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Mon, 23 Mar 2026 15:17:57 +0000 (UTC) From: Chunyu Hu To: akpm@linux-foundation.org, david@kernel.org, shuah@kernel.org, linux-mm@kvack.org, ljs@kernel.org Cc: linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, vbabka@suse.cz, rppt@kernel.org, surenb@google.com, mhocko@suse.com, ziy@nvidia.com, baolin.wang@linux.alibaba.com, npache@redhat.com, ryan.roberts@arm.com, dev.jain@arm.com, baohua@kernel.org, lance.yang@linux.dev, chuhu@redhat.com Subject: [PATCH v5 0/6] selftests/mm: skip several tests when thp is not available Date: Mon, 23 Mar 2026 23:17:47 +0800 Message-ID: <20260323151753.2576137-1-chuhu@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 X-Mimecast-MFC-PROC-ID: It4rEQ-Te8y3ptrfK9e9D8PAdtKcRy55NWCpLrz-r_s_1774279087 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit content-type: text/plain; charset="US-ASCII"; x-default=true X-Rspamd-Queue-Id: 2D56C80012 X-Stat-Signature: qx7p9qr8qk8nweut6uixqizzmoep5tyd X-Rspam-User: X-Rspamd-Server: rspam04 X-HE-Tag: 1774279094-651090 X-HE-Meta: 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 TH3I4jXb 78Z0+g+z/mRPRvyMzNnpHXjJyGzivIEqj5i6bZaAmiwIdYJMmJ/ZS9U81hsTopxGAzbhaiQ9QbXC4XpI4QGUyHuzbXNL/+TJp0jgSr1OhH8QRWKSFykXvyX0imwIwiUIiWT51o4oMBtu46r3DJfrk0enF59rVH8MrJRO9c3QkQcGlDKiG9bV2vqylv7uVJoa2WS1mL6EMPoplmTMocI8NBFm3nRNusigS8NZcU6FPnBXganIVjtd6fhUfG4brqQFcKcyZfWcmvYKqiXSXuzUraExbGpYWJHoXtooMp1a4GLcQExu1jXhYvSuUcCBkyFjKEjUg Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: There are several tests requires transprarent hugepages, when run on thp disabled kernel such as realtime kernel, there will be false negative. Mark those tests as skip when thp is not available. Changes in v5: - patch 1, patch 3 updated reviwed-by and acked-by - patch 4 adds new patch for robust write_file() Changes in v4: - patch 1 update to use thp_available instead of thp_is_enabled, suggested by ai review - removed reviewed-by and acked-by Changes in v3: - patch 1 update commit message to show the log snippet with where the fail happens, change the 'false positive' to 'false negative'. Update reviwed by - patch 2 update reviewed-by - patch 3 make write_file to void return - patch 4 and patch 5 updated reviewed-by/acked-by Changes in v2: - replace 'false postive' with 'false negative' in cover letter - patch 1 and patch 2 add reviewed-by/acked-by - new patch 3 to add write_file() in vm_util as a common helper - patch 4 removed the {} in if block, removed the write_file helper rename chunk in v1. Add reviewed-by - patch 5 move the exit chunk to the front of ksft_print_headers() as suggested by David. Add review by. Chunyu Hu (6): selftests/mm/guard-regions: skip collapse test when thp not enabled selftests/mm: soft-dirty: skip two tests when thp is not available selftests/mm: move write_file helper to vm_util selftests/mm/vm_util: robust write_file() selftests/mm: split_huge_page_test: skip the test when thp is not available selftests/mm: transhuge_stress: skip the test when thp not available tools/testing/selftests/mm/guard-regions.c | 4 +++ tools/testing/selftests/mm/soft-dirty.c | 4 ++- .../selftests/mm/split_huge_page_test.c | 19 +++------- tools/testing/selftests/mm/thp_settings.c | 35 ++----------------- tools/testing/selftests/mm/thp_settings.h | 1 - tools/testing/selftests/mm/transhuge-stress.c | 4 +++ tools/testing/selftests/mm/vm_util.c | 21 +++++++++++ tools/testing/selftests/mm/vm_util.h | 2 ++ 8 files changed, 41 insertions(+), 49 deletions(-) base-commit: c369299895a591d96745d6492d4888259b004a9e -- 2.53.0