Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 28 Oct 2000 10:33:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 28 Oct 2000 10:33:05 -0400 Received: from [195.180.174.143] ([195.180.174.143]:12160 "EHLO ghanima.neukum.org") by vger.kernel.org with ESMTP id ; Sat, 28 Oct 2000 10:32:53 -0400 From: Oliver Neukum Date: Sat, 28 Oct 2000 16:31:35 +0200 X-Mailer: KMail [version 1.1.99] Content-Type: text/plain; charset=US-ASCII To: linux-kernel@vger.kernel.org Subject: question on SMP and read()/write() MIME-Version: 1.0 Message-Id: <00102816313507.00773@ghanima> Content-Transfer-Encoding: 7BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi, I've noticed that sys_read() and sys_write() don't grab the big kernel lock. As file descriptors may be shared, must device drivers provide SMP safe read() and write() methods ? TIA Oliver - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/