127 static int mnt_alloc_id(struct mount *mnt)  in mnt_alloc_id()
137 static void mnt_free_id(struct mount *mnt)  in mnt_free_id()
145 static int mnt_alloc_group_id(struct mount *mnt)  in mnt_alloc_group_id()
158 void mnt_release_group_id(struct mount *mnt)  in mnt_release_group_id()
167 static inline void mnt_add_count(struct mount *mnt, int n)  in mnt_add_count()
181 int mnt_get_count(struct mount *mnt)  in mnt_get_count()
197 static struct mount *alloc_vfsmnt(const char *name)  in alloc_vfsmnt()
199 	struct mount *mnt = kmem_cache_zalloc(mnt_cache, GFP_KERNEL);  in alloc_vfsmnt()
276 static inline void mnt_inc_writers(struct mount *mnt)  in mnt_inc_writers()
285 static inline void mnt_dec_writers(struct mount *mnt)  in mnt_dec_writers()
294 static unsigned int mnt_get_writers(struct mount *mnt)  in mnt_get_writers()
344 	struct mount *mnt = real_mount(m);  in __mnt_want_write()
516 static inline int mnt_hold_writers(struct mount *mnt)  in mnt_hold_writers()
559 static inline void mnt_unhold_writers(struct mount *mnt)  in mnt_unhold_writers()
569 static int mnt_make_readonly(struct mount *mnt)  in mnt_make_readonly()
582 	struct mount *mnt;  in sb_prepare_remount_readonly()
611 static void free_vfsmnt(struct mount *mnt)  in free_vfsmnt()
623 	free_vfsmnt(container_of(head, struct mount, mnt_rcu));  in delayed_free_vfsmnt()
629 	struct mount *mnt;  in __legitimize_mnt()
688 struct mount *__lookup_mnt(struct vfsmount *mnt, struct dentry *dentry)  in __lookup_mnt()
691 	struct mount *p;  in __lookup_mnt()
717 	struct mount *child_mnt;  in lookup_mnt()
741 static inline bool mnt_is_cursor(struct mount *mnt)  in mnt_is_cursor()
764 	struct mount *mnt;  in __is_local_mountpoint()
870 static inline int check_mnt(struct mount *mnt)  in check_mnt()
900 static struct mountpoint *unhash_mnt(struct mount *mnt)  in unhash_mnt()
916 static void umount_mnt(struct mount *mnt)  in umount_mnt()
924 void mnt_set_mountpoint(struct mount *mnt,  in mnt_set_mountpoint()
926 			struct mount *child_mnt)  in mnt_set_mountpoint()
951 static void mnt_set_mountpoint_beneath(struct mount *new_parent,  in mnt_set_mountpoint_beneath()
952 				       struct mount *top_mnt,  in mnt_set_mountpoint_beneath()
955 	struct mount *old_top_parent = top_mnt->mnt_parent;  in mnt_set_mountpoint_beneath()
963 static void __attach_mnt(struct mount *mnt, struct mount *parent)  in __attach_mnt()
992 static void attach_mnt(struct mount *mnt, struct mount *parent,  in attach_mnt()
1008 void mnt_change_mountpoint(struct mount *parent, struct mountpoint *mp, struct mount *mnt)  in mnt_change_mountpoint()
1011 	struct mount *old_parent = mnt->mnt_parent;  in mnt_change_mountpoint()
1026 static void commit_tree(struct mount *mnt)  in commit_tree()
1028 	struct mount *parent = mnt->mnt_parent;  in commit_tree()
1029 	struct mount *m;  in commit_tree()
1048 static struct mount *next_mnt(struct mount *p, struct mount *root)  in next_mnt()
1061 	return list_entry(next, struct mount, mnt_child);  in next_mnt()
1064 static struct mount *skip_mnt_tree(struct mount *p)  in skip_mnt_tree()
1068 		p = list_entry(prev, struct mount, mnt_child);  in skip_mnt_tree()
1085 	struct mount *mnt;  in vfs_create_mount()
1166 static struct mount *clone_mnt(struct mount *old, struct dentry *root,  in clone_mnt()
1170 	struct mount *mnt;  in clone_mnt()
1234 static void cleanup_mnt(struct mount *mnt)  in cleanup_mnt()
1237 	struct mount *m;  in cleanup_mnt()
1261 	cleanup_mnt(container_of(head, struct mount, mnt_rcu));  in __cleanup_mnt()
1268 	struct mount *m, *t;  in delayed_mntput()
