On Thu, Aug 24, 2023 at 10:30:37AM +0800, Z qiang wrote: [..] > > That would be difficult in built-in rcutorture testing due to the fact > > that there is not much in the way of userspace. I suppose we could > > invoke the sysfs handler so as to mock up a userspace access, but that > > might not be the most robust approach. Yes. > Does it mean to use filp_open() to open sched_rt_runtime_us file and > write -1 through kernel_write() ? I am afraid so but that might become hard to maintain in the long run. I prefer exporting the necessary functions from RT to the kernel and just calling those. thanks, - Joel
