All of lore.kernel.org
 help / color / mirror / Atom feed
From: Ben Myers <bpm@sgi.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: linux-fsdevel@vger.kernel.org, tinguely@sgi.com,
	Olaf Weber <olaf@sgi.com>,
	xfs@oss.sgi.com
Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS
Date: Fri, 26 Sep 2014 12:30:14 -0500	[thread overview]
Message-ID: <20140926173014.GK19952@sgi.com> (raw)
In-Reply-To: <20140926165605.GA25274@infradead.org>

Hey Christoph,

On Fri, Sep 26, 2014 at 09:56:05AM -0700, Christoph Hellwig wrote:
> On Fri, Sep 26, 2014 at 04:50:39PM +0200, Olaf Weber wrote:
> > >It's a chicken and egg situation. I'd much prefer we enforce clean
> > >utf8 from the start, because if we don't we'll never be able to do
> > >that. And other filesystems (e.g. ZFS) allow you to do reject
> > >anything that is not clean utf8....
> > 
> > As I understand it, this is optional in ZFS. I wonder what people's
> > experiences are with this.
> 
> It is as optional as your utf8 support for XFS is.  But they do
> enforce valid utf8 if they use utf8 normalization for file name
> comparisms, be that case sensitive or insensitive.  Take a look at the
> zfs(8) man page.

The way I'm reading that man page, it seems like with ZFS you have one
option to choose whether to use normalization:

'nomalization = "none|FormD|FormKCf"'

And a separate option to choose whether to accept non-utf8 filenames:

'utf8only = "on|off".

The default setting appears to be that ZFS does allow non-utf8
filenames.

Whereas with Olaf's series you have one option that turns normalization
on or off, and he is not giving you a choice of whether non-utf8
filenames will be accepted (they will be accepted).

So IIUC there is a distinction:  The utf8 support for ZFS is "more
optional" than the utf8 support for XFS.

Regards,
	Ben

_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs

      parent reply	other threads:[~2014-09-26 17:30 UTC|newest]

