On Mon, Mar 04, 2024 at 10:18:22AM +0100, Christian Brauner wrote: > On Sat, Mar 02, 2024 at 05:02:03PM -0500, Kent Overstreet wrote: > > Add a new statx field for (sub)volume identifiers. > > > > This includes bcachefs support; we'll definitely want btrfs support as > > well. > > > > Link: https://lore.kernel.org/linux-fsdevel/2uvhm6gweyl7iyyp2xpfryvcu2g3padagaeqcbiavjyiis6prl@yjm725bizncq/ > > Signed-off-by: Kent Overstreet <kent.overstreet@xxxxxxxxx> > > Cc: Josef Bacik <josef@xxxxxxxxxxxxxx> > > Cc: Miklos Szeredi <mszeredi@xxxxxxxxxx> > > Cc: Christian Brauner <brauner@xxxxxxxxxx> > > Cc: David Howells <dhowells@xxxxxxxxxx> > > --- > > As I've said many times before I'm supportive of this and would pick up > a patch like this. There's definitely a lot of userspace that would make > use of this that I'm aware of. If the btrfs people could provide an Ack > on this to express their support here that would be great. > > And it would be lovely if we could expand the commit message a bit and > do some renaming/bikeshedding. Imho, STATX_SUBVOLUME_ID is great and > then stx_subvolume_id or stx_subvol_id. And then subvolume_id or > subvol_id for the field in struct kstat. Sorry I had my head down in some NFS problems. This works for me, I agree with the naming suggestions you've made. Kent, when you send a new version I'll review it and then followup with a btrfs patch. Thanks for getting this ball rolling, Josef