From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753377AbcCATxv (ORCPT ); Tue, 1 Mar 2016 14:53:51 -0500 Received: from torg.zytor.com ([198.137.202.12]:44144 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752718AbcCATxu (ORCPT ); Tue, 1 Mar 2016 14:53:50 -0500 Date: Tue, 1 Mar 2016 11:52:59 -0800 From: tip-bot for Thomas Gleixner Message-ID: Cc: akpm@linux-foundation.org, torvalds@linux-foundation.org, rusty@rustcorp.com.au, linux-kernel@vger.kernel.org, rafael.j.wysocki@intel.com, pjt@google.com, srivatsa@mit.edu, mingo@kernel.org, oleg@redhat.com, tglx@linutronix.de, tj@kernel.org, bigeasy@linutronix.de, paulmck@linux.vnet.ibm.com, peterz@infradead.org, hpa@zytor.com, rostedt@goodmis.org, arjan@linux.intel.com, riel@redhat.com Reply-To: oleg@redhat.com, mingo@kernel.org, rusty@rustcorp.com.au, rafael.j.wysocki@intel.com, linux-kernel@vger.kernel.org, pjt@google.com, srivatsa@mit.edu, akpm@linux-foundation.org, torvalds@linux-foundation.org, rostedt@goodmis.org, arjan@linux.intel.com, riel@redhat.com, bigeasy@linutronix.de, peterz@infradead.org, paulmck@linux.vnet.ibm.com, hpa@zytor.com, tglx@linutronix.de, tj@kernel.org In-Reply-To: <20160226182340.593563875@linutronix.de> References: <20160226182340.593563875@linutronix.de> To: linux-tip-commits@vger.kernel.org Subject: [tip:smp/hotplug] cpu/hotplug: Add tracepoints Git-Commit-ID: 5ba9ac8e2c45ab165e5b4a246f4821d319656e9d X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 5ba9ac8e2c45ab165e5b4a246f4821d319656e9d Gitweb: http://git.kernel.org/tip/5ba9ac8e2c45ab165e5b4a246f4821d319656e9d Author: Thomas Gleixner AuthorDate: Fri, 26 Feb 2016 18:43:27 +0000 Committer: Thomas Gleixner CommitDate: Tue, 1 Mar 2016 20:36:54 +0100 cpu/hotplug: Add tracepoints We want to trace the hotplug machinery. Add tracepoints to track the invocation of callbacks and their result. Signed-off-by: Thomas Gleixner Cc: linux-arch@vger.kernel.org Cc: Rik van Riel Cc: Rafael Wysocki Cc: "Srivatsa S. Bhat" Cc: Peter Zijlstra Cc: Arjan van de Ven Cc: Sebastian Siewior Cc: Rusty Russell Cc: Steven Rostedt Cc: Oleg Nesterov Cc: Tejun Heo Cc: Andrew Morton Cc: Paul McKenney Cc: Linus Torvalds Cc: Paul Turner Link: http://lkml.kernel.org/r/20160226182340.593563875@linutronix.de Signed-off-by: Thomas Gleixner --- include/trace/events/cpuhp.h | 66 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) diff --git a/include/trace/events/cpuhp.h b/include/trace/events/cpuhp.h new file mode 100644 index 0000000..a72bd93 --- /dev/null +++ b/include/trace/events/cpuhp.h @@ -0,0 +1,66 @@ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM cpuhp + +#if !defined(_TRACE_CPUHP_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_CPUHP_H + +#include + +TRACE_EVENT(cpuhp_enter, + + TP_PROTO(unsigned int cpu, + int target, + int idx, + int (*fun)(unsigned int)), + + TP_ARGS(cpu, target, idx, fun), + + TP_STRUCT__entry( + __field( unsigned int, cpu ) + __field( int, target ) + __field( int, idx ) + __field( void *, fun ) + ), + + TP_fast_assign( + __entry->cpu = cpu; + __entry->target = target; + __entry->idx = idx; + __entry->fun = fun; + ), + + TP_printk("cpu: %04u target: %3d step: %3d (%pf)", + __entry->cpu, __entry->target, __entry->idx, __entry->fun) +); + +TRACE_EVENT(cpuhp_exit, + + TP_PROTO(unsigned int cpu, + int state, + int idx, + int ret), + + TP_ARGS(cpu, state, idx, ret), + + TP_STRUCT__entry( + __field( unsigned int, cpu ) + __field( int, state ) + __field( int, idx ) + __field( int, ret ) + ), + + TP_fast_assign( + __entry->cpu = cpu; + __entry->state = state; + __entry->idx = idx; + __entry->ret = ret; + ), + + TP_printk(" cpu: %04u state: %3d step: %3d ret: %d", + __entry->cpu, __entry->state, __entry->idx, __entry->ret) +); + +#endif + +/* This part must be outside protection */ +#include