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 3DE4D355F52; Sat, 18 Apr 2026 10:58:53 +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=1776509933; cv=none; b=GGjHIen0kctW4E7v3Eszwisl4hDE6DuRTweygAByW7FppmegJvm+baQbaMBVO4hd8DHWjvK4I5DNaP6wPIxgmmBHcKrJiE5GPsSDnjmS5FIsjzu6b6FQkLJrDYwymCuZ3OYXdKWlFTRVYx/I29SVvzPTg9TEcoHFNmD1VMxcxC8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776509933; c=relaxed/simple; bh=1/ugYRnvvCSRn7Fw/zm14SmACzlAtT74uoyJWfVmAG8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=qbPwdbQn7AKWFuQ5LLC+23oypV6CCyHqxgvlifXAYABuKodFt/QYqoxFa+rNLpJeTMXIlV/gpKKld14t3s23huHCrOg3V2u5zs8aj61r5PYwunLiSBVi3JLVWMn8t8pevyOWA9byvtABoJfO8TzsrL0GTpFMZQ5U3bYf7BZr9m4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=GaYvJpiU; 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="GaYvJpiU" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 78C54C2BCB3; Sat, 18 Apr 2026 10:58:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1776509933; bh=1/ugYRnvvCSRn7Fw/zm14SmACzlAtT74uoyJWfVmAG8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GaYvJpiUhsFjtAZ6oeEfPRx/pDSIplMUmXnj8hsUT96vWC7ZP7+1Ea3T30s/eF94q eKwXJsTOAnnBsGeNPkSmN5Gge3gcCZsHttWZQuA5S1Xdal4Wa+yRCt72wcdTRYVSw2 Vq0R2kuAVWMgrcQpyuRkMO5IXDnz2a9IMetzEEpNIDaXWn0UwgA/uq4u2yvXNnuBHi 4Yr1BeujIa1LBCQcjvTnNsPjHFQ0aT7tR643fszmn0nYlqhmMbFvsb12hWhn7iVQlh XBgaInMNWixJfVi6KKF27h3E7ulZb1AEgipizlM0LmPhLz/dN865L5L1zq79f3maBg vIGexg/0WiFSg== 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 30/53] selftests/mm: cow: add setup of HugeTLB pages Date: Sat, 18 Apr 2026 13:55:15 +0300 Message-ID: <20260418105539.1261536-31-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> 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