On Thu, Apr 14, 2016 at 04:48:32PM -0700, Andrey Ulanov wrote:
> +++ b/fs/namespace.c
> @@ -1562,6 +1562,7 @@ void __detach_mounts(struct dentry *dentry)
> goto out_unlock;
>
> lock_mount_hash();
> + event++;
That part makes sense.
> -/*
> +/*
> * Is the caller allowed to modify his namespace?
> */
> static inline bool may_mount(void)
> @@ -1765,6 +1766,7 @@ void drop_collected_mounts(struct vfsmount *mnt)
> {
> namespace_lock();
> lock_mount_hash();
> + event++;
... but what the hell is this one for?
