Christoph Lameter <cl@xxxxxxxxx> writes: > On Fri, 29 Jul 2011, Pekka Enberg wrote: > >> We haven't come up with a solution to keep struct page size the same but I >> think it's a reasonable trade-off. > > The change requires the page struct to be aligned to a double word > boundary. Why is that? > There is actually no variable added to the page struct. Its just > the alignment requirement that causes padding to be added after each page > struct. These days with everyone using cgroups (and likely mcgroups too) you could probably put the cgroups page pointer back there. It's currently external. -Andi -- ak@xxxxxxxxxxxxxxx -- Speaking for myself only -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>