Changeset 90673 in vbox for trunk/src/VBox/VMM

Timestamp:

Aug 12, 2021 9:30:36 PM (4 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

146285

Message:

VMM/PDMCritSectRwEnterShared: Some more code refactoring. bugref:6695

File:

• trunk/src/VBox/VMM/VMMAll/PDMAllCritSectRw.cpp (modified) (4 diffs)

trunk/src/VBox/VMM/VMMAll/PDMAllCritSectRw.cpp

@@ -51 +51 @@
 *   Defined Constants And Macros                                                                                                 *
 *********************************************************************************************************************************/
+#if 0 /* unused */
 /** The number loops to spin for shared access in ring-3. */
 #define PDMCRITSECTRW_SHRD_SPIN_COUNT_R3        20
@@ -64 +65 @@
 /** The number loops to spin for exclusive access in the raw-mode context. */
 #define PDMCRITSECTRW_EXCL_SPIN_COUNT_RC        256
+#endif
 
 /** Max number of write or write/read recursions. */
@@ -267 +269 @@
 # endif
 
-    /*
-     * Wait for the direction to switch.
-     */
     for (uint32_t iLoop = 0; ; iLoop++)
     {
+        /*
+         * Wait for the direction to switch.
+         */
         int rc;
 # ifdef IN_RING3
@@ -400 +402 @@
 
     /*
-     * Get cracking...
+     * Work the state.
      */
     uint64_t u64State    = PDMCRITSECTRW_READ_STATE(&pThis->s.Core.u.s.u64State);
     uint64_t u64OldState = u64State;
-
     for (;;)
     {