linux-kernel - Re: [RFC PATCH 2/5] misc: add documentation for FDBox

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Message-ID: <87ikok7wf4.fsf@trenco.lwn.net>
Date: Fri, 07 Mar 2025 07:22:23 -0700
From: Jonathan Corbet <corbet@....net>
To: Pratyush Yadav <ptyadav@...zon.de>, linux-kernel@...r.kernel.org
Cc: Pratyush Yadav <ptyadav@...zon.de>, Eric Biederman
 <ebiederm@...ssion.com>, Arnd Bergmann <arnd@...db.de>, Greg Kroah-Hartman
 <gregkh@...uxfoundation.org>, Alexander Viro <viro@...iv.linux.org.uk>,
 Christian Brauner <brauner@...nel.org>, Jan Kara <jack@...e.cz>, Hugh
 Dickins <hughd@...gle.com>, Alexander Graf <graf@...zon.com>, Benjamin
 Herrenschmidt <benh@...nel.crashing.org>, David
 Woodhouse <dwmw2@...radead.org>, James Gowans <jgowans@...zon.com>, Mike
 Rapoport <rppt@...nel.org>, Paolo Bonzini <pbonzini@...hat.com>, Pasha
 Tatashin <tatashin@...gle.com>, Anthony Yznaga <anthony.yznaga@...cle.com>,
 Dave Hansen <dave.hansen@...el.com>, David Hildenbrand <david@...hat.com>,
 Jason Gunthorpe <jgg@...dia.com>, Matthew Wilcox <willy@...radead.org>,
 Wei
 Yang <richard.weiyang@...il.com>, Andrew Morton
 <akpm@...ux-foundation.org>, linux-fsdevel@...r.kernel.org,
 linux-doc@...r.kernel.org, linux-mm@...ck.org, kexec@...ts.infradead.org
Subject: Re: [RFC PATCH 2/5] misc: add documentation for FDBox

Pratyush Yadav <ptyadav@...zon.de> writes:

> With FDBox in place, add documentation that describes what it is and how
> it is used, along with its UAPI and in-kernel API.
>
> Since the document refers to KHO, add a reference tag in kho/index.rst.
>
> Signed-off-by: Pratyush Yadav <ptyadav@...zon.de>
> ---
>  Documentation/filesystems/locking.rst |  21 +++
>  Documentation/kho/fdbox.rst           | 224 ++++++++++++++++++++++++++
>  Documentation/kho/index.rst           |   3 +
>  MAINTAINERS                           |   1 +
>  4 files changed, 249 insertions(+)
>  create mode 100644 Documentation/kho/fdbox.rst

Please do not create a new top-level directory under Documentation for
this; your new file belongs in userspace-api/.

>From a quick perusal of your documentation:

- You never say what "KHO" is

- Your boxes live in a single global namespace?

- What sort of access control applies to one of these boxes?  What keeps
  me from mucking around inside somebody else's box?

Thanks,

jon