This covers the !CONFIG_USERFAULTFD case. Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@xxxxxxxxxx> --- include/linux/userfaultfd_k.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/linux/userfaultfd_k.h b/include/linux/userfaultfd_k.h index 6680a4de40b3..c0e716aec26a 100644 --- a/include/linux/userfaultfd_k.h +++ b/include/linux/userfaultfd_k.h @@ -372,6 +372,10 @@ static inline void mremap_userfaultfd_complete(struct vm_userfaultfd_ctx *ctx, { } +static inline void mremap_userfaultfd_fail(struct vm_userfaultfd_ctx *ctx) +{ +} + static inline bool userfaultfd_remove(struct vm_area_struct *vma, unsigned long start, unsigned long end) -- 2.50.0