On Wed, Jun 29, 2022 at 06:45:48PM +0200, Jason A. Donenfeld wrote:
> On Wed, Jun 29, 2022 at 06:37:01PM +0200, Christoph Hellwig wrote:
> > be a policy set somewhere either in the kernel or fed into the kernel
> > by userspace.  Then we can key it off that, and I suspect it is
> > probably going to be a runtime variable and not a config option.
> Right, this would be a good way of addressing it.
> Maybe some Android people on the list have a good idea off hand of what
> Android uses at runtime to control this, and how it'd be accessible in
> the kernel?

In case it helps, in the case of CONFIG_RCU_EXP_CPU_STALL_TIMEOUT,
the Android guys can use things like defconfig at kernel-build time or
the rcu_exp_cpu_stall_timeout kernel-boot/sysfs parameter at boot time
or runtime.

                                                        Thanx, Paul

Reply via email to