From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [PATCH 12/15] ide-cd: convert to using generic sense request Date: Sun, 19 Apr 2009 18:30:49 +0900 Message-ID: <49EAEF49.2040200@gmail.com> References: <1239960802-31978-1-git-send-email-tj@kernel.org> <1239960802-31978-13-git-send-email-tj@kernel.org> <20090419092254.GB2906@liondog.tnic> <49EAEEB8.10300@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: Received: from ti-out-0910.google.com ([209.85.142.189]:30214 "EHLO ti-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751156AbZDSJa4 (ORCPT ); Sun, 19 Apr 2009 05:30:56 -0400 Received: by ti-out-0910.google.com with SMTP id 11so1013090tim.23 for ; Sun, 19 Apr 2009 02:30:54 -0700 (PDT) In-Reply-To: <49EAEEB8.10300@kernel.org> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: petkovbb@gmail.com Cc: petkovbb@googlemail.com, bzolnier@gmail.com, axboe@kernel.dk, linux-ide@vger.kernel.org, FUJITA Tomonori Tejun Heo wrote: >> However, is there any reason for copying back the sense bytes at all? >> In other words, does the block layer code need sense data when ending a >> request or is it used only by LLDDs for error handling? And, yes, SG_IO requests need sense data copied back. Thanks. -- tejun