126 static int mnt_alloc_id(struct mount *mnt)  in mnt_alloc_id()
136 static void mnt_free_id(struct mount *mnt)  in mnt_free_id()
144 static int mnt_alloc_group_id(struct mount *mnt)  in mnt_alloc_group_id()
157 void mnt_release_group_id(struct mount *mnt)  in mnt_release_group_id()
166 static inline void mnt_add_count(struct mount *mnt, int n)  in mnt_add_count()
180 int mnt_get_count(struct mount *mnt)  in mnt_get_count()
196 static struct mount *alloc_vfsmnt(const char *name)  in alloc_vfsmnt()
198 	struct mount *mnt = kmem_cache_zalloc(mnt_cache, GFP_KERNEL);  in alloc_vfsmnt()
275 static inline void mnt_inc_writers(struct mount *mnt)  in mnt_inc_writers()
284 static inline void mnt_dec_writers(struct mount *mnt)  in mnt_dec_writers()
293 static unsigned int mnt_get_writers(struct mount *mnt)  in mnt_get_writers()
336 	struct mount *mnt = real_mount(m);  in __mnt_want_write()
506 static inline int mnt_hold_writers(struct mount *mnt)  in mnt_hold_writers()
549 static inline void mnt_unhold_writers(struct mount *mnt)  in mnt_unhold_writers()
559 static int mnt_make_readonly(struct mount *mnt)  in mnt_make_readonly()
572 	struct mount *mnt;  in sb_prepare_remount_readonly()
603 static void free_vfsmnt(struct mount *mnt)  in free_vfsmnt()
619 	free_vfsmnt(container_of(head, struct mount, mnt_rcu));  in delayed_free_vfsmnt()
625 	struct mount *mnt;  in __legitimize_mnt()
668 struct mount *__lookup_mnt(struct vfsmount *mnt, struct dentry *dentry)  in __lookup_mnt()
671 	struct mount *p;  in __lookup_mnt()
697 	struct mount *child_mnt;  in lookup_mnt()
721 static inline bool mnt_is_cursor(struct mount *mnt)  in mnt_is_cursor()
744 	struct mount *mnt;  in __is_local_mountpoint()
850 static inline int check_mnt(struct mount *mnt)  in check_mnt()
880 static struct mountpoint *unhash_mnt(struct mount *mnt)  in unhash_mnt()
896 static void umount_mnt(struct mount *mnt)  in umount_mnt()
904 void mnt_set_mountpoint(struct mount *mnt,  in mnt_set_mountpoint()
906 			struct mount *child_mnt)  in mnt_set_mountpoint()
916 static void __attach_mnt(struct mount *mnt, struct mount *parent)  in __attach_mnt()
926 static void attach_mnt(struct mount *mnt,  in attach_mnt()
927 			struct mount *parent,  in attach_mnt()
934 void mnt_change_mountpoint(struct mount *parent, struct mountpoint *mp, struct mount *mnt)  in mnt_change_mountpoint()
937 	struct mount *old_parent = mnt->mnt_parent;  in mnt_change_mountpoint()
952 static void commit_tree(struct mount *mnt)  in commit_tree()
954 	struct mount *parent = mnt->mnt_parent;  in commit_tree()
955 	struct mount *m;  in commit_tree()
974 static struct mount *next_mnt(struct mount *p, struct mount *root)  in next_mnt()
987 	return list_entry(next, struct mount, mnt_child);  in next_mnt()
990 static struct mount *skip_mnt_tree(struct mount *p)  in skip_mnt_tree()
994 		p = list_entry(prev, struct mount, mnt_child);  in skip_mnt_tree()
1011 	struct mount *mnt;  in vfs_create_mount()
1097 static struct mount *clone_mnt(struct mount *old, struct dentry *root,  in clone_mnt()
1101 	struct mount *mnt;  in clone_mnt()
1166 static void cleanup_mnt(struct mount *mnt)  in cleanup_mnt()
1169 	struct mount *m;  in cleanup_mnt()
1193 	cleanup_mnt(container_of(head, struct mount, mnt_rcu));  in __cleanup_mnt()
1200 	struct mount *m, *t;  in delayed_mntput()
1207 static void mntput_no_expire(struct mount *mnt)  in mntput_no_expire()
