Re: [PATCH] uio: Replace mutex info_lock with percpu_ref to improve performance

[Greg KH]

On Tue, Feb 08, 2022 at 03:19:20PM +0800, Guixin Liu wrote:
> This patch includes a modification to repace mutex info_lock with
> percpu_ref, in order to improve uio performance.

How does it improve performance?  What benchmark are you using and what
are the results?

These changes are quite complex, you need to better describe these in
order to be able to have them accepted.

thanks,

greg k-h