>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
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/