vfs_get_link
link = vfs_get_link(lower_dentry, &done);
EXPORT_SYMBOL(vfs_get_link);
link = vfs_get_link(path.dentry, &done);
ctx.link = vfs_get_link(ctx.lowerpath.dentry, &done);
return vfs_get_link(ovl_dentry_real(dentry), done);
extern const char *vfs_get_link(struct dentry *, struct delayed_call *);