On Mon, 28 Feb 2022 at 12:39, Amir Goldstein <amir73il@xxxxxxxxx> wrote: > > Show optional collected per-mount io stats in /proc/<pid>/mountstats > for filesystems that do not implement their own show_stats() method > and opted-in to generic per-mount stats with FS_MOUNT_STATS flag. This would allow some filesystems to report per-mount I/O stats, while leaving CIFS and NFS reporting a different set of per-sb stats. This doesn't sound very clean. There was an effort to create saner and more efficient interfaces for per-mount info. IMO this should be part of that effort instead of overloading the old interface. Thanks, Miklos