From: Chris Mason <mason@suse.com>
To: Matthew Wilcox <matthew@wil.cx>
Cc: "Halfmann, Klaus" <khalfmann@libra.de>,
Roman Zippel <roman@augan.com>,
linuxppc-dev@lists.linuxppc.org, linux-fsdevel@vger.kernel.org
Subject: Re: Btree directories (Re: Status of HFS+ support)
Date: Wed, 30 Aug 2000 14:25:46 GMT [thread overview]
Message-ID: <20000830.14254600@coffee.suse.com> (raw)
In-Reply-To: <20000829181851.D6395@parcelfarce.linux.theplanet.co.uk>
On 8/29/00, 1:18:51 PM, Matthew Wilcox <matthew@wil.cx> wrote regarding
Btree directories (Re: Status of HFS+ support):
[ 32 bit directory offsets ]
> Hmmm.. now the LFS patches have gone in and f_pos is now a 64-bit
quantity,
> this sounds more plausible. I'd be curious to hear from the ReiserFS
> people how they solved this problem.
In reiserfs, the offset in the directory is a hash of the file name. The
directories are sparse, so we could have a directory with 4 items,
offsets 1, 2, 32458, 2million. The hash of a given item never changes,
new items can be inserted or removed from either side of any existing
item (except . and ..)
-chris
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2000-08-30 14:25 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-08-29 16:40 Status of HFS+ support (was hfs support for blocksize != 512) Halfmann, Klaus
2000-08-29 17:18 ` Btree directories (Re: Status of HFS+ support) Matthew Wilcox
2000-08-29 18:45 ` Steve Lord
2000-08-29 21:25 ` Matthew Wilcox
2000-08-30 2:22 ` flar
2000-08-30 8:35 ` Andi Kleen
2000-08-30 14:25 ` Chris Mason [this message]
2000-08-29 18:16 ` Status of HFS+ support (was hfs support for blocksize != 512) Roman Zippel
-- strict thread matches above, loose matches on Subject: below --
2000-08-30 12:06 Btree directories (Re: Status of HFS+ support) Steve Lord
2000-08-30 15:07 ` Andi Kleen
2000-08-30 16:07 ` flar
2000-08-30 20:49 ` David A. Gatwood
2000-08-30 20:45 ` Steve Lord
2000-08-30 21:05 ` Alexander Viro
2000-08-30 21:51 ` David A. Gatwood
2000-08-30 21:49 ` Alexander Viro
2000-08-30 22:13 ` David A. Gatwood
2000-08-30 22:17 ` Alexander Viro
2000-08-30 23:11 ` David A. Gatwood
2000-08-31 0:10 ` Alexander Viro
2000-08-31 5:49 ` flar
2000-08-31 10:33 ` Alexander Viro
2000-08-31 17:48 ` flar
2000-08-31 19:54 ` Alexander Viro
2000-08-31 22:09 ` flar
2000-09-01 2:40 ` Alexander Viro
2000-09-01 3:52 ` flar
2000-09-02 4:04 ` Tony Mantler
2000-09-01 17:05 Halfmann, Klaus
2000-09-01 17:40 ` flar
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