PAGE_SIZE Availability Inconsistency

[H. Peter Anvin]

Anton Blanchard wrote:
> Hi,
> 
>> I might be missing something but doesn't this break every
>> SWAP partition that was created with something other than
>> MIN_PAGE_SIZE?
> 
> It does. I was thinking we could work around it in ppc64 (64kB is quite
> new), but I forgot there are options on sparc64 to change the page size :)
> 
> The other option is to create a v3 swap format that doesnt use any
> PAGE_SIZE parameters.
> 

The best thing to do would be to look for the magic both at PAGE_SIZE 
(for compatibility) and MIN_PAGE_SIZE (for sanity.)

	-hpa