105 static int mnt_alloc_id(struct mount *mnt)  in mnt_alloc_id()
115 static void mnt_free_id(struct mount *mnt)  in mnt_free_id()
123 static int mnt_alloc_group_id(struct mount *mnt)  in mnt_alloc_group_id()
136 void mnt_release_group_id(struct mount *mnt)  in mnt_release_group_id()
145 static inline void mnt_add_count(struct mount *mnt, int n)  in mnt_add_count()
159 int mnt_get_count(struct mount *mnt)  in mnt_get_count()
175 static struct mount *alloc_vfsmnt(const char *name)  in alloc_vfsmnt()
177 	struct mount *mnt = kmem_cache_zalloc(mnt_cache, GFP_KERNEL);  in alloc_vfsmnt()
252 static inline void mnt_inc_writers(struct mount *mnt)  in mnt_inc_writers()
261 static inline void mnt_dec_writers(struct mount *mnt)  in mnt_dec_writers()
270 static unsigned int mnt_get_writers(struct mount *mnt)  in mnt_get_writers()
313 	struct mount *mnt = real_mount(m);  in __mnt_want_write()
462 static int mnt_make_readonly(struct mount *mnt)  in mnt_make_readonly()
504 static int __mnt_unmake_readonly(struct mount *mnt)  in __mnt_unmake_readonly()
514 	struct mount *mnt;  in sb_prepare_remount_readonly()
548 static void free_vfsmnt(struct mount *mnt)  in free_vfsmnt()
559 	free_vfsmnt(container_of(head, struct mount, mnt_rcu));  in delayed_free_vfsmnt()
565 	struct mount *mnt;  in __legitimize_mnt()
608 struct mount *__lookup_mnt(struct vfsmount *mnt, struct dentry *dentry)  in __lookup_mnt()
611 	struct mount *p;  in __lookup_mnt()
637 	struct mount *child_mnt;  in lookup_mnt()
661 static inline bool mnt_is_cursor(struct mount *mnt)  in mnt_is_cursor()
684 	struct mount *mnt;  in __is_local_mountpoint()
790 static inline int check_mnt(struct mount *mnt)  in check_mnt()
820 static struct mountpoint *unhash_mnt(struct mount *mnt)  in unhash_mnt()
836 static void umount_mnt(struct mount *mnt)  in umount_mnt()
844 void mnt_set_mountpoint(struct mount *mnt,  in mnt_set_mountpoint()
846 			struct mount *child_mnt)  in mnt_set_mountpoint()
856 static void __attach_mnt(struct mount *mnt, struct mount *parent)  in __attach_mnt()
866 static void attach_mnt(struct mount *mnt,  in attach_mnt()
867 			struct mount *parent,  in attach_mnt()
874 void mnt_change_mountpoint(struct mount *parent, struct mountpoint *mp, struct mount *mnt)  in mnt_change_mountpoint()
877 	struct mount *old_parent = mnt->mnt_parent;  in mnt_change_mountpoint()
892 static void commit_tree(struct mount *mnt)  in commit_tree()
894 	struct mount *parent = mnt->mnt_parent;  in commit_tree()
895 	struct mount *m;  in commit_tree()
914 static struct mount *next_mnt(struct mount *p, struct mount *root)  in next_mnt()
927 	return list_entry(next, struct mount, mnt_child);  in next_mnt()
930 static struct mount *skip_mnt_tree(struct mount *p)  in skip_mnt_tree()
934 		p = list_entry(prev, struct mount, mnt_child);  in skip_mnt_tree()
951 	struct mount *mnt;  in vfs_create_mount()
1032 static struct mount *clone_mnt(struct mount *old, struct dentry *root,  in clone_mnt()
1036 	struct mount *mnt;  in clone_mnt()
1098 static void cleanup_mnt(struct mount *mnt)  in cleanup_mnt()
1101 	struct mount *m;  in cleanup_mnt()
1125 	cleanup_mnt(container_of(head, struct mount, mnt_rcu));  in __cleanup_mnt()
1132 	struct mount *m, *t;  in delayed_mntput()
1139 static void mntput_no_expire(struct mount *mnt)  in mntput_no_expire()
1184 		struct mount *p, *tmp;  in mntput_no_expire()
1210 		struct mount *m = real_mount(mnt);  in mntput()
1258 	struct mount *p;  in mnt_clone_internal()
1267 static struct mount *mnt_list_next(struct mnt_namespace *ns,  in mnt_list_next()
1270 	struct mount *mnt, *ret = NULL;  in mnt_list_next()
1308 	struct mount *mnt = v;  in m_next()
1317 	struct mount *mnt = v;  in m_stop()
1331 	struct mount *r = v;  in m_show()
1342 void mnt_cursor_del(struct mnt_namespace *ns, struct mount *cursor)  in mnt_cursor_del()
1362 	struct mount *mnt = real_mount(m);  in may_umount_tree()
1365 	struct mount *p;  in may_umount_tree()
1415 	struct mount *m;  in namespace_unlock()
1447 static bool disconnect_mount(struct mount *mnt, enum umount_tree_flags how)  in disconnect_mount()
1480 static void umount_tree(struct mount *mnt, enum umount_tree_flags how)  in umount_tree()
1483 	struct mount *p;  in umount_tree()
1506 		p = list_first_entry(&tmp_list, struct mount, mnt_list);  in umount_tree()
1534 static void shrink_submounts(struct mount *mnt);
1559 static int do_umount(struct mount *mnt, int flags)  in do_umount()
1668 	struct mount *mnt;  in __detach_mounts()
1678 		mnt = hlist_entry(mp->m_list.first, struct mount, mnt_mp_list);  in __detach_mounts()
