From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [PATCH 06/11] libata-eh: implement BMDMA EH Date: Mon, 15 May 2006 22:59:42 +0900 Message-ID: <4468894E.6000004@gmail.com> References: <1147353687173-git-send-email-htejun@gmail.com> <44665BEE.5020903@pobox.com> <44666EA8.6050201@gmail.com> <1147700280.26686.9.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=EUC-KR Content-Transfer-Encoding: 7bit Return-path: Received: from wr-out-0506.google.com ([64.233.184.231]:19887 "EHLO wr-out-0506.google.com") by vger.kernel.org with ESMTP id S964915AbWEON7u (ORCPT ); Mon, 15 May 2006 09:59:50 -0400 Received: by wr-out-0506.google.com with SMTP id i12so1107462wra for ; Mon, 15 May 2006 06:59:50 -0700 (PDT) In-Reply-To: <1147700280.26686.9.camel@localhost.localdomain> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Alan Cox Cc: Jeff Garzik , axboe@suse.de, albertcc@tw.ibm.com, forrest.zhao@intel.com, efalk@google.com, linux-ide@vger.kernel.org Alan Cox wrote: > On Sul, 2006-05-14 at 08:41 +0900, Tejun Heo wrote: >> else is lost. Also, please note that most traditional IDE controllers >> tend to have their own IRQ. > > Not really. You normally have one IRQ per controller for any plug in > card and that is quite often shared. > I see. But even with the shared IRQ, unconditionally clearing IRQ for short duration wouldn't cause much problem, would it? @ Out of curiosity, how old does a controller have to be to not have the ctl shadow register? -- tejun