From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CC1DAC352A4 for ; Mon, 10 Feb 2020 09:34:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id ABB00214DB for ; Mon, 10 Feb 2020 09:34:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727079AbgBJJeX (ORCPT ); Mon, 10 Feb 2020 04:34:23 -0500 Received: from relay.sw.ru ([185.231.240.75]:59474 "EHLO relay.sw.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727434AbgBJJeM (ORCPT ); Mon, 10 Feb 2020 04:34:12 -0500 Received: from dhcp-172-16-24-104.sw.ru ([172.16.24.104] helo=localhost.localdomain) by relay.sw.ru with esmtp (Exim 4.92.3) (envelope-from ) id 1j15S2-0000Jm-OM; Mon, 10 Feb 2020 12:33:58 +0300 Subject: [PATCH v6 5/6] block: Add blk_queue_max_allocate_sectors() From: Kirill Tkhai To: martin.petersen@oracle.com, bob.liu@oracle.com, axboe@kernel.dk Cc: agk@redhat.com, snitzer@redhat.com, dm-devel@redhat.com, song@kernel.org, tytso@mit.edu, adilger.kernel@dilger.ca, Chaitanya.Kulkarni@wdc.com, darrick.wong@oracle.com, ming.lei@redhat.com, osandov@fb.com, jthumshirn@suse.de, minwoo.im.dev@gmail.com, damien.lemoal@wdc.com, andrea.parri@amarulasolutions.com, hare@suse.com, tj@kernel.org, ajay.joshi@wdc.com, sagi@grimberg.me, dsterba@suse.com, chaitanya.kulkarni@wdc.com, bvanassche@acm.org, dhowells@redhat.com, asml.silence@gmail.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, ktkhai@virtuozzo.com Date: Mon, 10 Feb 2020 12:33:58 +0300 Message-ID: <158132723860.239613.17590551491822950307.stgit@localhost.localdomain> In-Reply-To: <158132703141.239613.3550455492676290009.stgit@localhost.localdomain> References: <158132703141.239613.3550455492676290009.stgit@localhost.localdomain> User-Agent: StGit/0.19 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org This is a new helper to assign max_allocate_sectors limit of block device queue. Signed-off-by: Kirill Tkhai Reviewed-by: Bob Liu --- block/blk-settings.c | 13 +++++++++++++ include/linux/blkdev.h | 2 ++ 2 files changed, 15 insertions(+) diff --git a/block/blk-settings.c b/block/blk-settings.c index 8d5df9d37239..24cf8fbbd125 100644 --- a/block/blk-settings.c +++ b/block/blk-settings.c @@ -259,6 +259,19 @@ void blk_queue_max_write_zeroes_sectors(struct request_queue *q, } EXPORT_SYMBOL(blk_queue_max_write_zeroes_sectors); +/** + * blk_queue_max_allocate_sectors - set max sectors for a single + * allocate request + * @q: the request queue for the device + * @max_allocate_sectors: maximum number of sectors to write per command + **/ +void blk_queue_max_allocate_sectors(struct request_queue *q, + unsigned int max_allocate_sectors) +{ + q->limits.max_allocate_sectors = max_allocate_sectors; +} +EXPORT_SYMBOL(blk_queue_max_allocate_sectors); + /** * blk_queue_max_segments - set max hw segments for a request for this queue * @q: the request queue for the device diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 40707f980a2e..f5edbfea7b84 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1088,6 +1088,8 @@ extern void blk_queue_max_write_same_sectors(struct request_queue *q, unsigned int max_write_same_sectors); extern void blk_queue_max_write_zeroes_sectors(struct request_queue *q, unsigned int max_write_same_sectors); +extern void blk_queue_max_allocate_sectors(struct request_queue *q, + unsigned int max_allocate_sectors); extern void blk_queue_logical_block_size(struct request_queue *, unsigned int); extern void blk_queue_physical_block_size(struct request_queue *, unsigned int); extern void blk_queue_alignment_offset(struct request_queue *q,