Re: Adding subroot information to /proc/mounts, or obtaining that through other means

Al Viro
2007-06-20T21:03:53Z

On Wed, Jun 20, 2007 at 01:57:33PM -0700, H. Peter Anvin wrote:
> ... or, alternatively, add a subfield to the first field (which would
> entail escaping whatever separator we choose):
>
> /dev/md6 /export ext3 rw,data=ordered 0 0
> /dev/md6:/users/foo /home/foo ext3 rw,data=ordered 0 0
> /dev/md6:/users/bar /home/bar ext3 rw,data=ordered 0 0

Hell, no. The first field is in principle impossible to parse unless
you know the fs type.

How about making a new file with sane format? From the very
beginning. E.g. mountpoint + ID + relative path + type + options,
where ID uniquely identifies superblock (e.g. numeric st_dev)
and backing device (if any) is sitting among the options...