linux-kernel - Re: [PATCH] Documentation/sysctl: Add timer

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Message-ID: <877c6x9vcy.fsf@trenco.lwn.net>
Date: Tue, 14 Jan 2025 10:08:13 -0700
From: Jonathan Corbet <corbet@....net>
To: Phil Auld <pauld@...hat.com>, linux-kernel@...r.kernel.org
Cc: linux-doc@...r.kernel.org
Subject: Re: [PATCH] Documentation/sysctl: Add timer_migration to kernel.rst

Phil Auld <pauld@...hat.com> writes:

> There is no mention of timer_migration in the docs. Add
> a short description.
>
> Signed-off-by: Phil Auld <pauld@...hat.com>
> Cc: Jonathan Corbet <corbet@....net>
> Cc: linux-doc@...r.kernel.org
> ---
>  Documentation/admin-guide/sysctl/kernel.rst | 7 +++++++
>  1 file changed, 7 insertions(+)
>
> diff --git a/Documentation/admin-guide/sysctl/kernel.rst b/Documentation/admin-guide/sysctl/kernel.rst
> index b2b36d0c3094..e03691e2cf4a 100644
> --- a/Documentation/admin-guide/sysctl/kernel.rst
> +++ b/Documentation/admin-guide/sysctl/kernel.rst
> @@ -1544,6 +1544,13 @@ constant ``FUTEX_TID_MASK`` (0x3fffffff).
>  If a value outside of this range is written to ``threads-max`` an
>  ``EINVAL`` error occurs.
>  
> +timer_migration
> +===============
> +
> +When set, attempt to migrate timers away from idle cpus to allow them to remain
> +in low power states longer.
> +
> +Default is set.

When set to *what*?  It will always be set to *some* value, right?  So
we should really say what the specific values mean.

Thanks,

jon