From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751308AbeECJxn (ORCPT ); Thu, 3 May 2018 05:53:43 -0400 Received: from mail-pg0-f67.google.com ([74.125.83.67]:44769 "EHLO mail-pg0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750969AbeECJxl (ORCPT ); Thu, 3 May 2018 05:53:41 -0400 X-Google-Smtp-Source: AB8JxZqpsiaXwE5e0QTCTmcAtSJWtTy7Q8UjledbPv6SYhIZ2mfOcDzeUKcdhTM8fe80619X4lSvaw== From: SeongJae Park To: axboe@kernel.dk Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, SeongJae Park Subject: [PATCH] brd: Mark as non-rotational Date: Thu, 3 May 2018 18:53:26 +0900 Message-Id: <20180503095326.7414-1-sj38.park@gmail.com> X-Mailer: git-send-email 2.13.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This commit sets QUEUE_FLAG_NONROT and clears up QUEUE_FLAG_ADD_RANDOM to mark the ramdisks as non-rotational device. Signed-off-by: SeongJae Park --- drivers/block/brd.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/block/brd.c b/drivers/block/brd.c index 66cb0f857f64..39c5b90cc187 100644 --- a/drivers/block/brd.c +++ b/drivers/block/brd.c @@ -402,6 +402,10 @@ static struct brd_device *brd_alloc(int i) set_capacity(disk, rd_size * 2); disk->queue->backing_dev_info->capabilities |= BDI_CAP_SYNCHRONOUS_IO; + /* Tell the block layer that this is not a rotational device */ + blk_queue_flag_set(QUEUE_FLAG_NONROT, disk->queue); + blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, disk->queue); + return brd; out_free_queue: -- 2.13.0