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[v1,1/2] Documentation: sysctl: Correct kexec_load_disabled

Message ID 20221114-disable-kexec-reset-v1-1-fb51d20cf871@chromium.org
State New
Headers
Series kexec: Add new toogle to disable kexec_reboot |

Commit Message

Ricardo Ribalda Nov. 14, 2022, 1:18 p.m. UTC 
  kexec_load_disabled affects both ``kexec_load`` and ``kexec_file_load``
syscalls. Make it explicit.

Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>

Comments

Baoquan He Nov. 23, 2022, 9:47 a.m. UTC | #1 
On 11/14/22 at 02:18pm, Ricardo Ribalda wrote:
> kexec_load_disabled affects both ``kexec_load`` and ``kexec_file_load``
> syscalls. Make it explicit.
> 
> Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
> 
> diff --git a/Documentation/admin-guide/sysctl/kernel.rst b/Documentation/admin-guide/sysctl/kernel.rst
> index 98d1b198b2b4..97394bd9d065 100644
> --- a/Documentation/admin-guide/sysctl/kernel.rst
> +++ b/Documentation/admin-guide/sysctl/kernel.rst
> @@ -450,9 +450,10 @@ this allows system administrators to override the
>  kexec_load_disabled
>  ===================
>  
> -A toggle indicating if the ``kexec_load`` syscall has been disabled.
> -This value defaults to 0 (false: ``kexec_load`` enabled), but can be
> -set to 1 (true: ``kexec_load`` disabled).
> +A toggle indicating if the syscalls ``kexec_load`` and
> +``kexec_file_load`` have been disabled.
> +This value defaults to 0 (false: ``kexec_*load`` enabled), but can be
> +set to 1 (true: ``kexec_*load`` disabled).
>  Once true, kexec can no longer be used, and the toggle cannot be set
>  back to false.
>  This allows a kexec image to be loaded before disabling the syscall,

LGTM,

Acked-by: Baoquan He <bhe@redhat.com>

> 
> -- 
> b4 0.11.0-dev-d93f8
>
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Patch

diff --git a/Documentation/admin-guide/sysctl/kernel.rst b/Documentation/admin-guide/sysctl/kernel.rst
index 98d1b198b2b4..97394bd9d065 100644
--- a/Documentation/admin-guide/sysctl/kernel.rst
+++ b/Documentation/admin-guide/sysctl/kernel.rst
@@ -450,9 +450,10 @@  this allows system administrators to override the
 kexec_load_disabled
 ===================
 
-A toggle indicating if the ``kexec_load`` syscall has been disabled.
-This value defaults to 0 (false: ``kexec_load`` enabled), but can be
-set to 1 (true: ``kexec_load`` disabled).
+A toggle indicating if the syscalls ``kexec_load`` and
+``kexec_file_load`` have been disabled.
+This value defaults to 0 (false: ``kexec_*load`` enabled), but can be
+set to 1 (true: ``kexec_*load`` disabled).
 Once true, kexec can no longer be used, and the toggle cannot be set
 back to false.
 This allows a kexec image to be loaded before disabling the syscall,