From: Lance Yang <lance.yang@linux.dev>
To: Yafang Shao <laoar.shao@gmail.com>
Cc: bpf@vger.kernel.org, linux-mm@kvack.org,
linux-doc@vger.kernel.org, Lance Yang <ioworker0@gmail.com>,
shakeel.butt@linux.dev, rientjes@google.com, ast@kernel.org,
gutierrez.asier@huawei-partners.com, 21cnbao@gmail.com,
daniel@iogearbox.net, ameryhung@gmail.com, corbet@lwn.net,
andrii@kernel.org, willy@infradead.org, usamaarif642@gmail.com,
hannes@cmpxchg.org, dev.jain@arm.com,
baolin.wang@linux.alibaba.com, ziy@nvidia.com,
lorenzo.stoakes@oracle.com, david@redhat.com,
Liam.Howlett@oracle.com, ryan.roberts@arm.com, npache@redhat.com,
akpm@linux-foundation.org
Subject: Re: [PATCH v7 mm-new 01/10] mm: thp: remove disabled task from khugepaged_mm_slot
Date: Wed, 10 Sep 2025 15:21:29 +0800 [thread overview]
Message-ID: <f3c790ce-c324-41c2-8c24-0785076ed642@linux.dev> (raw)
In-Reply-To: <20250910024447.64788-2-laoar.shao@gmail.com>
On 2025/9/10 10:44, Yafang Shao wrote:
> Since a task with MMF_DISABLE_THP_COMPLETELY cannot use THP, remove it from
> the khugepaged_mm_slot to stop khugepaged from processing it.
>
> After this change, the following semantic relationship always holds:
>
> MMF_VM_HUGEPAGE is set == task is in khugepaged mm_slot
> MMF_VM_HUGEPAGE is not set == task is not in khugepaged mm_slot
>
> Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Acked-by: Lance Yang <lance.yang@linux.dev>
Cheers,
Lance
next prev parent reply other threads:[~2025-09-10 7:21 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-10 2:44 [PATCH v7 mm-new 0/9] mm, bpf: BPF based THP order selection Yafang Shao
2025-09-10 2:44 ` [PATCH v7 mm-new 01/10] mm: thp: remove disabled task from khugepaged_mm_slot Yafang Shao
2025-09-10 5:11 ` Lance Yang
2025-09-10 6:17 ` Yafang Shao
2025-09-10 7:21 ` Lance Yang [this message]
2025-09-10 17:27 ` kernel test robot
2025-09-11 2:12 ` Lance Yang
2025-09-11 2:28 ` Zi Yan
2025-09-11 2:35 ` Yafang Shao
2025-09-11 2:38 ` Lance Yang
2025-09-11 13:47 ` Lorenzo Stoakes
2025-09-14 2:48 ` Yafang Shao
2025-09-11 13:43 ` Lorenzo Stoakes
2025-09-14 2:47 ` Yafang Shao
2025-09-10 2:44 ` [PATCH v7 mm-new 02/10] mm: thp: add support for BPF based THP order selection Yafang Shao
2025-09-10 12:42 ` Lance Yang
2025-09-10 12:54 ` Lance Yang
2025-09-10 13:56 ` Lance Yang
2025-09-11 2:48 ` Yafang Shao
2025-09-11 3:04 ` Lance Yang
2025-09-11 14:45 ` Lorenzo Stoakes
2025-09-11 14:02 ` Lorenzo Stoakes
2025-09-11 14:42 ` Lance Yang
2025-09-11 14:58 ` Lorenzo Stoakes
2025-09-12 7:58 ` Yafang Shao
2025-09-12 12:04 ` Lorenzo Stoakes
2025-09-11 14:33 ` Lorenzo Stoakes
2025-09-12 8:28 ` Yafang Shao
2025-09-12 11:53 ` Lorenzo Stoakes
2025-09-14 2:22 ` Yafang Shao
2025-09-11 14:51 ` Lorenzo Stoakes
2025-09-12 8:03 ` Yafang Shao
2025-09-12 12:00 ` Lorenzo Stoakes
2025-09-25 10:05 ` Lance Yang
2025-09-25 11:38 ` Yafang Shao
2025-09-10 2:44 ` [PATCH v7 mm-new 03/10] mm: thp: decouple THP allocation between swap and page fault paths Yafang Shao
2025-09-11 14:55 ` Lorenzo Stoakes
2025-09-12 7:20 ` Yafang Shao
2025-09-12 12:04 ` Lorenzo Stoakes
2025-09-10 2:44 ` [PATCH v7 mm-new 04/10] mm: thp: enable THP allocation exclusively through khugepaged Yafang Shao
2025-09-11 15:53 ` Lance Yang
2025-09-12 6:21 ` Yafang Shao
2025-09-11 15:58 ` Lorenzo Stoakes
2025-09-12 6:17 ` Yafang Shao
2025-09-12 13:48 ` Lorenzo Stoakes
2025-09-14 2:19 ` Yafang Shao
2025-09-10 2:44 ` [PATCH v7 mm-new 05/10] bpf: mark mm->owner as __safe_rcu_or_null Yafang Shao
2025-09-11 16:04 ` Lorenzo Stoakes
2025-09-10 2:44 ` [PATCH v7 mm-new 06/10] bpf: mark vma->vm_mm as __safe_trusted_or_null Yafang Shao
2025-09-11 17:08 ` Lorenzo Stoakes
2025-09-11 17:30 ` Liam R. Howlett
2025-09-11 17:44 ` Lorenzo Stoakes
2025-09-12 3:56 ` Yafang Shao
2025-09-12 3:50 ` Yafang Shao
2025-09-10 2:44 ` [PATCH v7 mm-new 07/10] selftests/bpf: add a simple BPF based THP policy Yafang Shao
2025-09-10 20:44 ` Alexei Starovoitov
2025-09-11 2:31 ` Yafang Shao
2025-09-10 2:44 ` [PATCH v7 mm-new 08/10] selftests/bpf: add test case to update " Yafang Shao
2025-09-10 2:44 ` [PATCH v7 mm-new 09/10] selftests/bpf: add test cases for invalid thp_adjust usage Yafang Shao
2025-09-10 2:44 ` [PATCH v7 mm-new 10/10] Documentation: add BPF-based THP policy management Yafang Shao
2025-09-10 11:11 ` [PATCH v7 mm-new 0/9] mm, bpf: BPF based THP order selection Lance Yang
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