1252 		struct mount *p, *tmp;  in mntput_no_expire()
1278 		struct mount *m = real_mount(mnt);  in mntput()
1327 	struct mount *p;  in mnt_clone_internal()
1336 static struct mount *mnt_list_next(struct mnt_namespace *ns,  in mnt_list_next()
1339 	struct mount *mnt, *ret = NULL;  in mnt_list_next()
1377 	struct mount *mnt = v;  in m_next()
1386 	struct mount *mnt = v;  in m_stop()
1400 	struct mount *r = v;  in m_show()
1411 void mnt_cursor_del(struct mnt_namespace *ns, struct mount *cursor)  in mnt_cursor_del()
1431 	struct mount *mnt = real_mount(m);  in may_umount_tree()
1434 	struct mount *p;  in may_umount_tree()
1484 	struct mount *m;  in namespace_unlock()
1516 static bool disconnect_mount(struct mount *mnt, enum umount_tree_flags how)  in disconnect_mount()
1549 static void umount_tree(struct mount *mnt, enum umount_tree_flags how)  in umount_tree()
1552 	struct mount *p;  in umount_tree()
1575 		p = list_first_entry(&tmp_list, struct mount, mnt_list);  in umount_tree()
1603 static void shrink_submounts(struct mount *mnt);
1628 static int do_umount(struct mount *mnt, int flags)  in do_umount()
1737 	struct mount *mnt;  in __detach_mounts()
1747 		mnt = hlist_entry(mp->m_list.first, struct mount, mnt_mp_list);  in __detach_mounts()
1779 	struct mount *mnt = real_mount(path->mnt);  in can_umount()
1797 	struct mount *mnt = real_mount(path->mnt);  in path_umount()
1875 struct mount *copy_tree(struct mount *mnt, struct dentry *dentry,  in copy_tree()
1878 	struct mount *res, *p, *q, *r, *parent;  in copy_tree()
1894 		struct mount *s;  in copy_tree()
1944 	struct mount *tree;  in collect_mounts()
1987 static bool has_locked_children(struct mount *mnt, struct dentry *dentry)  in has_locked_children()
1989 	struct mount *child;  in has_locked_children()
2013 	struct mount *old_mnt = real_mount(path->mnt);  in clone_private_mount()
2014 	struct mount *new_mnt;  in clone_private_mount()
2046 	struct mount *mnt;  in iterate_mounts()
2058 static void lock_mnt_tree(struct mount *mnt)  in lock_mnt_tree()
2060 	struct mount *p;  in lock_mnt_tree()
2085 static void cleanup_group_ids(struct mount *mnt, struct mount *end)  in cleanup_group_ids()
2087 	struct mount *p;  in cleanup_group_ids()
2095 static int invent_group_ids(struct mount *mnt, bool recurse)  in invent_group_ids()
2097 	struct mount *p;  in invent_group_ids()
2112 int count_mounts(struct mnt_namespace *ns, struct mount *mnt)  in count_mounts()
2116 	struct mount *p;  in count_mounts()
2198 static int attach_recursive_mnt(struct mount *source_mnt,  in attach_recursive_mnt()
2199 			struct mount *dest_mnt,  in attach_recursive_mnt()
2207 	struct mount *child, *p;  in attach_recursive_mnt()
2252 		struct mount *q;  in attach_recursive_mnt()
2271 		child = hlist_entry(tree_list.first, struct mount, mnt_hash);  in attach_recursive_mnt()
2328 static int graft_tree(struct mount *mnt, struct mount *p, struct mountpoint *mp)  in graft_tree()
2362 	struct mount *m;  in do_change_type()
2363 	struct mount *mnt = real_mount(path->mnt);  in do_change_type()
2392 static struct mount *__do_loopback(struct path *old_path, int recurse)  in __do_loopback()
2394 	struct mount *mnt = ERR_PTR(-EINVAL), *old = real_mount(old_path->mnt);  in __do_loopback()
2423 	struct mount *mnt = NULL, *parent;  in do_loopback()
2469 	struct mount *mnt, *p;  in open_detached_copy()
