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-rw-r--r--Documentation/filesystems/dax.txt6
-rw-r--r--Documentation/filesystems/ext4/verity.rst3
2 files changed, 6 insertions, 3 deletions
diff --git a/Documentation/filesystems/dax.txt b/Documentation/filesystems/dax.txt
index 8e2670781c9b..8fdb78f3c6c9 100644
--- a/Documentation/filesystems/dax.txt
+++ b/Documentation/filesystems/dax.txt
@@ -25,7 +25,7 @@ size when creating the filesystem.
Currently 3 filesystems support DAX: ext2, ext4 and xfs. Enabling DAX on them
is different.
-Enabling DAX on ext4 and ext2
+Enabling DAX on ext2
-----------------------------
When mounting the filesystem, use the "-o dax" option on the command line or
@@ -33,8 +33,8 @@ add 'dax' to the options in /etc/fstab. This works to enable DAX on all files
within the filesystem. It is equivalent to the '-o dax=always' behavior below.
-Enabling DAX on xfs
--------------------
+Enabling DAX on xfs and ext4
+----------------------------
Summary
-------
diff --git a/Documentation/filesystems/ext4/verity.rst b/Documentation/filesystems/ext4/verity.rst
index 3e4c0ee0e068..e99ff3fd09f7 100644
--- a/Documentation/filesystems/ext4/verity.rst
+++ b/Documentation/filesystems/ext4/verity.rst
@@ -39,3 +39,6 @@ is encrypted as well as the data itself.
Verity files cannot have blocks allocated past the end of the verity
metadata.
+
+Verity and DAX are not compatible and attempts to set both of these flags
+on a file will fail.