Structs starting with `r' in kern

• read_args kern/sys_generic.c:54
• readlink_args kern/vfs_syscalls.c:1236
• readv_args kern/sys_generic.c:110
• reboot_args kern/kern_xxx.c:44
• recvfrom_args kern/uipc_syscalls.c:582
• recvmsg_args kern/uipc_syscalls.c:701
• rename_args kern/vfs_syscalls.c:1695
• revoke_args kern/vfs_syscalls.c:2051
• rexit_args kern/kern_exit.c:70
• rmdir_args kern/vfs_syscalls.c:1820