Documentation: rename addr_in_gen_pool to gen_pool_has_addr Update the document, since we have renamed addr_in_gen_pool to gen_pool_has_addr. Link: http://lkml.kernel.org/r/20181229015914.5573-1-sjhuang@iluvatar.ai Signed-off-by: Huang Shijie <sjhuang@iluvatar.ai> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>