From mboxrd@z Thu Jan 1 00:00:00 1970 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932152AbZHOQxy (ORCPT ); Sat, 15 Aug 2009 12:53:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932070AbZHOQxx (ORCPT ); Sat, 15 Aug 2009 12:53:53 -0400 Received: from e6.ny.us.ibm.com ([32.97.182.146]:46800 "EHLO e6.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755336AbZHOQxv (ORCPT ); Sat, 15 Aug 2009 12:53:51 -0400 From: "Paul E. McKenney" To: linux-kernel@vger.kernel.org Cc: mingo@elte.hu, laijs@cn.fujitsu.com, dipankar@in.ibm.com, josht@linux.vnet.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@polymtl.ca, dvhltc@us.ibm.com, niv@us.ibm.com, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, hugh.dickins@tiscali.co.uk, benh@kernel.crashing.org, "Paul E. McKenney" Subject: [PATCH -tip/core/rcu 5/6] Make rcupreempt_trace.c look at offline CPUs. Date: Sat, 15 Aug 2009 09:53:50 -0700 Message-Id: <12503552313921-git-send-email-> X-Mailer: git-send-email 1.5.2.5 In-Reply-To: <20090815165153.GA8886@linux.vnet.ibm.com> References: <20090815165153.GA8886@linux.vnet.ibm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Paul E. McKenney Given that offline CPUs can now have non-zero counters, we need to dump counters for offline CPUs as well as for online CPUs. Signed-off-by: Paul E. McKenney --- kernel/rcupreempt_trace.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff --git a/kernel/rcupreempt_trace.c b/kernel/rcupreempt_trace.c index 7c2665c..1164034 100644 --- a/kernel/rcupreempt_trace.c +++ b/kernel/rcupreempt_trace.c @@ -236,12 +236,13 @@ static ssize_t rcuctrs_read(struct file *filp, char __user *buffer, cnt += snprintf(&rcupreempt_trace_buf[cnt], RCUPREEMPT_TRACE_BUF_SIZE, "CPU last cur F M\n"); - for_each_online_cpu(cpu) { + for_each_possible_cpu(cpu) { long *flipctr = rcupreempt_flipctr(cpu); cnt += snprintf(&rcupreempt_trace_buf[cnt], RCUPREEMPT_TRACE_BUF_SIZE - cnt, - "%3d %4ld %3ld %d %d\n", + "%3d%c %4ld %3ld %d %d\n", cpu, + cpu_is_offline(cpu) ? '!' : ' ', flipctr[!f], flipctr[f], rcupreempt_flip_flag(cpu), -- 1.5.2.5