sched/wqueue: Replace spinlock/sched_lock with spin_lock_irqsave_nopreempt

Replace the spinlock/sched_lock pair in the sched wqueue module with
    spin_lock_irqsave_nopreempt() to improve code clarity and consistency.

Signed-off-by: Chengdong Wang wangchengdong@lixiang.com

sched/wqueue/kwork_notifier.c

@@ -360,8 +360,7 @@ void work_notifier_signal(enum work_evtype_e evtype,
    * the notifications have been sent.
    */
 
-  flags = spin_lock_irqsave(&g_notifier_lock);
-  sched_lock();
+  flags = spin_lock_irqsave_nopreempt(&g_notifier_lock);
 
   /* Process the notification at the head of the pending list until the
    * pending list is empty
@@ -404,8 +403,7 @@ void work_notifier_signal(enum work_evtype_e evtype,
         }
     }
 
-  spin_unlock_irqrestore(&g_notifier_lock, flags);
-  sched_unlock();
+  spin_unlock_irqrestore_nopreempt(&g_notifier_lock, flags);
 }
 
 #endif /* CONFIG_WQUEUE_NOTIFIER */

sched/wqueue/kwork_thread.c

@@ -211,8 +211,7 @@ static int work_thread(int argc, FAR char *argv[])
        * so ourselves, and (2) there will be no changes to the work queue
        */
 
-      flags = spin_lock_irqsave(&wqueue->lock);
-      sched_lock();
+       flags = spin_lock_irqsave_nopreempt(&wqueue->lock);
 
       /* If the wqueue timer is expired and non-active, it indicates that
        * there might be expired work in the pending queue.
@@ -247,16 +246,14 @@ static int work_thread(int argc, FAR char *argv[])
 
           kworker->work = work;
 
-          spin_unlock_irqrestore(&wqueue->lock, flags);
-          sched_unlock();
+          spin_unlock_irqrestore_nopreempt(&wqueue->lock, flags);
 
           /* Do the work.  Re-enable interrupts while the work is being
            * performed... we don't have any idea how long this will take!
            */
 
           CALL_WORKER(worker, arg);
-          flags = spin_lock_irqsave(&wqueue->lock);
-          sched_lock();
+          flags = spin_lock_irqsave_nopreempt(&wqueue->lock);
 
           /* Mark the thread un-busy */
 
@@ -271,8 +268,7 @@ static int work_thread(int argc, FAR char *argv[])
             }
         }
 
-      spin_unlock_irqrestore(&wqueue->lock, flags);
-      sched_unlock();
+      spin_unlock_irqrestore_nopreempt(&wqueue->lock, flags);
 
       /* Wait for the semaphore to be posted by the wqueue timer. */