1 files changed, 4 insertions, 0 deletions

diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting
index 0f3a1390bf00..b6b55a9cffee 100644
--- a/Documentation/filesystems/porting
+++ b/Documentation/filesystems/porting
@@ -463,3 +463,7 @@ in your dentry operations instead.
         of the in-tree instances did).  inode_hash_lock is still held,
         of course, so they are still serialized wrt removal from inode hash,
         as well as wrt set() callback of iget5_locked().
+--
+[mandatory]
+        d_materialise_unique() is gone; d_splice_alias() does everything you
+        need now.  Remember that they have opposite orders of arguments ;-/