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From: "Jan Beulich" <JBeulich@novell.com>
To: Laszlo Ersek <lersek@redhat.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Subject: Re: [PATCH linux-2.6.18-xen] blktap: make max # of tap devices a module parameter
Date: Tue, 22 Feb 2011 15:49:28 +0000	[thread overview]
Message-ID: <4D63E918020000780003327C@vpn.id2.novell.com> (raw)
In-Reply-To: <4D63C644.1000503@redhat.com>

>>> On 22.02.11 at 15:20, Laszlo Ersek <lersek@redhat.com> wrote:
> Hi,
> 
> should anybody still use the blktap(1) driver in linux-2.6.18-xen, the 
> following patch intends to make the maximum number of tapdevs 
> configurable at module insertion time. The number is clamped to [256 .. 
> NR_EVENT_CHANNELS]. I removed the definition of MAX_DEV_NAME because it 
> didn't seem to be used at all.
> 
> Thanks for considering,
> Laszlo Ersek

Without replacing the call to register_chrdev() with one to
__register_chrdev() (available only with 2.6.32 and newer) I
can't see how you would get beyond 256 devices with the
changes you propose.

Jan

  reply	other threads:[~2011-02-22 15:49 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-22 14:20 [PATCH linux-2.6.18-xen] blktap: make max # of tap devices a module parameter Laszlo Ersek
2011-02-22 15:49 ` Jan Beulich [this message]
2011-02-22 17:34   ` Laszlo Ersek
2011-02-22 17:44     ` Daniel Stodden
2011-02-22 18:08       ` Laszlo Ersek
2011-02-22 18:59         ` Daniel Stodden
2011-02-23 10:38       ` Jan Beulich
2011-02-24 16:40         ` Jan Beulich
2011-02-24 19:59           ` Daniel Stodden
2011-02-24 20:10           ` Daniel Stodden
2011-02-23  9:42     ` Jan Beulich

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