linux-kernel - Re: [PATCH 11/12] libata: use IRQ expecting

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Message-ID: <4C3D6E0F.20605@garzik.org>
Date:	Wed, 14 Jul 2010 03:58:07 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	Tejun Heo <tj@...nel.org>
CC:	mingo@...e.hu, tglx@...utronix.de, bphilips@...e.de,
	yinghai@...nel.org, akpm@...ux-foundation.org,
	torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org,
	linux-ide@...r.kernel.org, stern@...land.harvard.edu,
	gregkh@...e.de, khali@...ux-fr.org
Subject: Re: [PATCH 11/12] libata: use IRQ expecting

On 07/10/2010 06:06 AM, Tejun Heo wrote:
> On 07/02/2010 04:41 PM, Tejun Heo wrote:
>> Hello, Jeff.
>>
>> So, something like the following.  This should be applied on top of
>> the two previous libata patches.  The amount of code in the hot path
>> is very small.  Compared to the cpu actually taking an interrupt and
>> accessing hardware, it should be negligible, and this will give us
>> working and acceptably performing systems in the presence of most
>> types of IRQ problems.
>
> Ping.

Give me another day or two.  I'm working up an alternate patch for 
demonstration (still use the irq-expecting api, but differently).

	Jeff



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