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Date: Sun, 14 Sep 2008 17:40:46 +0200
From: Ingo Molnar <mingo@elte.hu>
To: Dean Nelson <dcn@sgi.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>, Alan Mayer <ajm@sgi.com>,
       jeremy@goop.org, rusty@rustcorp.com.au, suresh.b.siddha@intel.com,
       torvalds@linux-foundation.org, linux-kernel@vger.kernel.org,
       "H. Peter Anvin" <hpa@zytor.com>, Thomas Gleixner <tglx@linutronix.de>,
       Yinghai Lu <Yinghai.lu@amd.com>
Subject: Re: [RFC 4/4] switch non-standard SYSCALL_VECTOR allocation to use
	vector_irq[]
Message-ID: <20080914154046.GL29290@elte.hu>
References: <489C6844.9050902@sgi.com> <20080811165930.GI4524@elte.hu> <48A0737F.9010207@sgi.com> <m1y733mjdh.fsf@frodo.ebiederm.org> <20080911152304.GA13655@sgi.com> <20080911152940.GE13655@sgi.com>
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* Dean Nelson <dcn@sgi.com> wrote:

> Replace the current use of used_vectors[] for the allocation of a 
> non-standard SYSCALL_VECTOR by also using the per_cpu variable 
> vector_irq[].

this:

> Index: linux/arch/x86/kernel/traps_32.c
> ===================================================================
> --- linux.orig/arch/x86/kernel/traps_32.c	2008-09-10 14:25:23.000000000 -0500
> +++ linux/arch/x86/kernel/traps_32.c	2008-09-10 14:25:28.000000000 -0500

> +	ret = __grab_irq_vector(NON_IRQ_DESC, SYSCALL_VECTOR,
> +				&cpu_possible_map);

break the build if IO_APIC is disabled. (see previous mail)

	Ingo