linux-kernel - Re: [PATCH] statx: stx

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Date: Thu, 7 Mar 2024 12:39:58 -0500
From: Kent Overstreet <kent.overstreet@...ux.dev>
To: Christian Brauner <brauner@...nel.org>
Cc: linux-bcachefs@...r.kernel.org, linux-fsdevel@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Josef Bacik <josef@...icpanda.com>, 
	Miklos Szeredi <mszeredi@...hat.com>, David Howells <dhowells@...hat.com>
Subject: Re: [PATCH] statx: stx_vol

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@...ux.dev>
> > Cc: Josef Bacik <josef@...icpanda.com>
> > Cc: Miklos Szeredi <mszeredi@...hat.com>
> > Cc: Christian Brauner <brauner@...nel.org>
> > Cc: David Howells <dhowells@...hat.com>
> > ---
> 
> 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.

_id is too redundant for me, can we just do STATX_SUBVOL/statx.subvol?