From: David Hildenbrand <david@redhat.com>
To: Usama Arif <usamaarif642@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org
Cc: linux-fsdevel@vger.kernel.org, corbet@lwn.net, rppt@kernel.org,
surenb@google.com, mhocko@suse.com, hannes@cmpxchg.org,
baohua@kernel.org, shakeel.butt@linux.dev, riel@surriel.com,
ziy@nvidia.com, laoar.shao@gmail.com, dev.jain@arm.com,
baolin.wang@linux.alibaba.com, npache@redhat.com,
lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com,
ryan.roberts@arm.com, vbabka@suse.cz, jannh@google.com,
Arnd Bergmann <arnd@arndb.de>,
sj@kernel.org, linux-kernel@vger.kernel.org,
linux-doc@vger.kernel.org, kernel-team@meta.com
Subject: Re: [PATCH v3 5/6] selftests: prctl: introduce tests for disabling THPs completely
Date: Tue, 5 Aug 2025 14:39:19 +0200 [thread overview]
Message-ID: <66c2b413-fa60-476a-b88f-542bbda9c89c@redhat.com> (raw)
In-Reply-To: <20250804154317.1648084-6-usamaarif642@gmail.com>
> +FIXTURE_SETUP(prctl_thp_disable_completely)
> +{
> + if (!thp_available())
> + SKIP(return, "Transparent Hugepages not available\n");
> +
> + self->pmdsize = read_pmd_pagesize();
> + if (!self->pmdsize)
> + SKIP(return, "Unable to read PMD size\n");
> +
> + thp_save_settings();
> + thp_read_settings(&self->settings);
> + self->settings.thp_enabled = variant->thp_policy;
> + self->settings.hugepages[sz2ord(self->pmdsize, getpagesize())].enabled = THP_INHERIT;
Oh, one more thing: should we set all other sizes also to THP_INHERIT or
(for simplicity) THP_NEVER?
--
Cheers,
David / dhildenb
next prev parent reply other threads:[~2025-08-05 12:39 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-04 15:40 [PATCH v3 0/6] prctl: extend PR_SET_THP_DISABLE to only provide THPs when advised Usama Arif
2025-08-04 15:40 ` [PATCH v3 1/6] prctl: extend PR_SET_THP_DISABLE to optionally exclude VM_HUGEPAGE Usama Arif
2025-08-04 15:40 ` [PATCH v3 2/6] mm/huge_memory: convert "tva_flags" to "enum tva_type" Usama Arif
2025-08-05 1:41 ` Baolin Wang
2025-08-05 14:35 ` Lorenzo Stoakes
2025-08-04 15:40 ` [PATCH v3 3/6] mm/huge_memory: respect MADV_COLLAPSE with PR_THP_DISABLE_EXCEPT_ADVISED Usama Arif
2025-08-05 1:49 ` Baolin Wang
2025-08-05 14:43 ` Lorenzo Stoakes
2025-08-05 15:08 ` Usama Arif
2025-08-04 15:40 ` [PATCH v3 4/6] docs: transhuge: document process level THP controls Usama Arif
2025-08-05 10:24 ` David Hildenbrand
2025-08-05 12:09 ` Usama Arif
2025-08-05 15:08 ` Lorenzo Stoakes
2025-08-04 15:40 ` [PATCH v3 5/6] selftests: prctl: introduce tests for disabling THPs completely Usama Arif
2025-08-05 10:30 ` David Hildenbrand
2025-08-05 12:13 ` Usama Arif
2025-08-05 12:16 ` David Hildenbrand
2025-08-05 12:39 ` David Hildenbrand [this message]
2025-08-05 12:46 ` Usama Arif
2025-08-05 12:55 ` David Hildenbrand
2025-08-05 14:26 ` Usama Arif
2025-08-05 14:32 ` David Hildenbrand
2025-08-04 15:40 ` [PATCH v3 6/6] selftests: prctl: introduce tests for disabling THPs except for madvise Usama Arif
2025-08-05 10:36 ` David Hildenbrand
2025-08-05 12:19 ` Usama Arif
2025-08-05 12:29 ` David Hildenbrand
2025-08-05 12:31 ` Usama Arif
2025-08-04 15:46 ` [PATCH v3 0/6] prctl: extend PR_SET_THP_DISABLE to only provide THPs when advised Usama Arif
2025-08-13 6:06 ` Lorenzo Stoakes
2025-08-13 8:07 ` Usama Arif
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