From patchwork Tue Oct 30 17:05:09 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Paul E. McKenney" X-Patchwork-Id: 12621 Return-Path: X-Original-To: patchwork@peony.canonical.com Delivered-To: patchwork@peony.canonical.com Received: from fiordland.canonical.com (fiordland.canonical.com [91.189.94.145]) by peony.canonical.com (Postfix) with ESMTP id 7448923F56 for ; Tue, 30 Oct 2012 17:34:05 +0000 (UTC) Received: from mail-ia0-f180.google.com (mail-ia0-f180.google.com [209.85.210.180]) by fiordland.canonical.com (Postfix) with ESMTP id 3FD3EA18F33 for ; Tue, 30 Oct 2012 17:34:04 +0000 (UTC) Received: by mail-ia0-f180.google.com with SMTP id f6so352395iag.11 for ; Tue, 30 Oct 2012 10:34:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=x-forwarded-to:x-forwarded-for:delivered-to:received-spf:from:to:cc :subject:date:message-id:x-mailer:in-reply-to:references :x-content-scanned:x-cbid:x-gm-message-state; bh=QyI2CIykSXCaTNv8gDNxm+82vau/iWFHgfmy+KNR8nM=; b=ivSgcSd/gcOc1Vp0BwuCfSdcXYFv+G4eon7ekhAPqGwLUYzX6qGInwgrmJ0n5ESmMs 6S4NDQBcZPwjQFKB2nAgRWD2PGyy2fZ4ir1FrwY5qhAQwskkTIGu0Jt2T4HfAiAmRNbd 8/iEjFdaP1uYZAuavZ7KnjDIOY2t4TQyARkpN5dMeziL7NP1N8Uxk+t3yz8F/sH3plm1 KoGSdeRmT0Kn1tFG6B7CEAKVpyfwUAOmlpkq6/Yt2FSNlbJusR8WKySxqFYMYhGOt6V4 f4J6ZZg4k5ba60JEeAi0Tqu9pZterN1pyuqWfytZcOkuW35Zq4CWiihUO3++UIfXvXhs LI1Q== Received: by 10.50.152.137 with SMTP id uy9mr2170945igb.62.1351618443651; Tue, 30 Oct 2012 10:34:03 -0700 (PDT) X-Forwarded-To: linaro-patchwork@canonical.com X-Forwarded-For: patch@linaro.org linaro-patchwork@canonical.com Delivered-To: patches@linaro.org Received: by 10.50.67.148 with SMTP id n20csp458138igt; Tue, 30 Oct 2012 10:34:03 -0700 (PDT) Received: by 10.50.0.140 with SMTP id 12mr2239170ige.63.1351618443253; Tue, 30 Oct 2012 10:34:03 -0700 (PDT) Received: from e4.ny.us.ibm.com (e4.ny.us.ibm.com. [32.97.182.144]) by mx.google.com with ESMTPS id bc8si1354992icb.11.2012.10.30.10.34.03 (version=TLSv1/SSLv3 cipher=OTHER); Tue, 30 Oct 2012 10:34:03 -0700 (PDT) Received-SPF: pass (google.com: domain of paulmck@linux.vnet.ibm.com designates 32.97.182.144 as permitted sender) client-ip=32.97.182.144; Authentication-Results: mx.google.com; spf=pass (google.com: domain of paulmck@linux.vnet.ibm.com designates 32.97.182.144 as permitted sender) smtp.mail=paulmck@linux.vnet.ibm.com Received: from /spool/local by e4.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 30 Oct 2012 13:34:02 -0400 Received: from d01dlp02.pok.ibm.com (9.56.250.167) by e4.ny.us.ibm.com (192.168.1.104) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; Tue, 30 Oct 2012 13:32:24 -0400 Received: from d01relay03.pok.ibm.com (d01relay03.pok.ibm.com [9.56.227.235]) by d01dlp02.pok.ibm.com (Postfix) with ESMTP id 6E1166E8055 for ; Tue, 30 Oct 2012 13:32:21 -0400 (EDT) Received: from d03av01.boulder.ibm.com (d03av01.boulder.ibm.com [9.17.195.167]) by d01relay03.pok.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id q9UHWKgG210930 for ; Tue, 30 Oct 2012 13:32:21 -0400 Received: from d03av01.boulder.ibm.com (loopback [127.0.0.1]) by d03av01.boulder.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id q9UHVYWV027273 for ; Tue, 30 Oct 2012 11:31:36 -0600 Received: from paulmck-ThinkPad-W500 (sig-9-49-139-14.mts.ibm.com [9.49.139.14]) by d03av01.boulder.ibm.com (8.14.4/8.13.1/NCO v10.0 AVin) with ESMTP id q9UHVXKA027098; Tue, 30 Oct 2012 11:31:33 -0600 Received: by paulmck-ThinkPad-W500 (Postfix, from userid 1000) id 35D76EBEE1; Tue, 30 Oct 2012 10:05:15 -0700 (PDT) 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: 12103017-3534-0000-0000-00000E5E6F06 X-Gm-Message-State: ALoCoQkW4JAjOrwF13UwClNSHJPY8fIrJxG0VCtqMTEZnPDStBty9xCT9RO7rf7eaw8Cs2aqBhM7 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,