From: Christoph Hellwig <hch@infradead.org>
To: Anton Altaparmakov <aia21@cam.ac.uk>
Cc: Barry Naujok <bnaujok@sgi.com>,
Christoph Hellwig <hch@infradead.org>,
xfs@oss.sgi.com, linux-fsdevel <linux-fsdevel@vger.kernel.org>
Subject: Re: [PATCH 3/4] XFS: Return case-insensitive match for dentry cache
Date: Thu, 15 May 2008 10:11:21 -0400 [thread overview]
Message-ID: <20080515141121.GA14198@infradead.org> (raw)
In-Reply-To: <DCB15FFF-F942-47BD-B8FB-38AADC24B9D6@cam.ac.uk>
On Thu, May 15, 2008 at 02:43:44PM +0100, Anton Altaparmakov wrote:
> Yes, and you can get the performance back if you allow negative dentries to
> be created. You just have to make sure that every time a directory entry
> is created in directory X, all negative dentries which are children of
> directory X are thrown away.
We might even be able to optimize this a little by calling d_compare on
each alias to see if it hashes down to the same one down in the fs.
next prev parent reply other threads:[~2008-05-15 14:11 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-13 7:57 [PATCH 0/4] XFS: Case-insensitive support - ASCII only Barry Naujok
2008-05-13 7:57 ` [PATCH 1/4] XFS: Name operation vector for hash and compare Barry Naujok
2008-05-13 8:31 ` Christoph Hellwig
2008-05-13 7:57 ` [PATCH 2/4] XFS: add op_flags field and helpers to xfs_da_args Barry Naujok
2008-05-13 8:34 ` Christoph Hellwig
2008-05-14 6:12 ` Barry Naujok
2008-05-13 7:57 ` [PATCH 3/4] XFS: Return case-insensitive match for dentry cache Barry Naujok
2008-05-13 8:57 ` Christoph Hellwig
2008-05-14 6:15 ` Barry Naujok
2008-05-14 7:55 ` Barry Naujok
2008-05-15 4:57 ` Christoph Hellwig
2008-05-15 5:14 ` Barry Naujok
2008-05-15 13:43 ` Anton Altaparmakov
2008-05-15 14:11 ` Christoph Hellwig [this message]
2008-05-16 0:30 ` Barry Naujok
2008-05-16 7:25 ` Anton Altaparmakov
2008-05-20 2:24 ` Barry Naujok
2008-05-20 18:23 ` Christoph Hellwig
2008-05-20 20:50 ` Sunil Mushran
2008-05-13 7:57 ` [PATCH 4/4] XFS: ASCII case-insensitive support Barry Naujok
2008-05-13 8:58 ` Christoph Hellwig
-- strict thread matches above, loose matches on Subject: below --
2008-05-14 7:52 [PATCH 0/4] XFS: ASCII case-insensitivity support Barry Naujok
2008-05-14 7:52 ` [PATCH 3/4] XFS: Return case-insensitive match for dentry cache Barry Naujok
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