Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757978Ab3DXILr (ORCPT ); Wed, 24 Apr 2013 04:11:47 -0400 Received: from www.linutronix.de ([62.245.132.108]:38560 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756156Ab3DXILo (ORCPT ); Wed, 24 Apr 2013 04:11:44 -0400 Message-ID: <517793BD.30101@linutronix.de> Date: Wed, 24 Apr 2013 10:11:41 +0200 From: Sebastian Andrzej Siewior User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.12) Gecko/20130116 Icedove/10.0.12 MIME-Version: 1.0 To: Steven Rostedt CC: linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org, Carsten Emde Subject: Re: [PREEMPT RT] SLUB and split softirq lock for v3.2-rt References: <1360771932-27150-1-git-send-email-bigeasy@linutronix.de> <1366770979.2626.3.camel@gandalf.local.home> In-Reply-To: <1366770979.2626.3.camel@gandalf.local.home> X-Enigmail-Version: 1.4.1 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2352 Lines: 64 On 04/24/2013 04:36 AM, Steven Rostedt wrote: > Hi Sebastian, Hi Steven, > Which version of 3.2-rt was this applied to. It does not apply, where > patch 7/16 totally does not apply. I looked at the history of 3.2-rt and > I can't find where it would apply. I applied them on top of 2438ee33 ("Linux 3.2.37-rt55 REBASE"). I just grabbed the patches from the mailing list and re-applied them on top of this tree and is still works. After doing the same thing on v3.2.43-rt63-rebase I got: Applying: softirq: Make serving softirqs a task flag Applying: softirq: Split handling function Applying: softirq: Split softirq locks Using index info to reconstruct a base tree... Falling back to patching base and 3-way merge... Auto-merging include/linux/sched.h Applying: rcu: rcutiny: Prevent RCU stall Applying: softirq: Adapt NOHZ softirq pending check to new RT scheme Applying: softirq: Add more debugging Applying: softirq: Fix nohz pending issue for real Applying: net: Use local_bh_disable in netif_rx_ni() Applying: FIX [1/2] slub: Do not dereference NULL pointer in node_match Applying: FIX [2/2] slub: Tid must be retrieved from the percpu area of the current processor Applying: slub: Use correct cpu_slab on dead cpu Applying: smp: introduce a generic on_each_cpu_mask() function Applying: smp: add func to IPI cpus based on parameter func Applying: slub: only IPI CPUs that have per cpu obj to flush Applying: mm: Enable SLUB for RT Applying: slub: Enable irqs for __GFP_WAIT git did not complain about patch 7 ("softirq: Fix nohz pending issue for real") but about 3 ("softirq: Split softirq locks"). The diff between the two queues (except different sha1, index and so) is: --- old/0003-softirq-Split-softirq-locks.patch +++ new/0003-softirq-Split-softirq-locks.patch @@ -60,8 +60,8 @@ int softirq_nestcnt; + unsigned int softirqs_raised; #endif - #if defined CONFIG_PREEMPT_RT_FULL && defined CONFIG_HIGHMEM - int kmap_idx; + #ifdef CONFIG_PREEMPT_RT_FULL + # if defined CONFIG_HIGHMEM || defined CONFIG_X86_32 and this looks good. > Thanks, > > -- Steve Sebastian -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/