Re: [patch] arca-vm-2.2.5

Andrea Arcangeli
1999-04-06T21:05:57Z

On Tue, 6 Apr 1999, Chuck Lever wrote:

>but still, why does it help to add the unshifted "offset"? doesn't seem
>like there's any new information in that.

The unshifted offset is useful for swap cache pages. When the page is a
swap cache page the page->offset really is the swap entry that tell us
where the page is been swapped out. And in such case page->offset is not
page aligned.

Andrea Arcangeli