From: Andrew Morton <akpm@osdl.org>
To: Kevin Corry <kevcorry@us.ibm.com>
Cc: torvalds@osdl.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] 1/1: Device-Mapper: Remove 1024 devices limitation
Date: Thu, 1 Jul 2004 20:30:43 -0700 [thread overview]
Message-ID: <20040701203043.08226a0c.akpm@osdl.org> (raw)
In-Reply-To: <200407012154.16312.kevcorry@us.ibm.com>
Kevin Corry <kevcorry@us.ibm.com> wrote:
>
> > Did you consider going to a different data structure altogether?
> > lib/radix-tree.c and lib/idr.c provide appropriate ones.
>
> The idr stuff looks promising at first glance. I'll take a better look at it
> tomorrow and see if we can switch from a bit-set to one of these data
> structures.
Yes, idr is the one to use. That linear search you have in there becomes
logarithmic. Will speed up the registration of 100,000 minors no end ;)
next prev parent reply other threads:[~2004-07-02 3:31 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-01 15:35 Kevin Corry
2004-07-01 21:38 ` Andrew Morton
2004-07-02 2:54 ` Kevin Corry
2004-07-02 3:30 ` Andrew Morton [this message]
2004-07-02 17:33 ` Kevin Corry
2004-07-02 19:42 ` Andrew Morton
2004-07-06 18:23 ` Kevin Corry
2004-07-06 21:23 ` Andrew Morton
2004-07-06 21:35 ` Alasdair G Kergon
2004-07-06 22:04 ` Alasdair G Kergon
2004-07-06 22:20 ` Andrew Morton
2004-07-06 22:07 ` Jim Houston
2004-07-06 22:28 ` Andrew Morton
2004-07-06 23:00 ` Jim Houston
2004-07-06 23:16 ` Andrew Morton
2004-07-07 10:58 ` Jim Houston
2004-07-07 11:10 ` Andrew Morton
2004-07-12 14:49 ` Kevin Corry
2004-07-12 18:14 ` Andrew Morton
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