From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-f176.google.com (mail-wi0-f176.google.com [209.85.212.176]) by kanga.kvack.org (Postfix) with ESMTP id 19DDE6B0031 for ; Tue, 1 Apr 2014 13:20:23 -0400 (EDT) Received: by mail-wi0-f176.google.com with SMTP id r20so5612802wiv.15 for ; Tue, 01 Apr 2014 10:20:22 -0700 (PDT) Received: from lxorguk.ukuu.org.uk (lxorguk.ukuu.org.uk. [81.2.110.251]) by mx.google.com with ESMTPS id i2si5333991wjn.131.2014.04.01.10.20.10 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 01 Apr 2014 10:20:21 -0700 (PDT) Date: Tue, 1 Apr 2014 17:59:47 +0100 From: One Thousand Gnomes Subject: Re: [PATCH RFC] drivers/char/mem: byte generating devices and poisoned mappings Message-ID: <20140401175947.5b5a3298@alan.etchedpixels.co.uk> In-Reply-To: <20140331211607.26784.43976.stgit@zurg> References: <20140331211607.26784.43976.stgit@zurg> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Konstantin Khlebnikov Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Hugh Dickins , Yury Gribov , Alexandr Andreev , Vassili Karpov , Andrew Morton , "Kirill A. Shutemov" On Tue, 01 Apr 2014 01:16:07 +0400 Konstantin Khlebnikov wrote: > This patch adds 256 virtual character devices: /dev/byte0, ..., /dev/byte255. > Each works like /dev/zero but generates memory filled with particular byte. More kernel code for an ultra-obscure corner case that can be done in user space I don't see the point Alan -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org