static struct rw_semaphore namespace_sem;
/* /sys/fs */
-decl_subsys(fs, NULL, NULL);
-EXPORT_SYMBOL_GPL(fs_subsys);
+struct kobject *fs_kobj;
+EXPORT_SYMBOL_GPL(fs_kobj);
static inline unsigned long hash(struct vfsmount *mnt, struct dentry *dentry)
{
list_add(&mnt->mnt_slave, &old->mnt_slave_list);
mnt->mnt_master = old;
CLEAR_MNT_SHARED(mnt);
- } else {
+ } else if (!(flag & CL_PRIVATE)) {
if ((flag & CL_PROPAGATION) || IS_MNT_SHARED(old))
list_add(&mnt->mnt_share, &old->mnt_share);
if (IS_MNT_SLAVE(old))
return NULL;
}
+struct vfsmount *collect_mounts(struct vfsmount *mnt, struct dentry *dentry)
+{
+ struct vfsmount *tree;
+ down_read(&namespace_sem);
+ tree = copy_tree(mnt, dentry, CL_COPY_ALL | CL_PRIVATE);
+ up_read(&namespace_sem);
+ return tree;
+}
+
+void drop_collected_mounts(struct vfsmount *mnt)
+{
+ LIST_HEAD(umount_list);
+ down_read(&namespace_sem);
+ spin_lock(&vfsmount_lock);
+ umount_tree(mnt, 0, &umount_list);
+ spin_unlock(&vfsmount_lock);
+ up_read(&namespace_sem);
+ release_mounts(&umount_list);
+}
+
/*
* @source_mnt : mount tree to be attached
* @nd : place the mount tree @source_mnt is attached
mnt_flags |= MNT_RELATIME;
flags &= ~(MS_NOSUID | MS_NOEXEC | MS_NODEV | MS_ACTIVE |
- MS_NOATIME | MS_NODIRATIME | MS_RELATIME);
+ MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT);
/* ... and get the mountpoint */
retval = path_lookup(dir_name, LOOKUP_FOLLOW, &nd);
if (err)
printk(KERN_WARNING "%s: sysfs_init error: %d\n",
__FUNCTION__, err);
- err = subsystem_register(&fs_subsys);
- if (err)
- printk(KERN_WARNING "%s: subsystem_register error: %d\n",
- __FUNCTION__, err);
+ fs_kobj = kobject_create_and_add("fs", NULL);
+ if (!fs_kobj)
+ printk(KERN_WARNING "%s: kobj create error\n", __FUNCTION__);
init_rootfs();
init_mount_tree();
}