> Log Message:
> Import of POSIX Asynchronous I/O.
> Seems to be quite stable. Some work still left to do.
> 
> Please note, that syscalls are not yet MP-safe, because
> of the file and vnode subsystems.
> 
> Reviewed by: <tech-kern>, <ad>

> cvs rdiff -r0 -r1.1 src/sys/sys/aio.h

- i think members of struct aiocb should be ordered in an alignment
  friendly manner.

- why _state is of char, rather than, say, int?

YAMAMOTO Takashi