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[2003:d8:2f4a:8900:884a:b3af:e3c9:ec88]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-442f39ef400sm68706915e9.33.2025.05.15.07.58.49 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 15 May 2025 07:58:50 -0700 (PDT) Message-ID: <51aa0ced-e736-4eb5-a376-75dcb30469be@redhat.com> Date: Thu, 15 May 2025 16:58:48 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/6] prctl: introduce PR_THP_POLICY_DEFAULT_HUGE for the process To: Usama Arif , Lorenzo Stoakes Cc: Andrew Morton , linux-mm@kvack.org, hannes@cmpxchg.org, shakeel.butt@linux.dev, riel@surriel.com, ziy@nvidia.com, laoar.shao@gmail.com, baolin.wang@linux.alibaba.com, Liam.Howlett@oracle.com, npache@redhat.com, ryan.roberts@arm.com, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, kernel-team@meta.com References: <20250515133519.2779639-1-usamaarif642@gmail.com> <20250515133519.2779639-2-usamaarif642@gmail.com> <2d30bcce-6f80-468f-945d-b63eff726db5@redhat.com> <47603579-4d42-4617-8386-6656341c8d56@gmail.com> From: David Hildenbrand Autocrypt: addr=david@redhat.com; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Stat-Signature: uuw8wume1xgujpbd4n4j85t4a8cg4ss4 X-Rspamd-Queue-Id: D031F40013 X-Rspam-User: X-Rspamd-Server: rspam02 X-HE-Tag: 1747321133-188121 X-HE-Meta: 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 cKdyZkDK 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 15.05.25 16:56, Usama Arif wrote: > > > On 15/05/2025 15:44, David Hildenbrand wrote: >> On 15.05.25 16:40, Lorenzo Stoakes wrote: >>> Overall I feel this series should _DEFINITELY_ be an RFC. This is pretty >>> outlandish stuff and needs discussion. >>> >>> You're basically making it so /sys/kernel/mm/transparent_hugepage/enabled = >>> never is completely ignored and overridden. >> >> I thought I made it very clear during earlier discussions that never means never. >> > > Yes never means never Good, likely worth stating that clearly that there are no overrides (I did not look into the series yet, I was only responding to Lorenzo's concerns) :) -- Cheers, David / dhildenb