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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 14:38:57 -0700	[thread overview]
Message-ID: <20040701143857.256959e5.akpm@osdl.org> (raw)
In-Reply-To: <200407011035.13283.kevcorry@us.ibm.com>

Kevin Corry <kevcorry@us.ibm.com> wrote:
>
> Remove the limitation of 1024 DM devices.

That seems to be an awful lot of fuss just to maintain a bitmap.

What is a realistic useful upper bound on the minors?  Would it not be sufficient
to increase the size of the statically allocated bitmap?

Did you consider going to a different data structure altogether?  lib/radix-tree.c and
lib/idr.c provide appropriate ones.

  reply	other threads:[~2004-07-01 21:36 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 [this message]
2004-07-02  2:54   ` Kevin Corry
2004-07-02  3:30     ` Andrew Morton
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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