linux-kernel - Re: file metadata via fs API

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Message-ID: <CAJfpegsr8URJHoFunnGShB-=jqypvtrmLV-BcWajkHux2H4x2w@mail.gmail.com>
Date:   Tue, 18 Aug 2020 14:50:32 +0200
From:   Miklos Szeredi <miklos@...redi.hu>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Steven Whitehouse <swhiteho@...hat.com>,
        David Howells <dhowells@...hat.com>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        Al Viro <viro@...iv.linux.org.uk>, Karel Zak <kzak@...hat.com>,
        Jeff Layton <jlayton@...hat.com>,
        Miklos Szeredi <mszeredi@...hat.com>,
        Nicolas Dichtel <nicolas.dichtel@...nd.com>,
        Christian Brauner <christian@...uner.io>,
        Lennart Poettering <lennart@...ttering.net>,
        Linux API <linux-api@...r.kernel.org>,
        Ian Kent <raven@...maw.net>,
        LSM <linux-security-module@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: file metadata via fs API

On Tue, Aug 18, 2020 at 12:44 AM Linus Torvalds
<torvalds@...ux-foundation.org> wrote:

> So please. Can we just make a simple extended statfs() and be done
> with it, instead of this hugely complex thing that does five different
> things with the same interface and makes it really odd as a result?

How do you propose handling variable size attributes, like the list of
fs options?

Otherwise I'm fine with a statx-like interface for querying fs/mount attributes.

Thanks,
Miklos