vfs: add fileattr ops

[linux-2.6-microblaze.git] / Documentation / filesystems / locking.rst

diff --git a/Documentation/filesystems/locking.rst b/Documentation/filesystems/locking.rst
index b7dcc86..729ce49 100644 (file)
--- a/Documentation/filesystems/locking.rst
+++ b/Documentation/filesystems/locking.rst
@@ -80,13 +80,16 @@ prototypes::
                                struct file *, unsigned open_flag,
                                umode_t create_mode);
        int (*tmpfile) (struct inode *, struct dentry *, umode_t);
+       int (*fileattr_set)(struct user_namespace *mnt_userns,
+                           struct dentry *dentry, struct fileattr *fa);
+       int (*fileattr_get)(struct dentry *dentry, struct fileattr *fa);
 
 locking rules:
        all may block
 
-============   =============================================
+=============  =============================================
 ops            i_rwsem(inode)
-============   =============================================
+=============  =============================================
 lookup:                shared
 create:                exclusive
 link:          exclusive (both)
@@ -107,7 +110,9 @@ fiemap:             no
 update_time:   no
 atomic_open:   shared (exclusive if O_CREAT is set in open flags)
 tmpfile:       no
-============   =============================================
+fileattr_get:  no or exclusive
+fileattr_set:  exclusive
+=============  =============================================
 
 
        Additionally, ->rmdir(), ->unlink() and ->rename() have ->i_rwsem