Changeset 12029 in vbox for trunk

Timestamp:

Sep 3, 2008 12:15:34 PM (16 years ago)

Author:

vboxsync

Message:

mpnotifications-r0drv-linux: added explanatory comments.

File:

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

-              r12015
+              r12029
     NOREF(pNotifierBlock);
+    /*
+     * Note that redhat/CentOS ported _some_ of the FROZEN macros
+     * back to their 2.6.18-92.1.10.el5 kernel but actually don't
+     * use them. Thus we have to test for both CPU_TASKS_FROZEN and
+     * the individual event variants.
+     */
     /* ASSUMES iCpu == RTCPUID */
     switch (ulNativeEvent)
+    {
+        /*
+         * Pick up online events or failures to go offline.
+         * Ignore failure events for CPUs we didn't see go offline.
+         */
 #ifdef CPU_DOWN_FAILED
         case CPU_DOWN_FAILED:
-        /* r=frank: redhat/CentOS ported _some_ of these constants back to their
-         *          2.6.18-92.1.10.el5 kernel but actually don't use them. */
 # if defined(CPU_TASKS_FROZEN) && defined(CPU_DOWN_FAILED_FROZEN)
         case CPU_DOWN_FAILED_FROZEN:
 …
             break;
+        /*
+         * Pick the earlies possible offline event.
+         * The only important thing here is that we get the event and that
+         * it's exactly one.
+         */
 #ifdef CPU_DOWN_PREPARE
         case CPU_DOWN_PREPARE:

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