linux-kernel - Re: [PATCH v9 1/9] kho: make debugfs interface optional

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Message-ID: <CA+CK2bCUN6SH7x=DnTFvCgEYGKoyOrCMzwQjHCY0LK35Hd-_zA@mail.gmail.com>
Date: Thu, 13 Nov 2025 15:13:20 -0500
From: Pasha Tatashin <pasha.tatashin@...een.com>
To: "Yanjun.Zhu" <yanjun.zhu@...ux.dev>
Cc: Pratyush Yadav <pratyush@...nel.org>, akpm@...ux-foundation.org, brauner@...nel.org, 
	corbet@....net, graf@...zon.com, jgg@...pe.ca, linux-kernel@...r.kernel.org, 
	linux-kselftest@...r.kernel.org, linux-mm@...ck.org, masahiroy@...nel.org, 
	ojeda@...nel.org, rdunlap@...radead.org, rppt@...nel.org, tj@...nel.org
Subject: Re: [PATCH v9 1/9] kho: make debugfs interface optional

On Thu, Nov 13, 2025 at 3:10 PM Pasha Tatashin
<pasha.tatashin@...een.com> wrote:
>
> >   set -e
> >
> > -kexec -l -s --reuse-cmdline /boot/bzImage
> > +kexec -l -s --reuse-cmdline /boot/bzImage --initrd
> > /boot/initramfs-`uname -r`.img
>
> Thank you for your suggestion, in the next version, I am going to add
> initramfs optionally, I am thinking to update script to something like

Optionally, because in some environments (like in mine), it is built
into bzImage.

> this:
>
> #!/bin/sh
> # SPDX-License-Identifier: GPL-2.0
> set -e
>
> # Use $KERNEL and $INITRAMFS to pass custom Kernel and optional initramfs
>
> KERNEL="${KERNEL:-/boot/bzImage}"
> set -- -l -s --reuse-cmdline "$KERNEL"
>
> INITRAMFS="${INITRAMFS:-/boot/initramfs}"
> if [ -f "$INITRAMFS" ]; then
>     set -- "$@" --initrd="$INITRAMFS"
> fi
>
> kexec "$@"
> kexec -e