From: "Theodore Ts'o" <tytso@mit.edu>
To: Chuck Lever <chuck.lever@oracle.com>
Cc: Cedric Blancher <cedric.blancher@gmail.com>,
Linux NFS Mailing List <linux-nfs@vger.kernel.org>,
linux-fsdevel <linux-fsdevel@vger.kernel.org>
Subject: Re: LInux NFSv4.1 client and server- case insensitive filesystems supported?
Date: Sun, 8 Jun 2025 20:52:44 +0000 [thread overview]
Message-ID: <20250608205244.GD784455@mit.edu> (raw)
In-Reply-To: <643072ba-3ee6-4e5b-832a-aac88a06e51d@oracle.com>
On Sun, Jun 08, 2025 at 12:29:30PM -0400, Chuck Lever wrote:
>
> For some reason I thought case-insensitivity support was merged more
> recently than that. I recall it first appearing as a session at LSF in
> Park City, but maybe that one was in 2018.
commit b886ee3e778ec2ad43e276fd378ab492cf6819b7
Author: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Date: Thu Apr 25 14:12:08 2019 -0400
ext4: Support case-insensitive file name lookups
> nfs(5) describes the lookupcache= mount option. It controls how the
> Linux NFS client caches positive and negative lookup results.
Has anyone just tried it? It might just work. To create a
case-folded directory:
# mke2fs -Fq -t ext4 -O casefold /dev/vdc
# mount /dev/vdc /vdc
# mkdir /vdc/casefold
# chattr +F /vdc/casefold
# cp /etc/issue /vdc/casefold/MaDNeSS
# cat /vdc/casefold/madness
Then export the directory and mount it via NFS, and let us know how it
goes. I'm currently on a cruise ship so it's a bit harder for me to
do the experiment myself. :-)
- Ted
next prev parent reply other threads:[~2025-06-08 20:53 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-04 17:58 LInux NFSv4.1 client and server- case insensitive filesystems supported? Cedric Blancher
2025-06-04 18:52 ` Cedric Blancher
2025-06-07 18:30 ` Chuck Lever
2025-06-07 22:39 ` Theodore Ts'o
2025-06-08 10:19 ` Jeff Layton
2025-06-08 16:29 ` Chuck Lever
2025-06-08 20:52 ` Theodore Ts'o [this message]
2025-06-08 21:52 ` Chuck Lever
2025-06-09 15:28 ` Gabriel Krisman Bertazi
2025-06-09 15:50 ` Theodore Ts'o
2025-06-09 16:41 ` Chuck Lever
2025-06-09 5:57 ` Christoph Hellwig
2025-06-09 14:16 ` Chuck Lever
2025-06-10 5:34 ` Christoph Hellwig
2025-09-09 16:06 ` NFSv4.x export options to mark export as case-insensitive, case-preserving? " Cedric Blancher
2025-09-09 16:11 ` Cedric Blancher
2025-09-09 16:11 ` Chuck Lever
2025-09-09 16:33 ` Cedric Blancher
2025-09-09 19:32 ` Chuck Lever
2025-09-10 10:44 ` Roland Mainz
2025-09-10 13:37 ` Rick Macklem
2025-09-11 8:07 ` fattr4_archive "deprecated" ? " Cedric Blancher
2025-09-11 15:01 ` Rick Macklem
2025-09-11 15:26 ` Trond Myklebust
2025-09-11 15:33 ` Cedric Blancher
2025-09-11 15:36 ` Cedric Blancher
2025-09-11 16:08 ` Cedric Blancher
2025-09-10 11:10 ` Jeff Layton
2025-09-10 14:14 ` Chuck Lever
2025-09-10 14:30 ` Jeff Layton
2025-09-10 14:35 ` Chuck Lever
2025-09-11 6:52 ` Cedric Blancher
2025-09-11 6:49 ` Cedric Blancher
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20250608205244.GD784455@mit.edu \
--to=tytso@mit.edu \
--cc=cedric.blancher@gmail.com \
--cc=chuck.lever@oracle.com \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-nfs@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox