Re: [PATCH] pretest pte_young and pte_dirty

From: David Mosberger
Date: Wed Jun 02 2004 - 15:34:38 EST


>>>>> On Wed, 2 Jun 2004 21:16:59 +0100 (BST), Hugh Dickins <hugh@xxxxxxxxxxx> said:

Hugh> Test for pte_young before going to the costlier atomic
Hugh> test_and_clear, as asm-generic does. Test for pte_dirty
Hugh> before going to the costlier atomic test_and_clear, as
Hugh> asm-generic does (I said before that I would not do so for
Hugh> pte_dirty, but was missing the point: there is nothing atomic
Hugh> about deciding to do nothing). But I've not touched the
Hugh> rather different ppc and ppc64.

The ia64-portion of the patch looks good to me.

Thanks!

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