From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 25 May 2001 11:24:45 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 25 May 2001 11:24:35 -0400 Received: from t111.niisi.ras.ru ([193.232.173.111]:59744 "EHLO t111.niisi.ras.ru") by vger.kernel.org with ESMTP id ; Fri, 25 May 2001 11:24:32 -0400 Message-ID: <3B0EE8CF.7040502@niisi.msk.ru> Date: Fri, 25 May 2001 19:20:47 -0400 From: Alexandr Andreev Organization: niisi User-Agent: Mozilla/5.0 (X11; U; Linux 2.4.3 i686; en-US; rv:0.9) Gecko/20010507 X-Accept-Language: ru, en MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: Disabling interrupts before block device request call Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi, list In ll_rw_block.c, before calling block device specific request function ( i mean do_hd_request, do_ftl_request, ... ) the io_request_lock is locking, and all interrupts are disabling. I know, that request handler routine have to be atomic, but when we read data from a flash device ( for example ) we use a timeouts. Where do we have to enable timer interrupts, or should we disable all interrupts?