vfs_symlink
rc = vfs_symlink(&nop_mnt_idmap, lower_dir, lower_dentry,
EXPORT_SYMBOL(vfs_symlink);
error = vfs_symlink(mnt_idmap(path.mnt), path.dentry->d_inode,
host_err = vfs_symlink(&nop_mnt_idmap, d_inode(dentry), dnew, path, NULL);
int err = vfs_symlink(ovl_upper_mnt_idmap(ofs), dir, dentry, oldname, NULL);
int vfs_symlink(struct mnt_idmap *, struct inode *,