1 files changed, 4 insertions, 0 deletions

diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt
index 0d0492028082..b2aa722e5ea2 100644
--- a/Documentation/filesystems/vfs.txt
+++ b/Documentation/filesystems/vfs.txt
@@ -364,6 +364,7 @@ struct inode_operations {
         ssize_t (*listxattr) (struct dentry *, char *, size_t);
         int (*removexattr) (struct dentry *, const char *);
         void (*truncate_range)(struct inode *, loff_t, loff_t);
+        void (*update_time)(struct inode *, struct timespec *, int);
 };
 
 Again, all methods are called without any locks being held, unless
@@ -475,6 +476,9 @@ otherwise noted.
   truncate_range: a method provided by the underlying filesystem to truncate a
         range of blocks , i.e. punch a hole somewhere in a file.
 
+  update_time: called by the VFS to update a specific time or the i_version of
+        an inode.  If this is not defined the VFS will update the inode itself
+        and call mark_inode_dirty_sync.
 
 The Address Space Object
 ========================