Subject: Re: swapfs filesystem design (and mount/umount question)
To: Simon Burge <>
From: Eduardo E. Horvath <>
List: tech-kern
Date: 03/19/2000 16:44:45
> Here's some rough notes on how I think a swapfs filesystem should be
> implemented from a layout POV.
>  A- The filesystem size will be limited to 2^32 512 bytes "blocks", as
>     this is how big the size parameter is (on 32 bit machines anyway),
>     and I've kept the size parameter in terms of 512 bytes blocks since
>     that matches what mfs uses.  Page offsets internally are u_int32_t's
>     so there's an absolute maximum filesystem size of 2^32 * PAGE_SIZE.
>     I don't see the maximum filesystem size as a real limitation...

Wouldn't paddr_t or psize_t be more appropriate than u_int32_t's?

Eduardo Horvath
	"I need to find a pithy new quote." -- me