Changeset 337 for trunk/kernel/libk/spinlock.c

Timestamp:

Aug 7, 2017, 12:50:17 PM (7 years ago)

Author:

alain

Message:

Introduce the delayed context switch if current thread has a lock.

File:

• trunk/kernel/libk/spinlock.c (modified) (3 diffs)

trunk/kernel/libk/spinlock.c

@@ -84 +84 @@
     list_unlink( &lock->list );
 
-    hal_restore_irq( irq_state );
+    // deschedule if pending request
+    thread_check_sched();
+ 
+    // restore IRQs
+        hal_restore_irq( irq_state );
 }
 
@@ -120 +124 @@
     list_add_first( &this->locks_root , &lock->list );
 
-    // enable interrupts
+    // restore IRQs
     hal_restore_irq( mode );
 }
@@ -160 +164 @@
     this->local_locks--;
     list_unlink( &lock->list );
+
+    // deschedule if pending request
+    thread_check_sched();
 }