[PATCH v8 9/9] landlock: Document IOCTL support

[Günther Noack]

Hello Mickaël!

Thanks for the review!

On Mon, Dec 11, 2023 at 08:04:33AM +0100, Mickaël Salaün wrote:
> On Fri, Dec 08, 2023 at 04:51:21PM +0100, Günther Noack wrote:
> > ++------------------------+-------------+-------------------+-------------------+
> > +|                        | ``IOCTL``   | ``IOCTL`` handled | ``IOCTL`` handled |
> > +|                        | not handled | and permitted     | and not permitted |
> > ++------------------------+-------------+-------------------+-------------------+
> > +| ``READ_FILE`` not      | allow       | allow             | deny              |
> > +| handled                |             |                   |                   |
> > ++------------------------+             +-------------------+-------------------+
> > +| ``READ_FILE`` handled  |             | allow                                 |
> > +| and permitted          |             |                                       |
> > ++------------------------+             +-------------------+-------------------+
> > +| ``READ_FILE`` handled  |             | deny                                  |
> > +| and not permitted      |             |                                       |
> > ++------------------------+-------------+-------------------+-------------------+
> 
> Great! Could you please format this table with the flat-table syntax?
> See https://docs.kernel.org/doc-guide/sphinx.html#tables

This link actually says that “Kernel style for tables is to prefer simple table
syntax or grid table syntax” (instead of the flat-table syntax).

This "visual" style is more cumbersome to edit, but editing documentation
happens less than reading it, so further edits are less likely.  I also find it
easier to reason about what the cell sizes are that way, rather than having to
wrap my head around special :rspan: and :cspan: syntax.

If you are not strongly opposed to it, I'd prefer to keep the existing style,
but we can do it either way if you feel strongly about it.  Let me know how
important this is to you.

Thanks,
—Günther