@@ -65,6 +65,11 @@ static inline bool userfaultfd_missing(struct vm_area_struct *vma)
return vma->vm_flags & VM_UFFD_MISSING;
}
+static inline bool userfaultfd_wp(struct vm_area_struct *vma)
+{
+ return vma->vm_flags & VM_UFFD_WP;
+}
+
static inline bool userfaultfd_armed(struct vm_area_struct *vma)
{
return vma->vm_flags & (VM_UFFD_MISSING | VM_UFFD_WP);
@@ -92,6 +97,11 @@ static inline bool userfaultfd_missing(struct vm_area_struct *vma)
return false;
}
+static inline bool userfaultfd_wp(struct vm_area_struct *vma)
+{
+ return false;
+}
+
static inline bool userfaultfd_armed(struct vm_area_struct *vma)
{
return false;
These helpers will be used to know if to call handle_userfault() during wrprotect faults in order to deliver the wrprotect faults to userland. Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> --- include/linux/userfaultfd_k.h | 10 ++++++++++ 1 file changed, 10 insertions(+) -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html