1718 	struct mount *mnt = real_mount(path->mnt);  in can_umount()
1736 	struct mount *mnt = real_mount(path->mnt);  in path_umount()
1814 struct mount *copy_tree(struct mount *mnt, struct dentry *dentry,  in copy_tree()
1817 	struct mount *res, *p, *q, *r, *parent;  in copy_tree()
1833 		struct mount *s;  in copy_tree()
1883 	struct mount *tree;  in collect_mounts()
1926 static bool has_locked_children(struct mount *mnt, struct dentry *dentry)  in has_locked_children()
1928 	struct mount *child;  in has_locked_children()
1951 	struct mount *old_mnt = real_mount(path->mnt);  in clone_private_mount()
1952 	struct mount *new_mnt;  in clone_private_mount()
1984 	struct mount *mnt;  in iterate_mounts()
1996 static void lock_mnt_tree(struct mount *mnt)  in lock_mnt_tree()
1998 	struct mount *p;  in lock_mnt_tree()
2023 static void cleanup_group_ids(struct mount *mnt, struct mount *end)  in cleanup_group_ids()
2025 	struct mount *p;  in cleanup_group_ids()
2033 static int invent_group_ids(struct mount *mnt, bool recurse)  in invent_group_ids()
2035 	struct mount *p;  in invent_group_ids()
2050 int count_mounts(struct mnt_namespace *ns, struct mount *mnt)  in count_mounts()
2054 	struct mount *p;  in count_mounts()
2135 static int attach_recursive_mnt(struct mount *source_mnt,  in attach_recursive_mnt()
2136 			struct mount *dest_mnt,  in attach_recursive_mnt()
2144 	struct mount *child, *p;  in attach_recursive_mnt()
2189 		struct mount *q;  in attach_recursive_mnt()
2208 		child = hlist_entry(tree_list.first, struct mount, mnt_hash);  in attach_recursive_mnt()
2265 static int graft_tree(struct mount *mnt, struct mount *p, struct mountpoint *mp)  in graft_tree()
2299 	struct mount *m;  in do_change_type()
2300 	struct mount *mnt = real_mount(path->mnt);  in do_change_type()
2329 static struct mount *__do_loopback(struct path *old_path, int recurse)  in __do_loopback()
2331 	struct mount *mnt = ERR_PTR(-EINVAL), *old = real_mount(old_path->mnt);  in __do_loopback()
2360 	struct mount *mnt = NULL, *parent;  in do_loopback()
2406 	struct mount *mnt, *p;  in open_detached_copy()
2498 static bool can_change_locked_flags(struct mount *mnt, unsigned int mnt_flags)  in can_change_locked_flags()
2525 static int change_mount_ro_state(struct mount *mnt, unsigned int mnt_flags)  in change_mount_ro_state()
2542 static void set_mount_attributes(struct mount *mnt, unsigned int mnt_flags)  in set_mount_attributes()
2581 	struct mount *mnt = real_mount(path->mnt);  in do_reconfigure_mnt()
2614 	struct mount *mnt = real_mount(path->mnt);  in do_remount()
2649 static inline int tree_contains_unbindable(struct mount *mnt)  in tree_contains_unbindable()
2651 	struct mount *p;  in tree_contains_unbindable()
2665 static bool check_for_nsfs_mounts(struct mount *subtree)  in check_for_nsfs_mounts()
2667 	struct mount *p;  in check_for_nsfs_mounts()
2684 	struct mount *p;  in do_move_mount()
2685 	struct mount *old;  in do_move_mount()
2686 	struct mount *parent;  in do_move_mount()
2783 static int do_add_mount(struct mount *newmnt, struct mountpoint *mp,  in do_add_mount()
2786 	struct mount *parent = real_mount(path->mnt);  in do_add_mount()
2911 	struct mount *mnt;  in finish_automount()
2999 	struct mount *mnt, *next;  in mark_mounts_for_expiry()
3021 		mnt = list_first_entry(&graveyard, struct mount, mnt_expire);  in mark_mounts_for_expiry()
3037 static int select_submounts(struct mount *parent, struct list_head *graveyard)  in select_submounts()
3039 	struct mount *this_parent = parent;  in select_submounts()
3048 		struct mount *mnt = list_entry(tmp, struct mount, mnt_child);  in select_submounts()
3083 static void shrink_submounts(struct mount *mnt)  in shrink_submounts()
3086 	struct mount *m;  in shrink_submounts()
3091 			m = list_first_entry(&graveyard, struct mount,  in shrink_submounts()
3316 	struct mount *p, *q;  in copy_mnt_ns()
3317 	struct mount *old;  in copy_mnt_ns()
3318 	struct mount *new;  in copy_mnt_ns()
3392 	struct mount *mnt = real_mount(m);  in mount_subtree()
3427 SYSCALL_DEFINE5(mount, char __user *, dev_name, char __user *, dir_name,  in SYSCALL_DEFINE5()  argument
3472 	struct mount *mnt;  in SYSCALL_DEFINE3()
3664 bool is_path_reachable(struct mount *mnt, struct dentry *dentry,  in is_path_reachable()
3713 	struct mount *new_mnt, *root_mnt, *old_mnt, *root_parent, *ex_parent;  in SYSCALL_DEFINE2()
3811 	struct mount *m;  in init_mount_tree()
3842 	mnt_cache = kmem_cache_create("mnt_cache", sizeof(struct mount),  in mnt_init()
3954 	struct mount *mnt;  in mnt_already_visible()
3960 		struct mount *child;  in mnt_already_visible()