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-rw-r--r--Documentation/filesystems/porting5
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting
index 321d74b73937..cf43bc4dbf31 100644
--- a/Documentation/filesystems/porting
+++ b/Documentation/filesystems/porting
@@ -623,6 +623,11 @@ in your dentry operations instead.
On success you get a new struct file sharing the mount/dentry with the
original, on failure - ERR_PTR().
--
+[mandatory]
+ ->clone_file_range() and ->dedupe_file_range have been replaced with
+ ->remap_file_range(). See Documentation/filesystems/vfs.txt for more
+ information.
+--
[recommended]
->lookup() instances doing an equivalent of
if (IS_ERR(inode))