debugfs: use DCACHE_DONTCACHE

Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index 29c5ec3823427680c3ac07339e8ca7aec979a7f8..441e3547a4f37867b1617ea84d1efbe3ec6af496 100644 (file)
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -258,7 +258,6 @@ static struct vfsmount *debugfs_automount(struct path *path)
 }
 
 static const struct dentry_operations debugfs_dops = {
-       .d_delete = always_delete_dentry,
        .d_release = debugfs_release_dentry,
        .d_automount = debugfs_automount,
 };
@@ -274,6 +273,7 @@ static int debugfs_fill_super(struct super_block *sb, struct fs_context *fc)
 
        sb->s_op = &debugfs_super_operations;
        set_default_d_op(sb, &debugfs_dops);
+       sb->s_d_flags |= DCACHE_DONTCACHE;
 
        debugfs_apply_options(sb);