From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: [RFC PATCH 2/2] netpoll: Don't poll for received packets Date: Tue, 11 Mar 2014 05:44:23 -0700 Message-ID: <1394541863.21721.25.camel@edumazet-glaptop2.roam.corp.google.com> References: <871ty9qvaf.fsf_-_@xmission.com> <87vbvlpgnk.fsf_-_@xmission.com> <1394509467.21721.2.camel@edumazet-glaptop2.roam.corp.google.com> <20140311.004217.1616529960369263682.davem@davemloft.net> <1394514158.21721.7.camel@edumazet-glaptop2.roam.corp.google.com> <87a9cxf7mp.fsf_-_@xmission.com> <87wqg1dsyw.fsf_-_@xmission.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: David Miller , netdev@vger.kernel.org, xiyou.wangcong@gmail.com, mpm@selenic.com, satyam.sharma@gmail.com To: "Eric W. Biederman" Return-path: Received: from mail-pb0-f44.google.com ([209.85.160.44]:49758 "EHLO mail-pb0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754377AbaCKMo0 (ORCPT ); Tue, 11 Mar 2014 08:44:26 -0400 Received: by mail-pb0-f44.google.com with SMTP id rp16so8758276pbb.31 for ; Tue, 11 Mar 2014 05:44:25 -0700 (PDT) In-Reply-To: <87wqg1dsyw.fsf_-_@xmission.com> Sender: netdev-owner@vger.kernel.org List-ID: On Tue, 2014-03-11 at 01:45 -0700, Eric W. Biederman wrote: > When calling drivers napi poll function pass it a budget of 0, to > request that no rx packets be processed, and warn if any rx packets > are actually processed. > > Additionally remove the drop_mon tracepoint as nothing interesting > should be happening in netpoll, and running an arbitrary tracepoint > in irq context is probably a bad idea. > > Signed-off-by: "Eric W. Biederman" > --- > net/core/netpoll.c | 28 +++++++++------------------- > 1 files changed, 9 insertions(+), 19 deletions(-) Acked-by: Eric Dumazet