From: Kevin Corry <kevcorry@us.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: Andrew Morton <akpm@osdl.org>,
jim.houston@comcast.net, dm-devel@redhat.com, torvalds@osdl.org,
agk@redhat.com
Subject: Re: [PATCH] 1/1: Device-Mapper: Remove 1024 devices limitation
Date: Mon, 12 Jul 2004 09:49:03 -0500 [thread overview]
Message-ID: <200407120949.03928.kevcorry@us.ibm.com> (raw)
In-Reply-To: <20040707041059.17287591.akpm@osdl.org>
On Wednesday 07 July 2004 6:10 am, Andrew Morton wrote:
> Jim Houston <jim.houston@comcast.net> wrote:
> >
> > Hi Andrew,
> >
> > It's not quite right. If you want to keep a count in the upper bits
> > you have to mask off that count before checking if the id is beyond the
> > end of the allocated space.
>
> OK, I'll fix that up.
>
> But I don't want to keep a count in the upper bits! I want rid of that
> stuff altogether, completely, all of it. It just keeps on hanging around
> :(
>
> We should remove MAX_ID_* from the kernel altogether.
Just following up on the proposed IDR changes. Based on the patches in the
latest -mm tree, I'm assuming there is or will be a fix for IDR so it will
always return NULL when asked to find an id that's not currently allocated.
Is this correct? If so, I can drop the second "dm-use-idr" patch (from July
6, 2004) and keep the one that's currently in -mm.
Thanks!
--
Kevin Corry
kevcorry@us.ibm.com
http://evms.sourceforge.net/
next prev parent reply other threads:[~2004-07-12 14:49 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-01 15:35 [PATCH] 1/1: Device-Mapper: Remove 1024 devices limitation Kevin Corry
2004-07-01 21:38 ` Andrew Morton
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 [this message]
2004-07-12 18:14 ` Andrew Morton
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