Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752692AbaDQPu1 (ORCPT ); Thu, 17 Apr 2014 11:50:27 -0400 Received: from mail-pb0-f49.google.com ([209.85.160.49]:43836 "EHLO mail-pb0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752495AbaDQPuH (ORCPT ); Thu, 17 Apr 2014 11:50:07 -0400 From: Ming Lei To: Jens Axboe , linux-kernel@vger.kernel.org Cc: Christoph Hellwig , Ming Lei Subject: [PATCH next 3/4] blk-mq: user (1 << order) to implement order_to_size() Date: Thu, 17 Apr 2014 23:49:37 +0800 Message-Id: <1397749778-14485-4-git-send-email-tom.leiming@gmail.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1397749778-14485-1-git-send-email-tom.leiming@gmail.com> References: <1397749778-14485-1-git-send-email-tom.leiming@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Ming Lei --- block/blk-mq.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/block/blk-mq.c b/block/blk-mq.c index baff2d0..1eff3d9 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -1130,12 +1130,7 @@ static void blk_mq_free_rq_map(struct blk_mq_tag_set *set, static size_t order_to_size(unsigned int order) { - size_t ret = PAGE_SIZE; - - while (order--) - ret *= 2; - - return ret; + return (1 << order) * PAGE_SIZE; } static struct blk_mq_tags *blk_mq_init_rq_map(struct blk_mq_tag_set *set, -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/