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b=T8O/K0UUKi2CvMAbunh4JaL6YLo/f8dyHT851u/j99qXZo97VgKb4+y6ykdfZSo3U Nv5I7l5d43msX0bJWB2KH3dAL3vcvnsVWuWa3WoINtbamo2DbcHLJL7nG9Dou+kSLY /ccIY80gPQ/fsQ54v/bzMWnxWRRtshxyRhEC6m5vsyrtXRdGXknCVS6wZ0uC+ZWOVD NrFWJvEkxRjEbCqcYOyml3aaBafIrStlr6HoNDnbnIuoW0meqzx48VXAVRixevGMYS KDbC2e/Vx/Qpik3PGHo+ggwlJK+3mJa8kEw97kQIb35ZlL4lfsZ7wzh1G9FKn/UiXb vZhagA8E7zuPA== Message-ID: Date: Thu, 12 Mar 2026 20:39:31 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/4] selftests/mm: skip several tests when thp is not available To: Chunyu Hu , akpm@linux-foundation.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 References: <20260312114027.634559-1-chuhu@redhat.com> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 463D540008 X-Stat-Signature: 699yhep9be67t3eszd4b69ecod3stbj6 X-Rspam-User: X-HE-Tag: 1773344380-994356 X-HE-Meta: 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 nWlH8iO0 BRi4IIYr0LeQDpCeIAfL7c6tXkkdYtE1Boz7xLmBEO5mmr42OELPsaFuVtRrWwpz4Y1MSfr+jAhPZFY2cAFXRBM2uN743xA+zxq8eiCyH1Ks9sc6joSecIcX2h96zGcedVvmwXyz1KN9O+FWIwCJ9X7sZqBtvAPIpvr22kNRO4Q9wTS9r/VXjv6bkBDHBodEAM6CuP9BrbACRY90LGrfU9I9rPnXWOmTNW0xNu+vKkUdgrAVObv7ndViUmqcotL98Oj+d Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 3/12/26 12:40, Chunyu Hu wrote: > There are several tests requires transprarent hugepages, when run on thp > disabled kernel such as realtime kernel, there will be false positve. > Mark those tests as skip when thp is not available. We expend that people that run the tests have the configs as contained in tools/testing/selftests/mm/config enabled. I'm fine with teaching the tests that that is no longer required. Should we then remove CONFIG_TRANSPARENT_HUGEPAGE=y from the file, or leave it in there for people building their configs to know what to enable for best test coverage? (I doubt people do use it for that purpose) -- Cheers, David