Currently SLUB doesn't warn about __GFP_WAIT. Add it into slab_alloc().
Acked-by: NChristoph Lameter <cl@linux-foundation.org>
Signed-off-by: NOGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi>