Re: [GIT PULL] RCU changes for v7.1

[Linus Torvalds]

On Tue, 31 Mar 2026 at 10:42, Joel Fernandes <joelagnelf@xxxxxxxxxx> wrote:
>
> RCU stall:
>
> - Add BOOTPARAM_RCU_STALL_PANIC Kconfig option to allow triggering a kernel
>   panic on RCU stall via kernel boot parameter.

No.

Dammit, stop doing these horrible things.

I've said this a million times by now: the kernel config phase is
probably one of the biggest pain points for random new people trying
to build their own kernels, and we DO NOT ASK PEOPLE STUIPID THINGS.

People who want this can damn well use the sysctl or maybe some kernel
command line option instead, and we DO NOT MAKE LIFE WORSE FOR
EVERYBODY ELSE.

I have removed that disgusting kernel kconfig option, and I want to
make it very clear to people that the kconfig files aren't your
personal playgrounds: they are the most visible interface to NORMAL
USERS that we want to encourage to build their own kernels so that
they can participate in kernel development.

So people: next time you feel the urge to add a Kconfig option, take a
deep breath, and look at that Kconfig file, and go "Maybe I can
instead remove this *other* useless option instead".

Let's *improve* on the kernel instead of making things worse.

                 Linus