From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hannes Frederic Sowa Subject: Re: [PATCH RFC] ipv6_fib limit spinlock hold times for /proc/net/ipv6_route Date: Fri, 25 Apr 2014 23:31:40 +0200 Message-ID: <20140425213140.GE7050@order.stressinduktion.org> References: <535918BC.5030708@fb.com> <20140424142030.GD1960@order.stressinduktion.org> <53592287.2050902@fb.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Cc: netdev@vger.kernel.org To: Chris Mason Return-path: Received: from order.stressinduktion.org ([87.106.68.36]:40551 "EHLO order.stressinduktion.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750835AbaDYVbl (ORCPT ); Fri, 25 Apr 2014 17:31:41 -0400 Content-Disposition: inline In-Reply-To: <53592287.2050902@fb.com> Sender: netdev-owner@vger.kernel.org List-ID: On Thu, Apr 24, 2014 at 10:41:11AM -0400, Chris Mason wrote: > I was going to discuss the cache exclusion on a separate thread, but the > short version is that I don't have any clue of how many people we'd > upset by unconditionally leaving out the cached entries. In my opinion this would be ok. We definitely must reduce number of entries in the fib and I don't think it is wise to synthesize them thereafter, especially if we don't need to track state at all, e.g. forwarding.