tree 1803c740b33b7b14234235b4f142476d2df9bf10
parent 05dbe6837b60465db6a61d1f0cabe745e20aadc9
author Omar Sandoval <osandov@osandov.com> 1431940591 -0700
committer Chris Mason <clm@fb.com> 1433329382 -0700

Btrfs: show subvol= and subvolid= in /proc/mounts

Now that we're guaranteed to have a meaningful root dentry, we can just
export seq_dentry() and use it in btrfs_show_options(). The subvolume ID
is easy to get and can also be useful, so put that in there, too.

Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Omar Sandoval <osandov@osandov.com>
Signed-off-by: Chris Mason <clm@fb.com>