From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751426AbaHJIOz (ORCPT ); Sun, 10 Aug 2014 04:14:55 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:38555 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751194AbaHJIOy (ORCPT ); Sun, 10 Aug 2014 04:14:54 -0400 Date: Sun, 10 Aug 2014 10:14:25 +0200 From: Peter Zijlstra To: "Paul E. McKenney" Cc: linux-kernel@vger.kernel.org, mingo@kernel.org, laijs@cn.fujitsu.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, josh@joshtriplett.org, tglx@linutronix.de, rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com, dvhart@linux.intel.com, fweisbec@gmail.com, oleg@redhat.com, bobby.prani@gmail.com Subject: Re: [PATCH v3 tip/core/rcu 1/9] rcu: Add call_rcu_tasks() Message-ID: <20140810081425.GT9918@twins.programming.kicks-ass.net> References: <20140731215445.GA21933@linux.vnet.ibm.com> <1406843709-23396-1-git-send-email-paulmck@linux.vnet.ibm.com> <20140808191326.GE3935@laptop> <20140808205826.GG5821@linux.vnet.ibm.com> <20140809061514.GK9918@twins.programming.kicks-ass.net> <20140809160137.GJ5821@linux.vnet.ibm.com> <20140809181920.GO9918@twins.programming.kicks-ass.net> <20140809182400.GJ3588@twins.programming.kicks-ass.net> <20140810012924.GO5821@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="8XzOrflVn8HobiNv" Content-Disposition: inline In-Reply-To: <20140810012924.GO5821@linux.vnet.ibm.com> User-Agent: Mutt/1.5.21 (2012-12-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --8XzOrflVn8HobiNv Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Aug 09, 2014 at 06:29:24PM -0700, Paul E. McKenney wrote: > On Sat, Aug 09, 2014 at 08:24:00PM +0200, Peter Zijlstra wrote: > > On Sat, Aug 09, 2014 at 08:19:20PM +0200, Peter Zijlstra wrote: > > > How about we simply assume 'idle' code, as defined by the rcu idle ho= oks > > > are safe? Why do we want to bend over backwards to cover this? > >=20 > > The thing is, we already have the special rcu trace hooks for tracing > > inside this rcu-idle section, so why go beyond this now? >=20 > I have to defer to Steven and Masami on this one, but I would guess that > they want the ability to trace the idle loop for the same reasons they > stated earlier. want want want, I want a damn pony but somehow I'm not getting one. Why are they getting this? --8XzOrflVn8HobiNv Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAEBAgAGBQJT5ynhAAoJEHZH4aRLwOS6+B8QAKwY6OGwy87K6O2DXYLJzEOK jFIXO/dKyEbbdkVowLlRQbeAVbgwzY/iCecUXiuSyb/jzKS8/jS0Us99dUtrXkzm zjbtKLsItDbH1pWPqVzNFlkx7N093z51flXIR446+pwUKiWJ2+w5HMId+DaYwxWT AoB0NFiNiOM4nCc0cJ3v/1OhYqNm4hpQ2cOs5T5QS+uZxgDB8CdcxKT0Nfe6Ley0 Yz428tYIocvPtNWG9Ke0UuE/TB6GkqlvKty3pKpT2fHervGx6GWPVuX9kqhvYgjG 89alFQ6cXtiJIXyPvPuPgsn2nl3K23SrlN/JQdMLPnDA7t9yZA/6Ppa7NAQMtoWM Ni/FOLHGtLLWslrYM4lKUmF0p+P84l8ewbIGnUQEEm1wdCC6Aj7OghnlUQ0uvb09 7MIx38MmollbfRECGPrjI9ezZWAa9FvkgygK7b35twjWCpZHLALvJClIjOeb4Md3 v9rO6Zbq+tjRONzlWYtlk/vQh0XxQ8BbdmFe5ZminrxdyZfUNysMoGq7Mxx/KXIk 1/25QXfHHPDkKEpqWC2JJiB3NpO5tQjgyHY/KO+muLsvCECQ1bq0TQU+CsE0NP/5 eMM085/nUmhfblfkufv3A03ZGTdxmDkLtqyqgB0xKNU2qU+e2aGPzGgGOGNjFn5s Y/9cHY8EV/0mDX1XLbL0 =aOuH -----END PGP SIGNATURE----- --8XzOrflVn8HobiNv--