Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752900Ab0GNH6O (ORCPT ); Wed, 14 Jul 2010 03:58:14 -0400 Received: from mail-gy0-f174.google.com ([209.85.160.174]:43206 "EHLO mail-gy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751951Ab0GNH6M (ORCPT ); Wed, 14 Jul 2010 03:58:12 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=sender:message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; b=J/7ZCRjA9nDEPDijwqPOZDw9Em4j1mEcfhVk7g0Rj8O3zp4umAAfncI8yewB06CNz1 sRzzjHs/7B4SU+eLZD7IFDUchnDvsSybqjlrQzz3JB827+PGa5q/L5G7B3J0wIRDWVWz CxTextVQINwCrWZQHNoMLDamb/UE2mjdyxtLM= Message-ID: <4C3D6E0F.20605@garzik.org> Date: Wed, 14 Jul 2010 03:58:07 -0400 From: Jeff Garzik User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100430 Fedora/3.0.4-2.fc12 Thunderbird/3.0.4 MIME-Version: 1.0 To: Tejun Heo CC: mingo@elte.hu, tglx@linutronix.de, bphilips@suse.de, yinghai@kernel.org, akpm@linux-foundation.org, torvalds@linux-foundation.org, linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org, stern@rowland.harvard.edu, gregkh@suse.de, khali@linux-fr.org Subject: Re: [PATCH 11/12] libata: use IRQ expecting References: <1276443098-20653-1-git-send-email-tj@kernel.org> <1276443098-20653-12-git-send-email-tj@kernel.org> <4C23F6C1.7070603@garzik.org> <4C245E50.7090701@kernel.org> <4C2577F2.4030005@garzik.org> <4C25BAD2.4070705@kernel.org> <4C25C551.8000404@garzik.org> <4C25CC18.2070507@kernel.org> <4C2DFAB0.3020703@kernel.org> <4C384620.8040808@kernel.org> In-Reply-To: <4C384620.8040808@kernel.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 883 Lines: 25 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/