From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 6 Jun 2001 17:45:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 6 Jun 2001 17:45:48 -0400 Received: from router-100M.swansea.linux.org.uk ([194.168.151.17]:49936 "EHLO the-village.bc.nu") by vger.kernel.org with ESMTP id ; Wed, 6 Jun 2001 17:45:37 -0400 Subject: Re: Linux 2.4.5-ac9 To: t.sailer@alumni.ethz.ch Date: Wed, 6 Jun 2001 22:43:31 +0100 (BST) Cc: laughing@shared-source.org (Alan Cox), linux-kernel@vger.kernel.org In-Reply-To: <3B1DF4BC.6A8C5CBC@scs.ch> from "Thomas Sailer" at Jun 06, 2001 11:15:40 AM X-Mailer: ELM [version 2.5 PL3] MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-Id: From: Alan Cox Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > Looks bogus. Independent processes can open the same device > once for reading and once for writing, now you are serializing > needlessly these processes. Please revert. Some of the serializing is not a bug but I agree that patch is not yet right. Think for example about thread1 thread2 write blocks mmap Also parallel buffer allocations Alan