On Wed, Dec 10, 2014 at 6:30 PM, Christoph Lameter <cl@xxxxxxxxx> wrote: > Ending a list with NULL means that the termination of a list is the same > for all slab pages. The pointers of freelists otherwise always are > pointing to the address space of the page. Make termination of a > list possible by setting the lowest bit in the freelist address > and use the start address of a page if no other address is available > for list termination. > > This will allow us to determine the page struct address from a > freelist pointer in the future. > > Signed-off-by: Christoph Lameter <cl@xxxxxxxxx> Reviewed-by: Pekka Enberg <penberg@xxxxxxxxxx> -- 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>