From 64166699752006f1a23a9cf7c96ae36654ccfc2c Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 29 Jun 2010 10:07:11 +0200 Subject: workqueue: temporarily remove workqueue tracing Strip tracing code from workqueue and remove workqueue tracing. This is temporary measure till concurrency managed workqueue is complete. Signed-off-by: Tejun Heo Cc: Frederic Weisbecker --- kernel/trace/Kconfig | 11 ----------- kernel/workqueue.c | 14 +++----------- 2 files changed, 3 insertions(+), 22 deletions(-) (limited to 'kernel') diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index 8b1797c..a0d95c1 100644 --- a/kernel/trace/Kconfig +++ b/kernel/trace/Kconfig @@ -391,17 +391,6 @@ config KMEMTRACE If unsure, say N. -config WORKQUEUE_TRACER - bool "Trace workqueues" - select GENERIC_TRACER - help - The workqueue tracer provides some statistical information - about each cpu workqueue thread such as the number of the - works inserted and executed since their creation. It can help - to evaluate the amount of work each of them has to perform. - For example it can help a developer to decide whether he should - choose a per-cpu workqueue instead of a singlethreaded one. - config BLK_DEV_IO_TRACE bool "Support for tracing block IO actions" depends on SYSFS diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 8e3082b..f7ab703 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -33,8 +33,6 @@ #include #include #include -#define CREATE_TRACE_POINTS -#include /* * Structure fields follow one of the following exclusion rules. @@ -243,10 +241,10 @@ static inline void clear_wq_data(struct work_struct *work) atomic_long_set(&work->data, work_static(work)); } -static inline -struct cpu_workqueue_struct *get_wq_data(struct work_struct *work) +static inline struct cpu_workqueue_struct *get_wq_data(struct work_struct *work) { - return (void *) (atomic_long_read(&work->data) & WORK_STRUCT_WQ_DATA_MASK); + return (void *)(atomic_long_read(&work->data) & + WORK_STRUCT_WQ_DATA_MASK); } /** @@ -265,8 +263,6 @@ static void insert_work(struct cpu_workqueue_struct *cwq, struct work_struct *work, struct list_head *head, unsigned int extra_flags) { - trace_workqueue_insertion(cwq->thread, work); - /* we own @work, set data and link */ set_wq_data(work, cwq, extra_flags); @@ -431,7 +427,6 @@ static void process_one_work(struct cpu_workqueue_struct *cwq, struct lockdep_map lockdep_map = work->lockdep_map; #endif /* claim and process */ - trace_workqueue_execution(cwq->thread, work); debug_work_deactivate(work); cwq->current_work = work; list_del_init(&work->entry); @@ -1017,8 +1012,6 @@ static int create_workqueue_thread(struct cpu_workqueue_struct *cwq, int cpu) return PTR_ERR(p); cwq->thread = p; - trace_workqueue_creation(cwq->thread, cpu); - return 0; } @@ -1123,7 +1116,6 @@ static void cleanup_workqueue_thread(struct cpu_workqueue_struct *cwq) * checks list_empty(), and a "normal" queue_work() can't use * a dead CPU. */ - trace_workqueue_destruction(cwq->thread); kthread_stop(cwq->thread); cwq->thread = NULL; } -- cgit v1.1