[PATCH v2] Documentation, mm/unaccepted: document accept_memory kernel parameter

[PATCH v2] Documentation, mm/unaccepted: document accept_memory kernel parameter

[Vlastimil Babka]

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 <kirill.shutemov@linux.intel.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
---
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,
-- 
Vlastimil Babka <vbabka@suse.cz>

Re: [PATCH v2] Documentation, mm/unaccepted: document accept_memory kernel parameter

[Vlastimil Babka]

+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 <kirill.shutemov@linux.intel.com>
> Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
> ---
> 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,

Re: [PATCH v2] Documentation, mm/unaccepted: document accept_memory kernel parameter

[Jonathan Corbet]

Vlastimil Babka <vbabka@suse.cz> writes:

> 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 <kirill.shutemov@linux.intel.com>
> Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
> ---
> 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.
> +

Applied, thanks.

jon