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--- a/src/vboxhost/vboxdrv/r0drv/linux/the-linux-kernel.h
+++ b/src/vboxhost/vboxdrv/r0drv/linux/the-linux-kernel.h
@@ -137,7 +137,10 @@
#include <linux/interrupt.h>
#include <linux/completion.h>
#include <linux/compiler.h>
-#ifndef HAVE_UNLOCKED_IOCTL /* linux/fs.h defines this */
+#if RTLNX_VER_MIN(5, 9, 0)
+#define HAVE_UNLOCKED_IOCTL 1 /* defined in linux/fs.h for kernels before 5.9 */
+#endif
+#ifndef HAVE_UNLOCKED_IOCTL
# include <linux/smp_lock.h>
#endif
/* For the shared folders module */
--- a/src/vboxhost/vboxnetadp/r0drv/linux/the-linux-kernel.h
+++ b/src/vboxhost/vboxnetadp/r0drv/linux/the-linux-kernel.h
@@ -137,7 +137,10 @@
#include <linux/interrupt.h>
#include <linux/completion.h>
#include <linux/compiler.h>
-#ifndef HAVE_UNLOCKED_IOCTL /* linux/fs.h defines this */
+#if RTLNX_VER_MIN(5, 9, 0)
+#define HAVE_UNLOCKED_IOCTL 1 /* defined in linux/fs.h for kernels before 5.9 */
+#endif
+#ifndef HAVE_UNLOCKED_IOCTL
# include <linux/smp_lock.h>
#endif
/* For the shared folders module */
--- a/src/vboxhost/vboxnetflt/r0drv/linux/the-linux-kernel.h
+++ b/src/vboxhost/vboxnetflt/r0drv/linux/the-linux-kernel.h
@@ -137,7 +137,10 @@
#include <linux/interrupt.h>
#include <linux/completion.h>
#include <linux/compiler.h>
-#ifndef HAVE_UNLOCKED_IOCTL /* linux/fs.h defines this */
+#if RTLNX_VER_MIN(5, 9, 0)
+#define HAVE_UNLOCKED_IOCTL 1 /* defined in linux/fs.h for kernels before 5.9 */
+#endif
+#ifndef HAVE_UNLOCKED_IOCTL
# include <linux/smp_lock.h>
#endif
/* For the shared folders module */
--- a/src/vboxhost/vboxdrv/r0drv/linux/memobj-r0drv-linux.c
+++ b/src/vboxhost/vboxdrv/r0drv/linux/memobj-r0drv-linux.c
@@ -1181,7 +1181,9 @@ DECLHIDDEN(int) rtR0MemObjNativeLockUser
*/
else
rc = get_user_pages_remote(
+#if RTLNX_VER_MAX(5, 9, 0)
pTask, /* Task for fault accounting. */
+#endif
pTask->mm, /* Whose pages. */
R3Ptr, /* Where from. */
cPages, /* How many pages. */
--- a/src/vboxhost/vboxdrv/r0drv/linux/thread2-r0drv-linux.c
+++ b/src/vboxhost/vboxdrv/r0drv/linux/thread2-r0drv-linux.c
@@ -92,8 +92,12 @@ DECLHIDDEN(int) rtThreadNativeSetPriorit
return VERR_INVALID_PARAMETER;
}
+#if RTLNX_VER_MAX(5, 9, 0)
sched_setscheduler(current, iSchedClass, &Param);
#else
+ sched_set_fifo_low(current);
+#endif
+#else
RT_NOREF_PV(enmType);
#endif
RT_NOREF_PV(pThread);
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