Re: [PATCH RESEND 05/62] init: remove "ramdisk_start" command line parameter, which controls starting block number of initrd

Christophe Leroy
2025-09-15T12:21:08Z

Have a simpler subject,

Le 13/09/2025 à 02:37, Askar Safin a écrit :
> [Vous ne recevez pas souvent de courriers de safinaskar@gmail.com. Découvrez pourquoi ceci est important à https://aka.ms/LearnAboutSenderIdentification ]
>
> This is preparation for initrd removal

and make a more interesting message.

For me it would make more sense to remove ramdisk_start and ramdisk_size
at the same time.

Christophe

>
> Signed-off-by: Askar Safin <safinaskar@gmail.com>
> ---
> Documentation/admin-guide/blockdev/ramdisk.rst | 3 +--
> Documentation/admin-guide/kernel-parameters.txt | 2 --
> init/do_mounts_rd.c | 7 -------
> 3 files changed, 1 insertion(+), 11 deletions(-)
>
> diff --git a/Documentation/admin-guide/blockdev/ramdisk.rst b/Documentation/admin-guide/blockdev/ramdisk.rst
> index 9ce6101e8dd9..e57c61108dbc 100644
> --- a/Documentation/admin-guide/blockdev/ramdisk.rst
> +++ b/Documentation/admin-guide/blockdev/ramdisk.rst
> @@ -74,12 +74,11 @@ arch/x86/boot/Makefile.
>
> Some of the kernel command line boot options that may apply here are::
>
> - ramdisk_start=N
> ramdisk_size=M
>
> If you make a boot disk that has LILO, then for the above, you would use::
>
> - append = "ramdisk_start=N ramdisk_size=M"
> + append = "ramdisk_size=M"
>
> 4) An Example of Creating a Compressed RAM Disk
> -----------------------------------------------
> diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
> index f940c1184912..07e8878f1e13 100644
> --- a/Documentation/admin-guide/kernel-parameters.txt
> +++ b/Documentation/admin-guide/kernel-parameters.txt
> @@ -5285,8 +5285,6 @@
> ramdisk_size= [RAM] Sizes of RAM disks in kilobytes
> See Documentation/admin-guide/blockdev/ramdisk.rst.
>
> - ramdisk_start= [RAM] RAM disk image start address
> -
> random.trust_cpu=off
> [KNL,EARLY] Disable trusting the use of the CPU's
> random number generator (if available) to
> diff --git a/init/do_mounts_rd.c b/init/do_mounts_rd.c
> index 8e0a774a9c6f..864fa88d9f89 100644
> --- a/init/do_mounts_rd.c
> +++ b/init/do_mounts_rd.c
> @@ -17,13 +17,6 @@
> static struct file *in_file, *out_file;
> static loff_t in_pos, out_pos;
>
> -static int __init ramdisk_start_setup(char *str)
> -{
> - /* will be removed in next commit */
> - return 1;
> -}
> -__setup("ramdisk_start=", ramdisk_start_setup);
> -
> static int __init crd_load(decompress_fn deco);
>
> /*
> --
> 2.47.2
>
>