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From: Jeremy Allison <jra@samba.org>
To: Christoph Hellwig <hch@infradead.org>
Cc: tinguely@sgi.com, xfs@oss.sgi.com, Ben Myers <bpm@sgi.com>,
	Olaf Weber <olaf@sgi.com>,
	linux-fsdevel@vger.kernel.org
Subject: Re: [RFC v2] Unicode/UTF-8 support for XFS
Date: Fri, 26 Sep 2014 10:04:07 -0700	[thread overview]
Message-ID: <20140926170407.GB6012@samba2> (raw)
In-Reply-To: <20140926165605.GA25274@infradead.org>

On Fri, Sep 26, 2014 at 09:56:05AM -0700, Christoph Hellwig wrote:
> 
> My take on this is:
> 
>  - I think we'll have to prevent non-utf8 file names for any cases where
>    we use utf8 normalization.  If you do not use utf8 normalization
>    it's plain old Unix everything is allowed.
>  
>  - I think utf8 normalization vs not should be mkfs option, to make sure
>    everyone including kernel and repair knows what sort of filesystem
>    deal with.
> 
>  - case insensitive matching for utf8 normalized filesystems should be
>    a runtime decision.  mount time for now, but Samba people would be
>    extremly happy to allow per-operation or per-process CI matching.
>    But that is another totally different discusion I'd like to keep
>    separate, I just want to make sure the disk format allows for it for
>    now.

Actually, I'm so eager for case-insensitive matching I'd
take "at format time", as with ZFS :-) :-).

Having CI matching can speed up Samba operations by a
factor of 10 on large directories (warning, number made
up, depending on the number of entries per dir :-).

Jeremy.

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  reply	other threads:[~2014-09-26 17:04 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 [this message]
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

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