Thread overview: 83+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-09-18 19:56 [RFC v2] Unicode/UTF-8 support for XFS Ben Myers
2014-09-18 20:08 ` [PATCH 01/10] xfs: return the first match during case-insensitive lookup Ben Myers
2014-09-18 20:09 ` [PATCH 02/10] xfs: rename XFS_CMP_CASE to XFS_CMP_MATCH Ben Myers
2014-09-18 20:09 ` [PATCH 03/13] libxfs: add xfs_nameops.normhash Ben Myers
2014-09-18 20:10 ` [PATCH 04/10] xfs: change interface of xfs_nameops.normhash Ben Myers
2014-09-18 20:10   ` Ben Myers
2014-09-18 20:11 ` [PATCH 05/10] xfs: add a superblock feature bit to indicate UTF-8 support Ben Myers
2014-09-18 20:13 ` [PATCH 03/10] xfs: add xfs_nameops.normhash Ben Myers
2014-09-18 20:14 ` [PATCH 06/10] xfs: add unicode character database files Ben Myers
2014-09-18 20:14   ` Ben Myers
2014-09-22 20:54   ` Dave Chinner
2014-09-22 20:54     ` Dave Chinner
2014-09-26 17:09     ` Christoph Hellwig
2014-09-18 20:15 ` [PATCH 07/10] xfs: add trie generator and supporting code for UTF-8 Ben Myers
2014-09-22 20:57   ` Dave Chinner
2014-09-22 20:57     ` Dave Chinner
2014-09-23 18:57     ` Ben Myers
2014-09-26 17:10       ` Christoph Hellwig
2014-09-18 20:16 ` [PATCH 08/10] xfs: add xfs_nameops for utf8 and utf8+casefold Ben Myers
2014-09-18 20:16   ` Ben Myers
2014-09-18 20:17 ` [PATCH 09/10] xfs: apply utf-8 normalization rules to user extended attribute names Ben Myers
2014-09-18 20:18 ` [PATCH 10/10] xfs: implement demand load of utf8norm.ko Ben Myers
2014-09-18 20:31 ` [PATCH 00/13] xfsprogs: Unicode/UTF-8 support for XFS Ben Myers
2014-09-18 20:33   ` [PATCH 01/13] libxfs: return the first match during case-insensitive lookup Ben Myers
2014-09-18 20:33   ` [PATCH 02/13] libxfs: rename XFS_CMP_CASE to XFS_CMP_MATCH Ben Myers
2014-09-18 20:34   ` [PATCH 03/13] libxfs: add xfs_nameops.normhash Ben Myers
2014-09-18 20:35   ` [PATCH 04/13] libxfs: change interface of xfs_nameops.normhash Ben Myers
2014-09-18 20:35     ` Ben Myers
2014-09-18 20:36   ` [PATCH 05/13] libxfs: add a superblock feature bit to indicate UTF-8 support Ben Myers
2014-09-18 20:37   ` [PATCH 06/13] xfsprogs: add unicode character database files Ben Myers
2014-09-18 20:38   ` [PATCH 07/13] libxfs: add trie generator and supporting code for UTF-8 Ben Myers
2014-09-18 20:38   ` [PATCH 08/13] libxfs: add xfs_nameops for utf8 and utf8+casefold Ben Myers
2014-09-18 20:39   ` [PATCH 09/13] libxfs: apply utf-8 normalization rules to user extended attribute names Ben Myers
2014-09-18 20:40   ` [PATCH 10/13] xfsprogs: add utf8 support to growfs Ben Myers
2014-09-18 20:41   ` [PATCH 11/13] xfsprogs: add utf8 support to mkfs.xfs Ben Myers
2014-09-18 20:42   ` [PATCH 12/13] xfsprogs: add utf8 support to xfs_repair Ben Myers
2014-09-18 20:42     ` Ben Myers
2014-09-18 20:43   ` [PATCH 13/13] xfsprogs: add a preliminary test for utf8 support Ben Myers
2014-09-19 16:06   ` [PATCH 07a/13] xfsprogs: add trie generator for UTF-8 Ben Myers
2014-09-23 18:34     ` Roger Willcocks
2014-09-24 23:11       ` Ben Myers
2014-09-19 16:07   ` [PATCH 07b/13] libxfs: add supporting code " Ben Myers
2014-09-18 21:10 ` [RFC v2] Unicode/UTF-8 support for XFS Ben Myers
2014-09-18 21:24   ` Zach Brown
2014-09-18 21:24     ` Zach Brown
2014-09-18 22:23     ` Ben Myers
2014-09-19 16:03 ` [PATCH 07a/10] xfs: add trie generator for UTF-8 Ben Myers
2014-09-19 16:04 ` [PATCH 07b/10] xfs: add supporting code " Ben Myers
2014-09-22 14:55 ` [RFC v2] Unicode/UTF-8 support for XFS Andi Kleen
2014-09-22 14:55   ` Andi Kleen
2014-09-22 18:41   ` Ben Myers
2014-09-22 19:29     ` Andi Kleen
2014-09-22 19:29       ` Andi Kleen
2014-09-23 16:13       ` Olaf Weber
2014-09-23 20:15         ` Andi Kleen
2014-09-23 20:45           ` Ben Myers
2014-09-23 20:45             ` Ben Myers
2014-09-24 11:07           ` Olaf Weber
2014-09-26 14:06             ` Olaf Weber
2014-09-23 13:01   ` Olaf Weber
2014-09-23 20:02     ` Andi Kleen
2014-09-22 22:26 ` Dave Chinner
2014-09-22 22:26   ` Dave Chinner
2014-09-24 13:21   ` Olaf Weber
2014-09-24 13:21     ` Olaf Weber
2014-09-24 23:10     ` Dave Chinner
2014-09-24 23:10       ` Dave Chinner
2014-09-25 13:33       ` Zuckerman, Boris
2014-09-26 14:50       ` Olaf Weber
2014-09-26 16:56         ` Christoph Hellwig
2014-09-26 16:56           ` Christoph Hellwig
2014-09-26 17:04           ` Jeremy Allison
2014-09-26 17:06             ` Christoph Hellwig
2014-09-26 17:13               ` Jeremy Allison
2014-09-26 17:13                 ` Jeremy Allison
2014-09-26 19:37             ` Olaf Weber
2014-09-26 19:46               ` Jeremy Allison
2014-09-26 20:03                 ` Olaf Weber
2014-09-29 20:16                   ` J. Bruce Fields
2014-09-29 20:16                     ` J. Bruce Fields
2014-09-29 11:06               ` Christoph Hellwig
2014-09-29 11:06                 ` Christoph Hellwig
2014-09-26 17:30           ` Ben Myers [this message]

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=20140926173014.GK19952@sgi.com \
    --to=bpm@sgi.com \
    --cc=hch@infradead.org \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=olaf@sgi.com \
    --cc=tinguely@sgi.com \
    --cc=xfs@oss.sgi.com \
    /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.