From: "Theodore Ts'o" <tytso@mit.edu>
To: "André Almeida" <andrealmeid@igalia.com>
Cc: Hugh Dickins <hughd@google.com>,
Andrew Morton <akpm@linux-foundation.org>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Christian Brauner <brauner@kernel.org>, Jan Kara <jack@suse.cz>,
krisman@kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
kernel-dev@igalia.com, Daniel Rosenberg <drosen@google.com>,
smcv@collabora.com, Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH v2 4/8] unicode: Recreate utf8_parse_version()
Date: Tue, 3 Sep 2024 07:41:34 -0400 [thread overview]
Message-ID: <20240903114134.GD1002375@mit.edu> (raw)
In-Reply-To: <20240902225511.757831-5-andrealmeid@igalia.com>
On Mon, Sep 02, 2024 at 07:55:06PM -0300, André Almeida wrote:
> All filesystems that currently support UTF-8 casefold can fetch the
> UTF-8 version from the filesystem metadata stored on disk. They can get
> the data stored and directly match it to a integer, so they can skip the
> string parsing step, which motivated the removal of this function in the
> first place.
>
> However, for tmpfs, the only way to tell the kernel which UTF-8 version
> we are about to use is via mount options, using a string. Re-introduce
> utf8_parse_version() to be used by tmpfs.
>
> This version differs from the original by skipping the intermediate step
> of copying the version string to an auxiliary string before calling
> match_token(). This versions calls match_token() in the argument string.
>
> utf8_parse_version() was created by 9d53690f0d4 ("unicode: implement
> higher level API for string handling") and later removed by 49bd03cc7e9
> ("unicode: pass a UNICODE_AGE() tripple to utf8_load").
>
> Signed-off-by: André Almeida <andrealmeid@igalia.com>
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
next prev parent reply other threads:[~2024-09-03 11:42 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-02 22:55 [PATCH v2 0/8] tmpfs: Add case-insesitive support for tmpfs André Almeida
2024-09-02 22:55 ` [PATCH v2 1/8] unicode: Fix utf8_load() error path André Almeida
2024-09-03 11:40 ` Theodore Ts'o
2024-09-03 16:48 ` Gabriel Krisman Bertazi
2024-09-02 22:55 ` [PATCH v2 2/8] unicode: Create utf8_check_strict_name André Almeida
2024-09-03 9:04 ` kernel test robot
2024-09-03 11:36 ` Theodore Ts'o
2024-09-03 15:34 ` Gabriel Krisman Bertazi
2024-09-02 22:55 ` [PATCH v2 3/8] ext4: Use utf8_check_strict_name helper André Almeida
2024-09-03 11:37 ` Theodore Ts'o
2024-09-02 22:55 ` [PATCH v2 4/8] unicode: Recreate utf8_parse_version() André Almeida
2024-09-03 11:41 ` Theodore Ts'o [this message]
2024-09-02 22:55 ` [PATCH v2 5/8] tmpfs: Add casefold lookup support André Almeida
2024-09-03 16:08 ` Gabriel Krisman Bertazi
2024-09-02 22:55 ` [PATCH v2 6/8] tmpfs: Add flag FS_CASEFOLD_FL support for tmpfs dirs André Almeida
2024-09-03 9:04 ` kernel test robot
2024-09-03 9:04 ` kernel test robot
2024-09-03 16:15 ` Gabriel Krisman Bertazi
2024-09-04 22:28 ` André Almeida
2024-09-02 22:55 ` [PATCH v2 7/8] tmpfs: Expose filesystem features via sysfs André Almeida
2024-09-02 22:55 ` [PATCH v2 8/8] docs: tmpfs: Add casefold options André Almeida
2024-09-03 16:38 ` Gabriel Krisman Bertazi
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=20240903114134.GD1002375@mit.edu \
--to=tytso@mit.edu \
--cc=akpm@linux-foundation.org \
--cc=andrealmeid@igalia.com \
--cc=brauner@kernel.org \
--cc=drosen@google.com \
--cc=hch@lst.de \
--cc=hughd@google.com \
--cc=jack@suse.cz \
--cc=kernel-dev@igalia.com \
--cc=krisman@kernel.org \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=smcv@collabora.com \
--cc=viro@zeniv.linux.org.uk \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.