469 	mntget(path->mnt);  in path_get()
483 	mntput(path->mnt);  in path_put()
562 	struct vfsmount *mnt = path->mnt;  in path_connected()  local
563 	struct super_block *sb = mnt->mnt_sb;  in path_connected()
566 	if (!(sb->s_iflags & SB_I_MULTIROOT) && (mnt->mnt_root == sb->s_root))  in path_connected()
569 	return is_subdir(path->dentry, mnt->mnt_root);  in path_connected()
614 	int res = __legitimize_mnt(path->mnt, nd->m_seq);  in legitimize_path()
617 			path->mnt = NULL;  in legitimize_path()
644 	if (!nd->root.mnt || (nd->flags & LOOKUP_ROOT))  in legitimize_root()
690 	nd->path.mnt = NULL;  in unlazy_walk()
717 	if (unlikely(!legitimize_mnt(nd->path.mnt, nd->m_seq)))  in unlazy_child()
743 	nd->path.mnt = NULL;  in unlazy_child()
780 			nd->root.mnt = NULL;  in complete_walk()
822 	if (path->mnt != nd->path.mnt)  in path_put_conditional()
823 		mntput(path->mnt);  in path_put_conditional()
831 		if (nd->path.mnt != path->mnt)  in path_to_nameidata()
832 			mntput(nd->path.mnt);  in path_to_nameidata()
834 	nd->path.mnt = path->mnt;  in path_to_nameidata()
1082 		if (!nd->root.mnt)  in get_link()
1106 	struct mount *mnt = real_mount(path->mnt);  in follow_up()  local
1111 	parent = mnt->mnt_parent;  in follow_up()
1112 	if (parent == mnt) {  in follow_up()
1116 	mntget(&parent->mnt);  in follow_up()
1117 	mountpoint = dget(mnt->mnt_mountpoint);  in follow_up()
1121 	mntput(path->mnt);  in follow_up()
1122 	path->mnt = &parent->mnt;  in follow_up()
1135 	struct vfsmount *mnt;  in follow_automount()  local
1161 	mnt = path->dentry->d_op->d_automount(path);  in follow_automount()
1162 	if (IS_ERR(mnt)) {  in follow_automount()
1172 		if (PTR_ERR(mnt) == -EISDIR && (nd->flags & LOOKUP_PARENT))  in follow_automount()
1174 		return PTR_ERR(mnt);  in follow_automount()
1177 	if (!mnt) /* mount collision */  in follow_automount()
1182 		mntget(path->mnt);  in follow_automount()
1185 	err = finish_automount(mnt, path);  in follow_automount()
1193 		path->mnt = mnt;  in follow_automount()
1194 		path->dentry = dget(mnt->mnt_root);  in follow_automount()
1214 	struct vfsmount *mnt = path->mnt; /* held by caller, must be left alone */  in follow_managed()  local
1241 					mntput(path->mnt);  in follow_managed()
1242 				path->mnt = mounted;  in follow_managed()
1266 	if (need_mntput && path->mnt == mnt)  in follow_managed()
1267 		mntput(path->mnt);  in follow_managed()
1284 		mntput(path->mnt);  in follow_down_one()
1285 		path->mnt = mounted;  in follow_down_one()
1325 		mounted = __lookup_mnt(path->mnt, path->dentry);  in __follow_mount_rcu()
1328 		path->mnt = &mounted->mnt;  in __follow_mount_rcu()
1329 		path->dentry = mounted->mnt.mnt_root;  in __follow_mount_rcu()
1350 		if (nd->path.dentry != nd->path.mnt->mnt_root) {  in follow_dotdot_rcu()
1365 			struct mount *mnt = real_mount(nd->path.mnt);  in follow_dotdot_rcu()  local
1366 			struct mount *mparent = mnt->mnt_parent;  in follow_dotdot_rcu()
