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Thu, 14 Dec 2023 12:35:36 +0000 (UTC) Received: from dovecot-director2.suse.de ([10.150.64.162]) by imap1.dmz-prg2.suse.org with ESMTPSA id bqEcN5j2emU8AgAAD6G6ig (envelope-from ); Thu, 14 Dec 2023 12:35:36 +0000 Message-ID: Date: Thu, 14 Dec 2023 13:35:35 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.15.1 Subject: Re: [PATCH v2] Documentation, mm/unaccepted: document accept_memory kernel parameter Content-Language: en-US To: Jonathan Corbet Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Tim Chen , "Kirill A. Shutemov" , Linux-MM References: <20231214-accept_memory_param-v2-1-f38cd20a0247@suse.cz> From: Vlastimil Babka In-Reply-To: <20231214-accept_memory_param-v2-1-f38cd20a0247@suse.cz> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Spamd-Bar: ++++ X-Rspam-User: X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 1AB0440025 X-Stat-Signature: 8yy4kida58h9m9urd6388rdx8dtxwii7 X-HE-Tag: 1702557339-537644 X-HE-Meta: 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 jSm1mFIV 9irMGFmHLHr5GqzEauhtI22Hxe57DbNRdw3ULDLWsaKchbR7ZJ/GcnAvx8QzrgPq/mpCItlnzg4DwA8AvOVHCBP4wuEKScsxI1vrLknRwpLrV2lKKeW7NGR53AlHg8RXKJNNo5YR9nIvRjEZMohSzu+f6RcvSO0WZ2+vWvLhlT+e5ZCxnbdtDN1WK6wwfFjiNEJAupaAZUpfd3amwsYPrDL9bwxPxQo/HfjedAkD70n39pVdxG9sym0zPlGSWLrGXkFtRACkqgCn3A2xCqOSHWrEZu8WMXwdNyiRR 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: +CC linux-mm On 12/14/23 13:22, Vlastimil Babka wrote: > The accept_memory kernel parameter was added in commit dcdfdd40fa82 > ("mm: Add support for unaccepted memory") but not listed in the > kernel-parameters doc. Add it there. > > Acked-by: Kirill A. Shutemov > Signed-off-by: Vlastimil Babka > --- > changes since v1: > - use shorter sentences (Tim Chen) > --- > Documentation/admin-guide/kernel-parameters.txt | 11 +++++++++++ > 1 file changed, 11 insertions(+) > > diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt > index 65731b060e3f..91bd74b2e203 100644 > --- a/Documentation/admin-guide/kernel-parameters.txt > +++ b/Documentation/admin-guide/kernel-parameters.txt > @@ -1,3 +1,14 @@ > + accept_memory= [MM] > + Format: { eager | lazy } > + default: lazy > + By default, unaccepted memory is accepted lazily to > + avoid prolonged boot times. The lazy option will add > + some runtime overhead until all memory is eventually > + accepted. In most cases the overhead is negligible. > + For some workloads or for debugging purposes > + accept_memory=eager can be used to accept all memory > + at once during boot. > + > acpi= [HW,ACPI,X86,ARM64,RISCV64] > Advanced Configuration and Power Interface > Format: { force | on | off | strict | noirq | rsdt | > > --- > base-commit: a39b6ac3781d46ba18193c9dbb2110f31e9bffe9 > change-id: 20231214-accept_memory_param-af395e3a2d45 > > Best regards,