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authorZhaolei <zhaolei@cn.fujitsu.com>2009-04-20 14:58:26 +0800
committerFrederic Weisbecker <fweisbec@gmail.com>2009-06-02 01:13:05 +0200
commit1fdfca9c577aac96a559c1ea68f5c9156f17d636 (patch)
treefbbeeba504037440e42cce056781d56ecebfc4b1
parentfb39125fd79a25c5002f3b45cf4c80e3fa6b961b (diff)
downloadop-kernel-dev-1fdfca9c577aac96a559c1ea68f5c9156f17d636.zip
op-kernel-dev-1fdfca9c577aac96a559c1ea68f5c9156f17d636.tar.gz
trace_workqueue: use list_for_each_entry() instead of list_for_each_entry_safe()
No need to use list_for_each_entry_safe() in iteration without deleting any node, we can use list_for_each_entry() instead. [ 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>
-rw-r--r--kernel/trace/trace_workqueue.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/kernel/trace/trace_workqueue.c b/kernel/trace/trace_workqueue.c
index cfe56d3..128b64b 100644
--- a/kernel/trace/trace_workqueue.c
+++ b/kernel/trace/trace_workqueue.c
@@ -47,12 +47,11 @@ probe_workqueue_insertion(struct task_struct *wq_thread,
struct work_struct *work)
{
int cpu = cpumask_first(&wq_thread->cpus_allowed);
- struct cpu_workqueue_stats *node, *next;
+ struct cpu_workqueue_stats *node;
unsigned long flags;
spin_lock_irqsave(&workqueue_cpu_stat(cpu)->lock, flags);
- list_for_each_entry_safe(node, next, &workqueue_cpu_stat(cpu)->list,
- list) {
+ list_for_each_entry(node, &workqueue_cpu_stat(cpu)->list, list) {
if (node->pid == wq_thread->pid) {
atomic_inc(&node->inserted);
goto found;
@@ -69,12 +68,11 @@ probe_workqueue_execution(struct task_struct *wq_thread,
struct work_struct *work)
{
int cpu = cpumask_first(&wq_thread->cpus_allowed);
- struct cpu_workqueue_stats *node, *next;
+ struct cpu_workqueue_stats *node;
unsigned long flags;
spin_lock_irqsave(&workqueue_cpu_stat(cpu)->lock, flags);
- list_for_each_entry_safe(node, next, &workqueue_cpu_stat(cpu)->list,
- list) {
+ list_for_each_entry(node, &workqueue_cpu_stat(cpu)->list, list) {
if (node->pid == wq_thread->pid) {
node->executed++;
goto found;
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