linux-kernel - Re: [PATCH mmotm] tmpfs: support 64-bit inums per-sb fix

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Date:   Sat, 1 Aug 2020 20:05:39 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Hugh Dickins <hughd@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Chris Down <chris@...isdown.name>
Cc:     Al Viro <viro@...iv.linux.org.uk>,
        Matthew Wilcox <willy@...radead.org>,
        Amir Goldstein <amir73il@...il.com>,
        Jeff Layton <jlayton@...nel.org>,
        Johannes Weiner <hannes@...xchg.org>,
        Tejun Heo <tj@...nel.org>, linux-mm@...ck.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-team@...com
Subject: Re: [PATCH mmotm] tmpfs: support 64-bit inums per-sb fix

On 8/1/20 7:37 PM, Hugh Dickins wrote:
> Expanded Chris's Documentation and Kconfig help on tmpfs inode64.
> TMPFS_INODE64 still there, still default N, but writing down its very
> limited limitation does make me wonder again if we want the option.
> 
> Signed-off-by: Hugh Dickins <hughd@...gle.com>
> ---
> Andrew, please fold into tmpfs-support-64-bit-inums-per-sb.patch later.
> 
> Randy, you're very active on Documentation and linux-next: may I ask you
> please to try applying this patch to latest, and see if tmpfs.rst comes
> out looking right to you?  I'm an old dog still stuck in the days of

Hi Hugh,
It looks fine.

> tmpfs.txt, hoping to avoid new tricks for a while.  Thanks!  (Bonus
> points if you can explain what the "::" on line 122 is about. I started
> out reading Documentation/doc-guide/sphinx.rst, but... got diverted.
> Perhaps I should ask Mauro or Jon, but turning for help first to you.)

That's the correct file. Around line 216, it says:

* For inserting fixed width text blocks (for code examples, use case
  examples, etc.), use ``::`` for anything that doesn't really benefit
  from syntax highlighting, especially short snippets. Use
  ``.. code-block:: <language>`` for longer code blocks that benefit
  from highlighting. For a short snippet of code embedded in the text, use \`\`.


so it's just for a (short) code example block, fixed font...


> 
>  Documentation/filesystems/tmpfs.rst |   13 ++++++++++---
>  fs/Kconfig                          |   16 +++++++++++-----
>  2 files changed, 21 insertions(+), 8 deletions(-)
> 
> --- mmotm/Documentation/filesystems/tmpfs.rst	2020-07-27 18:54:51.116524795 -0700
> +++ linux/Documentation/filesystems/tmpfs.rst	2020-08-01 18:37:07.719713987 -0700



cheers.
-- 
~Randy