vbox的更動 44451 路徑 trunk/src/VBox/Runtime/r0drv

時間撮記:

2013-1-30 上午07:58:43 (12 年 以前)

作者:

vboxsync

訊息:

BUGZ:6570 Add comment.

檔案:

• trunk/src/VBox/Runtime/r0drv/linux/spinlock-r0drv-linux.c (修改) (1 筆差異)

trunk/src/VBox/Runtime/r0drv/linux/spinlock-r0drv-linux.c

@@ -95 +95 @@
 #endif
 
+    /*
+       PLEASE DO NOT MODIFY THE NEXT FOUR LINES OF CODE!
+
+       We use this approach in order to split RTSPINLOCK_FLAGS_INTERRUPT_UNSAFE and
+       RTSPINLOCK_FLAGS_INTERRUPT_SAFE spinlocks into separated locking classes when
+       CONFIG_PROVE_LOCKING kernel option is enabled. Using single spin_lock_init()
+       call will trigger kernel warning regarding to incorrect spinlock usage.
+     */
     if (fFlags == RTSPINLOCK_FLAGS_INTERRUPT_UNSAFE)
         spin_lock_init(&pThis->Spinlock);