return 0;
}
+/*
+ * vfsmount lock must be held for write
+ */
void change_mnt_propagation(struct vfsmount *mnt, int type)
{
if (type == MS_SHARED) {
prev_src_mnt = child;
}
out:
- spin_lock(&vfsmount_lock);
+ br_write_lock(vfsmount_lock);
while (!list_empty(&tmp_list)) {
child = list_first_entry(&tmp_list, struct vfsmount, mnt_hash);
umount_tree(child, 0, &umount_list);
}
- spin_unlock(&vfsmount_lock);
+ br_write_unlock(vfsmount_lock);
release_mounts(&umount_list);
return ret;
}
* other mounts its parent propagates to.
* Check if any of these mounts that **do not have submounts**
* have more references than 'refcnt'. If so return busy.
+ *
+ * vfsmount lock must be held for read or write
*/
int propagate_mount_busy(struct vfsmount *mnt, int refcnt)
{
* collect all mounts that receive propagation from the mount in @list,
* and return these additional mounts in the same list.
* @list: the list of mounts to be unmounted.
+ *
+ * vfsmount lock must be held for write
*/
int propagate_umount(struct list_head *list)
{