1 files changed, 130 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r0drv/linux/initterm-r0drv-linux.c b/src/VBox/Runtime/r0drv/linux/initterm-r0drv-linux.c
new file mode 100644
index 00000000..9d6b4d4e
--- /dev/null
+++ b/src/VBox/Runtime/r0drv/linux/initterm-r0drv-linux.c
@@ -0,0 +1,130 @@
+/* $Id: initterm-r0drv-linux.c $ */
+/** @file
+ * IPRT - Initialization & Termination, R0 Driver, Linux.
+ */
+
+/*
+ * Copyright (C) 2006-2020 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
+ * VirtualBox OSE distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ */
+
+
+/*********************************************************************************************************************************
+*   Header Files                                                                                                                 *
+*********************************************************************************************************************************/
+#include "the-linux-kernel.h"
+#include "internal/iprt.h"
+#include <iprt/errcore.h>
+#include <iprt/assert.h>
+#include "internal/initterm.h"
+
+
+/*********************************************************************************************************************************
+*   Global Variables                                                                                                             *
+*********************************************************************************************************************************/
+/** The IPRT work queue. */
+#if RTLNX_VER_MIN(2,5,41)
+static struct workqueue_struct *g_prtR0LnxWorkQueue;
+#else
+static DECLARE_TASK_QUEUE(g_rtR0LnxWorkQueue);
+#endif
+
+
+/**
+ * Pushes an item onto the IPRT work queue.
+ *
+ * @param   pWork               The work item.
+ * @param   pfnWorker           The callback function.  It will be called back
+ *                              with @a pWork as argument.
+ */
+DECLHIDDEN(void) rtR0LnxWorkqueuePush(RTR0LNXWORKQUEUEITEM *pWork, void (*pfnWorker)(RTR0LNXWORKQUEUEITEM *))
+{
+    IPRT_LINUX_SAVE_EFL_AC();
+
+#if RTLNX_VER_MIN(2,5,41)
+# if RTLNX_VER_MIN(2,6,20)
+    INIT_WORK(pWork, pfnWorker);
+# else
+    INIT_WORK(pWork, (void (*)(void *))pfnWorker, pWork);
+# endif
+    queue_work(g_prtR0LnxWorkQueue, pWork);
+#else
+    INIT_TQUEUE(pWork, (void (*)(void *))pfnWorker, pWork);
+    queue_task(pWork, &g_rtR0LnxWorkQueue);
+#endif
+
+    IPRT_LINUX_RESTORE_EFL_AC();
+}
+
+
+/**
+ * Flushes all items in the IPRT work queue.
+ *
+ * @remarks This is mostly for 2.4.x compatability.  Must not be called from
+ *          atomic contexts or with unncessary locks held.
+ */
+DECLHIDDEN(void) rtR0LnxWorkqueueFlush(void)
+{
+    IPRT_LINUX_SAVE_EFL_AC();
+
+#if RTLNX_VER_MIN(2,5,41)
+    flush_workqueue(g_prtR0LnxWorkQueue);
+#else
+    run_task_queue(&g_rtR0LnxWorkQueue);
+#endif
+
+    IPRT_LINUX_RESTORE_EFL_AC();
+}
+
+
+DECLHIDDEN(int) rtR0InitNative(void)
+{
+    int rc = VINF_SUCCESS;
+    IPRT_LINUX_SAVE_EFL_AC();
+
+#if RTLNX_VER_MIN(2,5,41)
+ #if RTLNX_VER_MIN(2,6,13)
+    g_prtR0LnxWorkQueue = create_workqueue("iprt-VBoxWQueue");
+ #else
+    g_prtR0LnxWorkQueue = create_workqueue("iprt-VBoxQ");
+ #endif
+    if (!g_prtR0LnxWorkQueue)
+        rc = VERR_NO_MEMORY;
+#endif
+
+    IPRT_LINUX_RESTORE_EFL_AC();
+    return rc;
+}
+
+
+DECLHIDDEN(void) rtR0TermNative(void)
+{
+    IPRT_LINUX_SAVE_EFL_AC();
+
+    rtR0LnxWorkqueueFlush();
+#if RTLNX_VER_MIN(2,5,41)
+    destroy_workqueue(g_prtR0LnxWorkQueue);
+    g_prtR0LnxWorkQueue = NULL;
+#endif
+
+    rtR0MemExecCleanup();
+
+    IPRT_LINUX_RESTORE_EFL_AC();
+}
+