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

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Message-ID: <20240306195956.GA2420648@perftesting>
Date: Wed, 6 Mar 2024 14:59:56 -0500
From: Josef Bacik <josef@...icpanda.com>
To: Christian Brauner <brauner@...nel.org>
Cc: Kent Overstreet <kent.overstreet@...ux.dev>,
	linux-bcachefs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, 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.

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