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| author | Zhaolei <zhaolei@cn.fujitsu.com> | 2009-04-20 14:59:36 +0800 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2009-06-02 01:13:46 +0200 |
| commit | b8867164f05791a6b5363bd51c1274e03600886e (patch) | |
| tree | 781be4716c204703143db86606372b64db6dc835 /kernel/trace | |
| parent | 1fdfca9c577aac96a559c1ea68f5c9156f17d636 (diff) | |
| download | lwn-b8867164f05791a6b5363bd51c1274e03600886e.tar.gz lwn-b8867164f05791a6b5363bd51c1274e03600886e.zip | |
trace_workqueue: remove cpu_workqueue_stats->first_entry
cpu_workqueue_stats->first_entry is useless because we can retrieve the
header of a cpu workqueue using:
if (&cpu_workqueue_stats->list == workqueue_cpu_stat(cpu)->list.next)
[ Impact: cleanup ]
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: Frederic Weisbecker <fweisbec@gmail.com>
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/trace_workqueue.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/kernel/trace/trace_workqueue.c b/kernel/trace/trace_workqueue.c index 128b64b93f14..890974aed64d 100644 --- a/kernel/trace/trace_workqueue.c +++ b/kernel/trace/trace_workqueue.c @@ -16,8 +16,6 @@ /* A cpu workqueue thread */ struct cpu_workqueue_stats { struct list_head list; -/* Useful to know if we print the cpu headers */ - bool first_entry; int cpu; pid_t pid; /* Can be inserted from interrupt or user context, need to be atomic */ @@ -103,8 +101,6 @@ static void probe_workqueue_creation(struct task_struct *wq_thread, int cpu) cws->pid = wq_thread->pid; spin_lock_irqsave(&workqueue_cpu_stat(cpu)->lock, flags); - if (list_empty(&workqueue_cpu_stat(cpu)->list)) - cws->first_entry = true; list_add_tail(&cws->list, &workqueue_cpu_stat(cpu)->list); spin_unlock_irqrestore(&workqueue_cpu_stat(cpu)->lock, flags); } |