workqueue: merge feature parameters into flags

Currently, __create_workqueue_key() takes @singlethread and
@freezeable paramters and store them separately in workqueue_struct.
Merge them into a single flags parameter and field and use
WQ_FREEZEABLE and WQ_SINGLE_THREAD.

Signed-off-by: Tejun Heo <tj@kernel.org>

1 files changed, 7 insertions, 10 deletions

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index c56146a..68e4dd8 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -67,11 +67,10 @@ struct cpu_workqueue_struct {
  * per-CPU workqueues:
  */
 struct workqueue_struct {
+	unsigned int		flags;		/* I: WQ_* flags */
 	struct cpu_workqueue_struct *cpu_wq;	/* I: cwq's */
 	struct list_head	list;		/* W: list of all workqueues */
 	const char		*name;		/* I: workqueue name */
-	int singlethread;
-	int freezeable;		/* Freeze threads during suspend */
 #ifdef CONFIG_LOCKDEP
 	struct lockdep_map	lockdep_map;
 #endif
@@ -203,9 +202,9 @@ static const struct cpumask *cpu_singlethread_map __read_mostly;
 static cpumask_var_t cpu_populated_map __read_mostly;
 
 /* If it's single threaded, it isn't in the list of workqueues. */
-static inline int is_wq_single_threaded(struct workqueue_struct *wq)
+static inline bool is_wq_single_threaded(struct workqueue_struct *wq)
 {
-	return wq->singlethread;
+	return wq->flags & WQ_SINGLE_THREAD;
 }
 
 static const struct cpumask *wq_cpu_map(struct workqueue_struct *wq)
@@ -463,7 +462,7 @@ static int worker_thread(void *__cwq)
 	struct cpu_workqueue_struct *cwq = __cwq;
 	DEFINE_WAIT(wait);
 
-	if (cwq->wq->freezeable)
+	if (cwq->wq->flags & WQ_FREEZEABLE)
 		set_freezable();
 
 	for (;;) {
@@ -1013,8 +1012,7 @@ static void start_workqueue_thread(struct cpu_workqueue_struct *cwq, int cpu)
 }
 
 struct workqueue_struct *__create_workqueue_key(const char *name,
-						int singlethread,
-						int freezeable,
+						unsigned int flags,
 						struct lock_class_key *key,
 						const char *lock_name)
 {
@@ -1030,13 +1028,12 @@ struct workqueue_struct *__create_workqueue_key(const char *name,
 	if (!wq->cpu_wq)
 		goto err;
 
+	wq->flags = flags;
 	wq->name = name;
 	lockdep_init_map(&wq->lockdep_map, lock_name, key, 0);
-	wq->singlethread = singlethread;
-	wq->freezeable = freezeable;
 	INIT_LIST_HEAD(&wq->list);
 
-	if (singlethread) {
+	if (flags & WQ_SINGLE_THREAD) {
 		cwq = init_cpu_workqueue(wq, singlethread_cpu);
 		err = create_workqueue_thread(cwq, singlethread_cpu);
 		start_workqueue_thread(cwq, -1);