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, 6 deletions

diff --git a/fs/bad_inode.c b/fs/bad_inode.c
index 5f1538c03b1b..a05287a23f62 100644
--- a/fs/bad_inode.c
+++ b/fs/bad_inode.c
@@ -132,11 +132,6 @@ static int bad_file_check_flags(int flags)
         return -EIO;
 }
 
-static int bad_file_dir_notify(struct file *file, unsigned long arg)
-{
-        return -EIO;
-}
-
 static int bad_file_flock(struct file *filp, int cmd, struct file_lock *fl)
 {
         return -EIO;
@@ -179,7 +174,6 @@ static const struct file_operations bad_file_ops =
         .sendpage       = bad_file_sendpage,
         .get_unmapped_area = bad_file_get_unmapped_area,
         .check_flags    = bad_file_check_flags,
-        .dir_notify     = bad_file_dir_notify,
         .flock          = bad_file_flock,
         .splice_write   = bad_file_splice_write,
         .splice_read    = bad_file_splice_read,