From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH] Break up the single NBD lock into one per NBD device Date: Thu, 06 Oct 2011 15:37:40 -0400 (EDT) Message-ID: <20111006.153740.1653912067120856697.davem@davemloft.net> References: <1317080052-6052-1-git-send-email-hkchu@google.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: hkchu@google.com Return-path: Received: from shards.monkeyblade.net ([198.137.202.13]:46855 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759142Ab1JFTho (ORCPT ); Thu, 6 Oct 2011 15:37:44 -0400 In-Reply-To: <1317080052-6052-1-git-send-email-hkchu@google.com> Sender: netdev-owner@vger.kernel.org List-ID: From: "H.K. Jerry Chu" Date: Mon, 26 Sep 2011 16:34:12 -0700 > From: Jerry Chu > > This patch breaks up the single NBD lock into one per > disk. The single NBD lock has become a serious performance > bottleneck when multiple NBD disks are being used. > > The original comment on why a single lock may be ok no > longer holds for today's much faster NICs. > > Signed-off-by: H.K. Jerry Chu Acked-by: David S. Miller Even though this is a "networking" block device, I think this change should go through the Jens Axboe's block layer tree. Thanks.