ovl: update doc
The quirk for file locks and leases no longer applies.
Add missing info about renaming directory residing on lower layer.
Signed-off-by: Miklos Szeredi <[email protected]>
diff --git a/Documentation/filesystems/overlayfs.txt b/Documentation/filesystems/overlayfs.txt
index bcbf971..7aeb8e8 100644
--- a/Documentation/filesystems/overlayfs.txt
+++ b/Documentation/filesystems/overlayfs.txt
@@ -185,13 +185,13 @@
Any open files referring to this inode will access the old data.
-Any file locks (and leases) obtained before copy_up will not apply
-to the copied up file.
-
If a file with multiple hard links is copied up, then this will
"break" the link. Changes will not be propagated to other names
referring to the same inode.
+Directory trees are not copied up. If rename(2) is performed on a directory
+which is on the lower layer or is merged, then -EXDEV will be returned.
+
Changes to underlying filesystems
---------------------------------
