321f4208fe3..1df513bf362d 100644 --- a/tools/testing/selftests/mm/cow.c +++ b/tools/testing/selftests/mm/cow.c @@ -1881,21 +1881,21 @@ int main(int argc, char **argv) ksft_print_header(); + hugepage_save_settings(true, true); + pagesize = getpagesize(); pmdsize = read_pmd_pagesize(); if (pmdsize) { /* Only if THP is supported. */ thp_read_settings(&default_settings); default_settings.hugepages[sz2ord(pmdsize, pagesize)].enabled = THP_INHERIT; - thp_save_settings(); thp_push_settings(&default_settings); ksft_print_msg("[INFO] detected PMD size: %zu KiB\n", pmdsize / 1024); nr_thpsizes = detect_thp_sizes(thpsizes, ARRAY_SIZE(thpsizes)); } - nr_hugetlbsizes = detect_hugetlb_page_sizes(hugetlbsizes, - ARRAY_SIZE(hugetlbsizes)); + nr_hugetlbsizes = hugetlb_setup(2, hugetlbsizes, ARRAY_SIZE(hugetlbsizes)); has_huge_zeropage = detect_huge_zeropage(); ksft_set_plan(ARRAY_SIZE(anon_test_cases) * tests_per_anon_test_case() + -- 2.53.0