Changeset 409 for trunk/kernel/libk/spinlock.h

Timestamp:

Dec 20, 2017, 4:51:09 PM (6 years ago)

Author:

alain

Message:

Fix bugs in exec

File:

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

trunk/kernel/libk/spinlock.h

@@ -55 +55 @@
 /*******************************************************************************************
  * This structure defines a local spinlock.
+ * The "owner" and "list" are optionnal fields used for debug. 
+ * It register the list of all spinlocks taken by a given thread.
  ******************************************************************************************/
 
@@ -60 +62 @@
 {
         uint32_t            taken;             /*! state : free if zero / taken if non zero  */
+
+#if CONFIG_LOCKS_DEBUG
         struct thread_s   * owner;             /*! pointer on curent owner thread            */
-    list_entry_t        list;              /*! list of all locks taken by owner          */
+    list_entry_t        list;              /*! member of list of locks taken by owner    */
+#endif
+
 }
 spinlock_t;
@@ -96 +102 @@
 /*******************************************************************************************
  * This blocking function locks a local spinlock.
- * If the lock is already taken, the calling thread deschedules and retries when
- * it is rescheduled, until success.
+ * If the lock is already taken, the calling thread deschedules without blocking,
+ * and retries when it is rescheduled, until success.
  * It increments the calling thread local_locks count when the lock has been taken.
  *******************************************************************************************