On Wed, Nov 12, 2014 at 11:39:29AM +0800, Weijie Yang wrote: > When encounter pte is a swap entry, the current code handles two cases: > migration and normal swapentry, but we have a third case: hwpoison page. > > This patch adds hwpoison page handle, consider hwpoison page incore as > same as migration. > > Signed-off-by: Weijie Yang <weijie.yang@xxxxxxxxxxx> The change makes sense: Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx> But please add a description of what happens when a poison entry is encountered with the current code. I'm guessing swap_address_space() will return garbage and this might crash the kernel? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>