Changeset 56955 in vbox for trunk/src/VBox/Runtime/r0drv/linux/threadctxhooks-r0drv-linux.c

Timestamp:

Jul 16, 2015 4:16:16 PM (9 years ago)

Author:

vboxsync

Message:

Runtime/r0drv/threadctxhooks: Call preempt_notifier_inc/dec() for linux kernels 4.2.0+.

File:

• trunk/src/VBox/Runtime/r0drv/linux/threadctxhooks-r0drv-linux.c (modified) (2 diffs)

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

@@ -191 +191 @@
     pThis->PreemptOps.sched_in  = rtThreadCtxHooksLnxSchedIn;
 
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
+    preempt_notifier_inc();
+#endif
+
     *phCtxHook = pThis;
     return VINF_SUCCESS;
@@ -220 +224 @@
         Assert(!pThis->fEnabled); /* paranoia */
     }
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
+    preempt_notifier_dec();
+#endif
 
     ASMAtomicWriteU32(&pThis->u32Magic, ~RTTHREADCTXHOOKINT_MAGIC);