summaryrefslogtreecommitdiff
path: root/include
diff options
context:
space:
mode:
Diffstat (limited to 'include')
-rw-r--r--include/linux/mm.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index cf3d0d673f6b..09ea26056e2f 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1962,8 +1962,12 @@ extern unsigned long move_page_tables(struct vm_area_struct *vma,
* for now all the callers are only use one of the flags at the same
* time.
*/
-/* Whether we should allow dirty bit accounting */
-#define MM_CP_DIRTY_ACCT (1UL << 0)
+/*
+ * Whether we should manually check if we can map individual PTEs writable,
+ * because something (e.g., COW, uffd-wp) blocks that from happening for all
+ * PTEs automatically in a writable mapping.
+ */
+#define MM_CP_TRY_CHANGE_WRITABLE (1UL << 0)
/* Whether this protection change is for NUMA hints */
#define MM_CP_PROT_NUMA (1UL << 1)
/* Whether this change is for write protecting */