On Tue, Oct 18, 2022 at 01:04:40PM +0200, Greg Kroah-Hartman wrote:

Why do you need to?  What tools require these debugfs files to be
present?

We are not entirely sure what applications (if any) might be using this interface.

And if you only have 7-8 files per CPU, that does not seem like a lot of
files overall (14000-16000)?  If you only offline 1 cpu, how is removing
7 or 8 files a bottleneck?  Do you really offline 1999 cpus for a 2k
system?

It's 7-8 files per domain per cpu, so, in a system with approx 2k cpus and five
domains, the total file count goes above 70k-80k files. And, when we offline 1
CPU, the entire directory is rebuilt, resulting in creation of all the files
again.

Thanks

-- vishal.c