tree 1703990ecd2af3c5df59bfa905f380e673504ec7
parent 230c6402b1b305c21c91b56cd9de95a608898506
author Al Viro <viro@zeniv.linux.org.uk> 1556299284 -0400
committer Al Viro <viro@zeniv.linux.org.uk> 1556299325 -0400

switch fsnotify_move() to passing const struct qstr * for old_name

note that in the second (RENAME_EXCHANGE) call of fsnotify_move() in
vfs_rename() the old_dentry->d_name is guaranteed to be unchanged
throughout the evaluation of fsnotify_move() (by the fact that the
parent directory is locked exclusive), so we don't need to fetch
old_dentry->d_name.name in the caller.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>