linux-kernel - Re: [PATCH 00/16] dyn_array and nr

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Date:	Fri, 01 Aug 2008 21:42:54 -0700
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Yinghai Lu <yhlu.kernel@...il.com>, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Dhaval Giani <dhaval@...ux.vnet.ibm.com>,
	Mike Travis <travis@....com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 00/16] dyn_array and nr_irqs support v2

"H. Peter Anvin" <hpa@...or.com> writes:

> Eric W. Biederman wrote:
>>
>> Having a human readable name like: eth0irq22 or hbairq5 is likely just
>> as good in the case of msi.  Still all of the users interfaces today take
> numbers.
>> So we are stuck with dealing with numbers for a long time to come.
>>
>
> Long sparse numbers are messy, too, though.  It might be interesting to have a
> routine somewhere like "irq_name()" to output a human-readable IRQ name, which
> in case of MSI-X could contain the PCI device name.

Yes.  I want the option of using those bits.  It might not be smart to
use them to encode a physical location and the irq number but just
having the option would be nice.

Making /proc/interrupts useful without breaking user space is going to be
an interesting challenge one of these days.

Eric
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