From: "H. Peter Anvin" <hpa@zytor.com>
To: Tejun Heo <tj@kernel.org>
Cc: device@lanana.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Jens Axboe <jens.axboe@oracle.com>
Subject: Re: regarding major number of block extended devt
Date: Wed, 03 Sep 2008 09:27:28 -0700 [thread overview]
Message-ID: <48BEBAF0.7070008@zytor.com> (raw)
In-Reply-To: <48BEB98C.8030303@kernel.org>
Tejun Heo wrote:
> H. Peter Anvin wrote:
>> But just allocating a big bucket of device numbers and throw it all into
>> a pot semirandomly is likely to cause more damage, not less.
>
> To use ext devt, the system has to use udev for device numbers. As long
> as udev is used, the major number doesn't matter.
I'm sorry, but that's simply false. There is a *lot* of code out there
that assumes you can determine what the device is by correlating the
major number with /proc/devices.
-hpa
next prev parent reply other threads:[~2008-09-03 16:28 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-02 12:26 regarding major number of block extended devt Tejun Heo
2008-09-02 12:35 ` Tejun Heo
2008-09-02 20:16 ` H. Peter Anvin
2008-09-03 4:13 ` Tejun Heo
2008-09-03 16:12 ` H. Peter Anvin
2008-09-03 16:21 ` Tejun Heo
2008-09-03 16:27 ` H. Peter Anvin [this message]
2008-09-03 16:45 ` Tejun Heo
2008-09-03 16:57 ` H. Peter Anvin
2008-09-03 18:11 ` H. Peter Anvin
2008-09-04 0:25 ` Tejun Heo
2008-09-04 0:28 ` H. Peter Anvin
2008-09-04 0:35 ` Tejun Heo
2008-09-04 0:43 ` H. Peter Anvin
2008-09-04 11:50 ` Jens Axboe
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