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From: Ian Campbell <Ian.Campbell@eu.citrix.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: xen-devel <xen-devel@lists.xensource.com>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	"Ingo Molnar" <mingo@elte.hu>
Subject: Re: Xen and incorporating event channels in to nr_irqs
Date: Wed, 16 Feb 2011 16:27:24 +0000	[thread overview]
Message-ID: <1297873644.16356.286.camel@zakaz.uk.xensource.com> (raw)
In-Reply-To: <alpine.LFD.2.00.1102161722290.2701@localhost6.localdomain6>

On Wed, 2011-02-16 at 16:25 +0000, Thomas Gleixner wrote:
> On Wed, 16 Feb 2011, Ian Campbell wrote:
> > On a vaguely related note, what is the future of non-sparse IRQs (on x86
> > and/or generally)?
> 
> In general I want to switch everything over to SPARSE_IRQ. When the
> open coded access to irq_desc[] is gone, which should be mostly the
> case in .39 then switching everything over should be a smooth
> thing. For those archs which do not want to adjust the numbers
> dynamically we simple allocate NR_IRQS in early_irq_init(). So they
> wont even notice.

Sweet, I won't worry myself unduly over the non-SPARSE_IRQ case then.

Thanks,
Ian.



      reply	other threads:[~2011-02-16 16:27 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-16 14:59 Ian Campbell
2011-02-16 15:56 ` Thomas Gleixner
2011-02-16 16:12   ` Ian Campbell
2011-02-16 16:25     ` Thomas Gleixner
2011-02-16 16:27       ` Ian Campbell [this message]

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