1275 static void mntput_no_expire(struct mount *mnt)  in mntput_no_expire()
1320 		struct mount *p, *tmp;  in mntput_no_expire()
1346 		struct mount *m = real_mount(mnt);  in mntput()
1406 	struct mount *p;  in mnt_clone_internal()
1415 static struct mount *mnt_list_next(struct mnt_namespace *ns,  in mnt_list_next()
1418 	struct mount *mnt, *ret = NULL;  in mnt_list_next()
1456 	struct mount *mnt = v;  in m_next()
1465 	struct mount *mnt = v;  in m_stop()
1479 	struct mount *r = v;  in m_show()
1490 void mnt_cursor_del(struct mnt_namespace *ns, struct mount *cursor)  in mnt_cursor_del()
1510 	struct mount *mnt = real_mount(m);  in may_umount_tree()
1513 	struct mount *p;  in may_umount_tree()
1563 	struct mount *m;  in namespace_unlock()
1595 static bool disconnect_mount(struct mount *mnt, enum umount_tree_flags how)  in disconnect_mount()
1628 static void umount_tree(struct mount *mnt, enum umount_tree_flags how)  in umount_tree()
1631 	struct mount *p;  in umount_tree()
1654 		p = list_first_entry(&tmp_list, struct mount, mnt_list);  in umount_tree()
1682 static void shrink_submounts(struct mount *mnt);
1707 static int do_umount(struct mount *mnt, int flags)  in do_umount()
1816 	struct mount *mnt;  in __detach_mounts()
1826 		mnt = hlist_entry(mp->m_list.first, struct mount, mnt_mp_list);  in __detach_mounts()
1871 	struct mount *mnt = real_mount(path->mnt);  in can_umount()
1889 	struct mount *mnt = real_mount(path->mnt);  in path_umount()
1967 struct mount *copy_tree(struct mount *mnt, struct dentry *dentry,  in copy_tree()
1970 	struct mount *res, *p, *q, *r, *parent;  in copy_tree()
1986 		struct mount *s;  in copy_tree()
2036 	struct mount *tree;  in collect_mounts()
2079 static bool has_locked_children(struct mount *mnt, struct dentry *dentry)  in has_locked_children()
2081 	struct mount *child;  in has_locked_children()
2105 	struct mount *old_mnt = real_mount(path->mnt);  in clone_private_mount()
2106 	struct mount *new_mnt;  in clone_private_mount()
2138 	struct mount *mnt;  in iterate_mounts()
2150 static void lock_mnt_tree(struct mount *mnt)  in lock_mnt_tree()
2152 	struct mount *p;  in lock_mnt_tree()
2177 static void cleanup_group_ids(struct mount *mnt, struct mount *end)  in cleanup_group_ids()
2179 	struct mount *p;  in cleanup_group_ids()
2187 static int invent_group_ids(struct mount *mnt, bool recurse)  in invent_group_ids()
2189 	struct mount *p;  in invent_group_ids()
2204 int count_mounts(struct mnt_namespace *ns, struct mount *mnt)  in count_mounts()
2208 	struct mount *p;  in count_mounts()
2299 static int attach_recursive_mnt(struct mount *source_mnt,  in attach_recursive_mnt()
2300 				struct mount *top_mnt,  in attach_recursive_mnt()
2308 	struct mount *child, *dest_mnt, *p;  in attach_recursive_mnt()
2367 		struct mount *q;  in attach_recursive_mnt()
2386 		child = hlist_entry(tree_list.first, struct mount, mnt_hash);  in attach_recursive_mnt()
2443 		struct mount *m;  in do_lock_mount()
2511 static int graft_tree(struct mount *mnt, struct mount *p, struct mountpoint *mp)  in graft_tree()
2545 	struct mount *m;  in do_change_type()
2546 	struct mount *mnt = real_mount(path->mnt);  in do_change_type()
2575 static struct mount *__do_loopback(struct path *old_path, int recurse)  in __do_loopback()
2577 	struct mount *mnt = ERR_PTR(-EINVAL), *old = real_mount(old_path->mnt);  in __do_loopback()
2606 	struct mount *mnt = NULL, *parent;  in do_loopback()
2652 	struct mount *mnt, *p;  in open_detached_copy()
2744 static bool can_change_locked_flags(struct mount *mnt, unsigned int mnt_flags)  in can_change_locked_flags()
