From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965169Ab2J3ReL (ORCPT ); Tue, 30 Oct 2012 13:34:11 -0400 Received: from e37.co.us.ibm.com ([32.97.110.158]:35495 "EHLO e37.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S964958Ab2J3ReF (ORCPT ); Tue, 30 Oct 2012 13:34:05 -0400 From: "Paul E. McKenney" To: linux-kernel@vger.kernel.org Cc: mingo@elte.hu, laijs@cn.fujitsu.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@polymtl.ca, josh@joshtriplett.org, niv@us.ibm.com, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, Valdis.Kletnieks@vt.edu, dhowells@redhat.com, edumazet@google.com, darren@dvhart.com, fweisbec@gmail.com, sbw@mit.edu, patches@linaro.org, Michael Wang , "Paul E. McKenney" Subject: [PATCH tip/core/rcu 10/14] rcu: split 'rcuboost' to each flavor Date: Tue, 30 Oct 2012 10:05:09 -0700 Message-Id: <1351616713-26930-10-git-send-email-paulmck@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.8 In-Reply-To: <1351616713-26930-1-git-send-email-paulmck@linux.vnet.ibm.com> References: <20121030170454.GA25712@linux.vnet.ibm.com> <1351616713-26930-1-git-send-email-paulmck@linux.vnet.ibm.com> X-Content-Scanned: Fidelis XPS MAILER x-cbid: 12103017-7408-0000-0000-000009C5CAC5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Michael Wang This patch add new 'rcuboost' to each flavor's folder, now we could use: 'cat /debugfs/rcu/rsp/rcuboost' to get the selected rsp info. Signed-off-by: Michael Wang Signed-off-by: Paul E. McKenney --- kernel/rcutree_trace.c | 11 ++++++++++- 1 files changed, 10 insertions(+), 1 deletions(-) diff --git a/kernel/rcutree_trace.c b/kernel/rcutree_trace.c index 8b03bfb..b6fd147 100644 --- a/kernel/rcutree_trace.c +++ b/kernel/rcutree_trace.c @@ -239,7 +239,7 @@ static const struct file_operations rcu_node_boost_fops = { .owner = THIS_MODULE, .open = rcu_node_boost_open, .read = seq_read, - .llseek = seq_lseek, + .llseek = no_llseek, .release = single_release, }; @@ -456,6 +456,15 @@ static int __init rcutree_trace_init(void) rspdir, rsp, &new_rcubarrier_fops); if (!retval) goto free_out; + +#ifdef CONFIG_RCU_BOOST + if (rsp == &rcu_preempt_state) { + retval = debugfs_create_file("rcuboost", 0444, + rspdir, NULL, &rcu_node_boost_fops); + if (!retval) + goto free_out; + } +#endif } retval = debugfs_create_file("rcubarrier", 0444, rcudir, -- 1.7.8