> > 	- is hardcoded sizeof(long) alignment okay?
>Use the ALIGN() macro.

	IIRC ALIGN() was not usable for this, does not capture sparc64 case
	or something (maybe my memory is wrong).

> > 	- do we need to change them in the future?
> > 	- suppose we need to change them over time.  what should we do?
> > 	  have a sysctl variable that returns alignment boundary from the
> > 	  kernel side, and let the userland use the value?
>Oh, that sounds like a good idea.

	I'll try to do this.

itojun