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authorZhaolei <zhaolei@cn.fujitsu.com>2009-04-17 03:15:51 -0400
committerFrederic Weisbecker <fweisbec@gmail.com>2009-06-01 19:10:40 -0400
commitfb39125fd79a25c5002f3b45cf4c80e3fa6b961b (patch)
tree96a9d274896f94306bc4d4972eca2153934f4814 /kernel/workqueue.c
parentf2aebaee653a35b01c3665de2cbb1e31456b8ea8 (diff)
ftrace, workqueuetrace: make workqueue tracepoints use TRACE_EVENT macro
v3: zhaolei@cn.fujitsu.com: Change TRACE_EVENT definition to new format introduced by Steven Rostedt: consolidate trace and trace_event headers v2: kosaki@jp.fujitsu.com: print the function names instead of addr, and zap the work addr v1: zhaolei@cn.fujitsu.com: Make workqueue tracepoints use TRACE_EVENT macro TRACE_EVENT is a more generic way to define tracepoints. Doing so adds these new capabilities to the tracepoints: - zero-copy and per-cpu splice() tracing - binary tracing without printf overhead - structured logging records exposed under /debug/tracing/events - trace events embedded in function tracer output and other plugins - user-defined, per tracepoint filter expressions Then, this patch converts DEFINE_TRACE to TRACE_EVENT in workqueue related tracepoints. [ Impact: expand workqueue tracer to events tracing ] Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Tom Zanussi <tzanussi@gmail.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Diffstat (limited to 'kernel/workqueue.c')
-rw-r--r--kernel/workqueue.c11
1 files changed, 2 insertions, 9 deletions
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index f71fb2a08950..0668795d8818 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -33,7 +33,8 @@
33#include <linux/kallsyms.h> 33#include <linux/kallsyms.h>
34#include <linux/debug_locks.h> 34#include <linux/debug_locks.h>
35#include <linux/lockdep.h> 35#include <linux/lockdep.h>
36#include <trace/workqueue.h> 36#define CREATE_TRACE_POINTS
37#include <trace/events/workqueue.h>
37 38
38/* 39/*
39 * The per-CPU workqueue (if single thread, we always use the first 40 * The per-CPU workqueue (if single thread, we always use the first
@@ -124,8 +125,6 @@ struct cpu_workqueue_struct *get_wq_data(struct work_struct *work)
124 return (void *) (atomic_long_read(&work->data) & WORK_STRUCT_WQ_DATA_MASK); 125 return (void *) (atomic_long_read(&work->data) & WORK_STRUCT_WQ_DATA_MASK);
125} 126}
126 127
127DEFINE_TRACE(workqueue_insertion);
128
129static void insert_work(struct cpu_workqueue_struct *cwq, 128static void insert_work(struct cpu_workqueue_struct *cwq,
130 struct work_struct *work, struct list_head *head) 129 struct work_struct *work, struct list_head *head)
131{ 130{
@@ -262,8 +261,6 @@ int queue_delayed_work_on(int cpu, struct workqueue_struct *wq,
262} 261}
263EXPORT_SYMBOL_GPL(queue_delayed_work_on); 262EXPORT_SYMBOL_GPL(queue_delayed_work_on);
264 263
265DEFINE_TRACE(workqueue_execution);
266
267static void run_workqueue(struct cpu_workqueue_struct *cwq) 264static void run_workqueue(struct cpu_workqueue_struct *cwq)
268{ 265{
269 spin_lock_irq(&cwq->lock); 266 spin_lock_irq(&cwq->lock);
@@ -753,8 +750,6 @@ init_cpu_workqueue(struct workqueue_struct *wq, int cpu)
753 return cwq; 750 return cwq;
754} 751}
755 752
756DEFINE_TRACE(workqueue_creation);
757
758static int create_workqueue_thread(struct cpu_workqueue_struct *cwq, int cpu) 753static int create_workqueue_thread(struct cpu_workqueue_struct *cwq, int cpu)
759{ 754{
760 struct sched_param param = { .sched_priority = MAX_RT_PRIO-1 }; 755 struct sched_param param = { .sched_priority = MAX_RT_PRIO-1 };
@@ -860,8 +855,6 @@ struct workqueue_struct *__create_workqueue_key(const char *name,
860} 855}
861EXPORT_SYMBOL_GPL(__create_workqueue_key); 856EXPORT_SYMBOL_GPL(__create_workqueue_key);
862 857
863DEFINE_TRACE(workqueue_destruction);
864
865static void cleanup_workqueue_thread(struct cpu_workqueue_struct *cwq) 858static void cleanup_workqueue_thread(struct cpu_workqueue_struct *cwq)
866{ 859{
867 /* 860 /*