Re: [PATCH RFC] rcu/nocb: Provide default all-CPUs mask for RCU_NOCB_CPU=y

Steven Rostedt
2022-04-20T20:36:18Z

On Thu, 14 Apr 2022 17:38:08 -0400
Joel Fernandes <joel@joelfernandes.org> wrote:

> Then it should be called: CONFIG_RCU_NOCB_CPU_DEFAULT_ALL , or
> something. Otherwise I can tell you that I will be the first one to be
> confused by menuconfig unless I also read the code :-D

Naw, I think calling it CONFIG_RCU_NOCB_CPU_ALL is fine, it's what you
write in the help message of the Kconfig file that really matters.

I would always say that what is on the command line should override the
configs (when feasible). To add something to the command line takes effort,
and is always visible (cat /proc/cmdline), whereas configs are hidden and
not as visible to those using the kernel. Not having the command line work
would be annoying, and even if it came up with a message of "The config
says *all* so I'm ignoring what you want to do" would be exceptionally more
annoying as now the user has to recompile the kernel (and only if they
could).

-- Steve