* sysdeps/unix/sysv/linux/alpha/syscalls.list (readahead): Change caller from EXTRA to -. * sysdeps/unix/sysv/linux/x86_64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list: Likewise.