kill ->dir_notify()

Remove the hopelessly misguided ->dir_notify().  The only instance (cifs)
has been broken by design from the very beginning; the objects it creates
are never destroyed, keep references to struct file they can outlive, nothing
that could possibly evict them exists on close(2) path *and* no locking
whatsoever is done to prevent races with close(), should the previous, er,
deficiencies someday be dealt with.

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

1 files changed, 0 insertions, 3 deletions

diff --git a/fs/dnotify.c b/fs/dnotify.c
index 676073b8dda5..b0aa2cde80bd 100644
--- a/fs/dnotify.c
+++ b/fs/dnotify.c
@@ -115,9 +115,6 @@ int fcntl_dirnotify(int fd, struct file *filp, unsigned long arg)
         dn->dn_next = inode->i_dnotify;
         inode->i_dnotify = dn;
         spin_unlock(&inode->i_lock);
-
-        if (filp->f_op && filp->f_op->dir_notify)
-                return filp->f_op->dir_notify(filp, arg);
         return 0;
 
 out_free: