PAGE_SIZE Availability Inconsistency
David Miller
davem@davemloft.net
Thu Mar 8 21:48:00 GMT 2007
From: Anton Blanchard <anton@samba.org>
Date: Thu, 8 Mar 2007 15:42:36 -0600
> > The easiest way to fix this would be to always park the swap magic at
> > the offset of the smallest page size in use, which is 4K. This is
> > analogous how the offset for the ext2/3 superblock got fixed at 1K --
> > for 1K blocks, it's the second block, but for larger blocks, it's part
> > of the first block. If we fix the offset of the swap magic at 4096
> > minus the offset that's already there, it will always fall in the first
> > page regardless of page size.
>
> Yeah that makes sense. I gave it a go by creating a MIN_PAGE_SIZE
> define, and allowing an architecture to override it if required.
I might be missing something but doesn't this break every
SWAP partition that was created with something other than
MIN_PAGE_SIZE?
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