[PATCH] add missing mremap_userfaultfd_fail() stub

[Lorenzo Stoakes]

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