Structs starting with `r' in kern

• read_args kern/sys_generic.c:59
• readlink_args kern/vfs_syscalls.c:1226
• readv_args kern/sys_generic.c:115
• reboot_args kern/kern_xxx.c:44
• recvfrom_args kern/uipc_syscalls.c:581
• recvmsg_args kern/uipc_syscalls.c:700
• rename_args kern/vfs_syscalls.c:1667
• revoke_args kern/vfs_syscalls.c:2056
• rexit_args kern/kern_exit.c:75
• rmdir_args kern/vfs_syscalls.c:1793