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-rw-r--r--mm/util.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/mm/util.c b/mm/util.c
index 3cb2164f4099..b8f538863b5a 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -11,6 +11,7 @@
#include <linux/mman.h>
#include <linux/hugetlb.h>
#include <linux/vmalloc.h>
+#include <linux/userfaultfd_k.h>
#include <asm/sections.h>
#include <linux/uaccess.h>
@@ -297,14 +298,16 @@ unsigned long vm_mmap_pgoff(struct file *file, unsigned long addr,
unsigned long ret;
struct mm_struct *mm = current->mm;
unsigned long populate;
+ LIST_HEAD(uf);
ret = security_mmap_file(file, prot, flag);
if (!ret) {
if (down_write_killable(&mm->mmap_sem))
return -EINTR;
ret = do_mmap_pgoff(file, addr, len, prot, flag, pgoff,
- &populate);
+ &populate, &uf);
up_write(&mm->mmap_sem);
+ userfaultfd_unmap_complete(mm, &uf);
if (populate)
mm_populate(ret, populate);
}