2771 static int change_mount_ro_state(struct mount *mnt, unsigned int mnt_flags)  in change_mount_ro_state()
2785 static void set_mount_attributes(struct mount *mnt, unsigned int mnt_flags)  in set_mount_attributes()
2821 	struct mount *mnt = real_mount(path->mnt);  in do_reconfigure_mnt()
2860 	struct mount *mnt = real_mount(path->mnt);  in do_remount()
2903 static inline int tree_contains_unbindable(struct mount *mnt)  in tree_contains_unbindable()
2905 	struct mount *p;  in tree_contains_unbindable()
2919 static bool check_for_nsfs_mounts(struct mount *subtree)  in check_for_nsfs_mounts()
2921 	struct mount *p;  in check_for_nsfs_mounts()
2937 	struct mount *from, *to;  in do_set_group()
2987 		struct mount *m = from->mnt_master;  in do_set_group()
3052 	struct mount *mnt_from = real_mount(from->mnt),  in can_move_mount_beneath()
3078 	for (struct mount *p = mnt_from; mnt_has_parent(p); p = p->mnt_parent)  in can_move_mount_beneath()
3113 	struct mount *p;  in do_move_mount()
3114 	struct mount *old;  in do_move_mount()
3115 	struct mount *parent;  in do_move_mount()
3225 static int do_add_mount(struct mount *newmnt, struct mountpoint *mp,  in do_add_mount()
3228 	struct mount *parent = real_mount(path->mnt);  in do_add_mount()
3358 	struct mount *mnt;  in finish_automount()
3443 	struct mount *mnt, *next;  in mark_mounts_for_expiry()
3465 		mnt = list_first_entry(&graveyard, struct mount, mnt_expire);  in mark_mounts_for_expiry()
3481 static int select_submounts(struct mount *parent, struct list_head *graveyard)  in select_submounts()
3483 	struct mount *this_parent = parent;  in select_submounts()
3492 		struct mount *mnt = list_entry(tmp, struct mount, mnt_child);  in select_submounts()
3527 static void shrink_submounts(struct mount *mnt)  in shrink_submounts()
3530 	struct mount *m;  in shrink_submounts()
3535 			m = list_first_entry(&graveyard, struct mount,  in shrink_submounts()
3760 	struct mount *p, *q;  in copy_mnt_ns()
3761 	struct mount *old;  in copy_mnt_ns()
3762 	struct mount *new;  in copy_mnt_ns()
3837 	struct mount *mnt = real_mount(m);  in mount_subtree()
3872 SYSCALL_DEFINE5(mount, char __user *, dev_name, char __user *, dir_name,  in SYSCALL_DEFINE5()  argument
3947 	struct mount *mnt;  in SYSCALL_DEFINE3()
4132 bool is_path_reachable(struct mount *mnt, struct dentry *dentry,  in is_path_reachable()
4181 	struct mount *new_mnt, *root_mnt, *old_mnt, *root_parent, *ex_parent;  in SYSCALL_DEFINE2()
4276 static unsigned int recalc_flags(struct mount_kattr *kattr, struct mount *mnt)  in recalc_flags()
4288 static int can_idmap_mount(const struct mount_kattr *kattr, struct mount *mnt)  in can_idmap_mount()
4336 				     const struct mount *mnt)  in mnt_allow_writers()
4343 static int mount_setattr_prepare(struct mount_kattr *kattr, struct mount *mnt)  in mount_setattr_prepare()
4345 	struct mount *m;  in mount_setattr_prepare()
4369 		struct mount *p;  in mount_setattr_prepare()
4392 static void do_idmap_mount(const struct mount_kattr *kattr, struct mount *mnt)  in do_idmap_mount()
4408 static void mount_setattr_commit(struct mount_kattr *kattr, struct mount *mnt)  in mount_setattr_commit()
4410 	struct mount *m;  in mount_setattr_commit()
4433 	struct mount *mnt = real_mount(path->mnt);  in do_mount_setattr()
4696 	struct mount *m;  in init_mount_tree()
4727 	mnt_cache = kmem_cache_create("mnt_cache", sizeof(struct mount),  in mnt_init()
4838 	struct mount *mnt;  in mnt_already_visible()
4844 		struct mount *child;  in mnt_already_visible()