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Fri, 09 Aug 2024 16:49:36 +0800 Message-ID: <190cd7eb-6881-4e6b-9d6b-e7921404ebcf@linux.alibaba.com> Date: Fri, 9 Aug 2024 16:49:35 +0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2] mm: Override mTHP "enabled" defaults at kernel cmdline To: Ryan Roberts , Andrew Morton , Jonathan Corbet , David Hildenbrand , Barry Song , Lance Yang Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org References: <20240808101700.571701-1-ryan.roberts@arm.com> From: Baolin Wang In-Reply-To: <20240808101700.571701-1-ryan.roberts@arm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 442BBC000A X-Stat-Signature: dji419z5tu1nk4x8jtrepgu5bospa1fe X-HE-Tag: 1723193379-669798 X-HE-Meta: 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 ngbj05Rh KCA+vxU9kC7IEEizETei1qI/mqVMNL/JV13pv+hOZuCNjJ1vA1ARVL9+vvyIeliINlZl9KLmpRZRY02974eA/BtLg1kDEBWsGSnRBVh6+iuACtMaJ+ou6i7thMtY6rqV4GNq8iWnoH8ZsJeU8t/CpLqhpH58sZC9a5UOjAvlMqq5bCLj+DWH5UkeQI3mmKX1ZnRnxcXg2Q566NCS6DqwH2jNRNy/qZPdWIXN0EzWklQkNRQ8DdN8aGQugO9M0sHmWsjbC1jDHqgtiesi18sxZ6MqoruZeUeMQqyXD1WFL2cXvP+uN4RX4W41hNg== 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 2024/8/8 18:16, Ryan Roberts wrote: > Add thp_anon= cmdline parameter to allow specifying the default > enablement of each supported anon THP size. The parameter accepts the > following format and can be provided multiple times to configure each > size: > > thp_anon=[KMG]: > > See Documentation/admin-guide/mm/transhuge.rst for more details. > > Configuring the defaults at boot time is useful to allow early user > space to take advantage of mTHP before its been configured through > sysfs. > > Signed-off-by: Ryan Roberts Make sense to me. Thanks. Reviewed-by: Baolin Wang