From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eliezer Tamir Subject: Re: [PATCH net-next 2/2] net: exit busy loop when another process is runnable Date: Mon, 01 Sep 2014 09:39:39 +0300 Message-ID: <540414AB.9000004@linux.intel.com> References: <1408608310-13579-1-git-send-email-jasowang@redhat.com> <1408608310-13579-2-git-send-email-jasowang@redhat.com> <1408683665.5648.69.camel@marge.simpson.net> <53F6F14B.1030609@redhat.com> <20140822074224.GB7372@gmail.com> <53FFEEC0.4000304@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Cc: Mike Galbraith , davem@davemloft.net, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, mst@redhat.com, Peter Zijlstra , Ingo Molnar To: Jason Wang , Ingo Molnar Return-path: In-Reply-To: <53FFEEC0.4000304@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On 29/08/2014 06:08, Jason Wang wrote: > Yes, but rx busy polling only works in process context and does not > disable bh, so it may be not an issue. sk_busy_loop() uses rcu_read_lock_bh(), so it does run with bh disabled. -Eliezer