Re: [PATCH 00/17] VFS: Filesystem information and notifications [ver #17]

[Miklos Szeredi]

On Fri, Feb 28, 2020 at 1:27 PM Greg Kroah-Hartman
<gregkh@xxxxxxxxxxxxxxxxxxx> wrote:

> > Superblocks and mounts could get enumerated by a unique identifier.
> > mnt_id seems to be good for mounts, s_dev may or may not be good for
> > superblock, but  s_id (as introduced in this patchset) could be used
> > instead.
>
> So what would the sysfs tree look like with this?

For a start something like this:

mounts/$MOUNT_ID/
  parent -> ../$PARENT_ID
  super -> ../../supers/$SUPER_ID
  root: path from mount root to fs root (could be optional as usually
they are the same)
  mountpoint -> $MOUNTPOINT
  flags: mount flags
  propagation: mount propagation
  children/$CHILD_ID -> ../../$CHILD_ID

 supers/$SUPER_ID/
   type: fstype
   source: mount source (devname)
   options: csv of mount options

Thanks,
Miklos