2561 static bool can_change_locked_flags(struct mount *mnt, unsigned int mnt_flags)  in can_change_locked_flags()
2588 static int change_mount_ro_state(struct mount *mnt, unsigned int mnt_flags)  in change_mount_ro_state()
2602 static void set_mount_attributes(struct mount *mnt, unsigned int mnt_flags)  in set_mount_attributes()
2641 	struct mount *mnt = real_mount(path->mnt);  in do_reconfigure_mnt()
2680 	struct mount *mnt = real_mount(path->mnt);  in do_remount()
2723 static inline int tree_contains_unbindable(struct mount *mnt)  in tree_contains_unbindable()
2725 	struct mount *p;  in tree_contains_unbindable()
2739 static bool check_for_nsfs_mounts(struct mount *subtree)  in check_for_nsfs_mounts()
2741 	struct mount *p;  in check_for_nsfs_mounts()
2757 	struct mount *from, *to;  in do_set_group()
2807 		struct mount *m = from->mnt_master;  in do_set_group()
2830 	struct mount *p;  in do_move_mount()
2831 	struct mount *old;  in do_move_mount()
2832 	struct mount *parent;  in do_move_mount()
2929 static int do_add_mount(struct mount *newmnt, struct mountpoint *mp,  in do_add_mount()
2932 	struct mount *parent = real_mount(path->mnt);  in do_add_mount()
3063 	struct mount *mnt;  in finish_automount()
3151 	struct mount *mnt, *next;  in mark_mounts_for_expiry()
3173 		mnt = list_first_entry(&graveyard, struct mount, mnt_expire);  in mark_mounts_for_expiry()
3189 static int select_submounts(struct mount *parent, struct list_head *graveyard)  in select_submounts()
3191 	struct mount *this_parent = parent;  in select_submounts()
3200 		struct mount *mnt = list_entry(tmp, struct mount, mnt_child);  in select_submounts()
3235 static void shrink_submounts(struct mount *mnt)  in shrink_submounts()
3238 	struct mount *m;  in shrink_submounts()
3243 			m = list_first_entry(&graveyard, struct mount,  in shrink_submounts()
3468 	struct mount *p, *q;  in copy_mnt_ns()
3469 	struct mount *old;  in copy_mnt_ns()
3470 	struct mount *new;  in copy_mnt_ns()
3544 	struct mount *mnt = real_mount(m);  in mount_subtree()
3579 SYSCALL_DEFINE5(mount, char __user *, dev_name, char __user *, dir_name,  in SYSCALL_DEFINE5()  argument
3654 	struct mount *mnt;  in SYSCALL_DEFINE3()
3834 bool is_path_reachable(struct mount *mnt, struct dentry *dentry,  in is_path_reachable()
3883 	struct mount *new_mnt, *root_mnt, *old_mnt, *root_parent, *ex_parent;  in SYSCALL_DEFINE2()
3978 static unsigned int recalc_flags(struct mount_kattr *kattr, struct mount *mnt)  in recalc_flags()
3990 static int can_idmap_mount(const struct mount_kattr *kattr, struct mount *mnt)  in can_idmap_mount()
4038 				     const struct mount *mnt)  in mnt_allow_writers()
4045 static int mount_setattr_prepare(struct mount_kattr *kattr, struct mount *mnt)  in mount_setattr_prepare()
4047 	struct mount *m;  in mount_setattr_prepare()
4071 		struct mount *p;  in mount_setattr_prepare()
4094 static void do_idmap_mount(const struct mount_kattr *kattr, struct mount *mnt)  in do_idmap_mount()
4119 static void mount_setattr_commit(struct mount_kattr *kattr, struct mount *mnt)  in mount_setattr_commit()
4121 	struct mount *m;  in mount_setattr_commit()
4144 	struct mount *mnt = real_mount(path->mnt);  in do_mount_setattr()
4395 	struct mount *m;  in init_mount_tree()
4426 	mnt_cache = kmem_cache_create("mnt_cache", sizeof(struct mount),  in mnt_init()
4538 	struct mount *mnt;  in mnt_already_visible()
4544 		struct mount *child;  in mnt_already_visible()