1367 			struct dentry *mountpoint = mnt->mnt_mountpoint;  in follow_dotdot_rcu()
1372 			if (&mparent->mnt == nd->path.mnt)  in follow_dotdot_rcu()
1376 			nd->path.mnt = &mparent->mnt;  in follow_dotdot_rcu()
1383 		mounted = __lookup_mnt(nd->path.mnt, nd->path.dentry);  in follow_dotdot_rcu()
1388 		nd->path.mnt = &mounted->mnt;  in follow_dotdot_rcu()
1389 		nd->path.dentry = mounted->mnt.mnt_root;  in follow_dotdot_rcu()
1433 			mntput(path->mnt);  in follow_down()
1434 			path->mnt = mounted;  in follow_down()
1456 		mntput(path->mnt);  in follow_mount()
1457 		path->mnt = mounted;  in follow_mount()
1478 		if (nd->path.dentry != nd->path.mnt->mnt_root) {  in follow_dotdot()
1550 	struct vfsmount *mnt = nd->path.mnt;  in lookup_fast()  local
1598 			path->mnt = mnt;  in lookup_fast()
1625 	path->mnt = mnt;  in lookup_fast()
1700 		if (!nd->root.mnt)  in handle_dots()
1720 		if (link->mnt == nd->path.mnt)  in pick_link()
1721 			mntget(link->mnt);  in pick_link()
1730 				nd->path.mnt = NULL;  in pick_link()
1805 		path.mnt = nd->path.mnt;  in walk_component()
2191 	nd->root.mnt = NULL;  in path_init()
2192 	nd->path.mnt = NULL;  in path_init()
2319 		nd->path.mnt = NULL;  in path_lookupat()
2361 		nd->path.mnt = NULL;  in path_parentat()
2437 int vfs_path_lookup(struct dentry *dentry, struct vfsmount *mnt,  in vfs_path_lookup()  argument
2441 	struct path root = {.mnt = mnt, .dentry = dentry};  in vfs_path_lookup()
2665 	path.mnt = nd->path.mnt;  in mountpoint_last()
2690 		nd->path.mnt = NULL;  in path_mountpoint()
2932 	return !(path->mnt->mnt_flags & MNT_NODEV) &&  in may_open_dev()
2933 		!(path->mnt->mnt_sb->s_iflags & SB_I_NODEV);  in may_open_dev()
3061 	file->f_path.mnt = nd->path.mnt;  in atomic_open()
3093 				path->mnt = nd->path.mnt;  in atomic_open()
3236 	path->mnt = nd->path.mnt;  in lookup_open()
3301 		error = mnt_want_write(nd->path.mnt);  in do_last()
3347 		mnt_drop_write(nd->path.mnt);  in do_last()
3398 		error = mnt_want_write(nd->path.mnt);  in do_last()
3421 		mnt_drop_write(nd->path.mnt);  in do_last()
3473 	error = mnt_want_write(path.mnt);  in do_tmpfile()
3487 	file->f_path.mnt = path.mnt;  in do_tmpfile()
3490 	mnt_drop_write(path.mnt);  in do_tmpfile()
3564 struct file *do_file_open_root(struct dentry *dentry, struct vfsmount *mnt,  in do_file_open_root()  argument
3572 	nd.root.mnt = mnt;  in do_file_open_root()
3621 	err2 = mnt_want_write(path->mnt);  in filename_create()
3657 		mnt_drop_write(path->mnt);  in filename_create()
3676 	mnt_drop_write(path->mnt);  in done_path_create()
3916 	error = mnt_want_write(path.mnt);  in do_rmdir()
3937 	mnt_drop_write(path.mnt);  in do_rmdir()
4037 	error = mnt_want_write(path.mnt);  in do_unlinkat()
4068 	mnt_drop_write(path.mnt);  in do_unlinkat()
4293 	if (old_path.mnt != new_path.mnt)  in do_linkat()
4552 	if (old_path.mnt != new_path.mnt)  in do_renameat2()
4564 	error = mnt_want_write(old_path.mnt);  in do_renameat2()
4633 	mnt_drop_write(old_path.mnt);  in do_renameat2()