*** ./vboxdrv/r0drv/linux/memobj-r0drv-linux.c.orig	2019-02-24 09:49:10.781029987 +0100
--- ./vboxdrv/r0drv/linux/memobj-r0drv-linux.c	2019-02-24 09:55:47.779289201 +0100
***************
*** 1113,1119 ****
                                  pTask->mm,              /* Whose pages. */
                                  R3Ptr,                  /* Where from. */
                                  cPages,                 /* How many pages. */
! # if GET_USER_PAGES_API >= KERNEL_VERSION(4, 9, 0)
                                  fWrite ? FOLL_WRITE |   /* Write to memory. */
                                           FOLL_FORCE     /* force write access. */
                                         : 0,             /* Write to memory. */
--- 1113,1119 ----
                                  pTask->mm,              /* Whose pages. */
                                  R3Ptr,                  /* Where from. */
                                  cPages,                 /* How many pages. */
! # if GET_USER_PAGES_API >= KERNEL_VERSION(4, 4, 168)
                                  fWrite ? FOLL_WRITE |   /* Write to memory. */
                                           FOLL_FORCE     /* force write access. */
                                         : 0,             /* Write to memory. */