From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 7 Jul 2001 01:45:14 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 7 Jul 2001 01:45:04 -0400 Received: from [203.199.75.248] ([203.199.75.248]:16705 "EHLO indiainfo.com") by vger.kernel.org with ESMTP id ; Sat, 7 Jul 2001 01:45:01 -0400 From: "gopi krishna" Subject: device plugging To: linux-kernel@vger.kernel.org X-Mailer: CommuniGate Pro Web Mailer v.3.4.7 Date: Sat, 07 Jul 2001 11:10:43 +0530 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Why do we need a dummy req for plugging. As i understood only thing plugging does is to, on arrival of new req if the dev queue is empty, puts a dummy req on the queue, and schedules the unplug routine on tq_disk, which on being scheduled calls the strategy routine. So we can as well put the new req on the queue without dummy req. If i'm incorrect please explain what's exact process and the reason Please cc the response to mgopi@indiainfo.com as i'm not subscribed. thanks ---------------------------------------- http://mail.indiainfo.com First you had 10MB of free mail space. Now you can send mails in your own language !!!