From patchwork Fri Mar 5 06:55:23 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jingbo Xu X-Patchwork-Id: 395121 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, UNPARSEABLE_RELAY, USER_AGENT_GIT 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 642BAC433DB for ; Fri, 5 Mar 2021 06:55:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3541A64FDF for ; Fri, 5 Mar 2021 06:55:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229488AbhCEGzc (ORCPT ); Fri, 5 Mar 2021 01:55:32 -0500 Received: from out30-56.freemail.mail.aliyun.com ([115.124.30.56]:34027 "EHLO out30-56.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229475AbhCEGzc (ORCPT ); Fri, 5 Mar 2021 01:55:32 -0500 X-Alimail-AntiSpam: AC=PASS; BC=-1|-1; BR=01201311R151e4; CH=green; DM=||false|; DS=||; FP=0|-1|-1|-1|0|-1|-1|-1; HT=e01e04395; MF=jefflexu@linux.alibaba.com; NM=1; PH=DS; RN=5; SR=0; TI=SMTPD_---0UQXT1za_1614927328; Received: from localhost(mailfrom:jefflexu@linux.alibaba.com fp:SMTPD_---0UQXT1za_1614927328) by smtp.aliyun-inc.com(127.0.0.1); Fri, 05 Mar 2021 14:55:29 +0800 From: Jeffle Xu To: gregkh@linuxfoundation.org, sashal@kernel.org Cc: stable@vger.kernel.org, jefflexu@linux.alibaba.com, snitzer@redhat.com Subject: [PATCH 4.19.y 2/5] dm table: fix no_sg_merge iterate_devices based device capability checks Date: Fri, 5 Mar 2021 14:55:23 +0800 Message-Id: <20210305065526.72663-3-jefflexu@linux.alibaba.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210305065526.72663-1-jefflexu@linux.alibaba.com> References: <1614606251118245@kroah.com> <20210305065526.72663-1-jefflexu@linux.alibaba.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org Similar to commit a4c8dd9c2d09 ("dm table: fix iterate_devices based device capability checks"), fix NO_SG_MERGE capability check and invert logic of the corresponding iterate_devices_callout_fn so that all devices' NO_SG_MERGE capabilities are properly checked. Signed-off-by: Jeffle Xu Fixes: 200612ec33e5 ("dm table: propagate QUEUE_FLAG_NO_SG_MERGE") --- drivers/md/dm-table.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index 686cc7c20113..5a94e6dc0b70 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -1764,12 +1764,12 @@ static int device_is_not_random(struct dm_target *ti, struct dm_dev *dev, return q && !blk_queue_add_random(q); } -static int queue_supports_sg_merge(struct dm_target *ti, struct dm_dev *dev, - sector_t start, sector_t len, void *data) +static int queue_no_sg_merge(struct dm_target *ti, struct dm_dev *dev, + sector_t start, sector_t len, void *data) { struct request_queue *q = bdev_get_queue(dev->bdev); - return q && !test_bit(QUEUE_FLAG_NO_SG_MERGE, &q->queue_flags); + return q && test_bit(QUEUE_FLAG_NO_SG_MERGE, &q->queue_flags); } static int device_no_partial_completion(struct dm_target *ti, struct dm_dev *dev, @@ -1960,10 +1960,10 @@ void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q, if (!dm_table_supports_write_zeroes(t)) q->limits.max_write_zeroes_sectors = 0; - if (dm_table_all_devices_attribute(t, queue_supports_sg_merge)) - blk_queue_flag_clear(QUEUE_FLAG_NO_SG_MERGE, q); - else + if (dm_table_any_dev_attr(t, queue_no_sg_merge)) blk_queue_flag_set(QUEUE_FLAG_NO_SG_MERGE, q); + else + blk_queue_flag_clear(QUEUE_FLAG_NO_SG_MERGE, q); dm_table_verify_integrity(t);