From patchwork Mon Dec 13 19:20:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Bogdanov X-Patchwork-Id: 595466 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A32BBC25B06 for ; Wed, 3 Aug 2022 16:29:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238325AbiHCQ35 (ORCPT ); Wed, 3 Aug 2022 12:29:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50718 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238341AbiHCQ3e (ORCPT ); Wed, 3 Aug 2022 12:29:34 -0400 Received: from mta-01.yadro.com (mta-02.yadro.com [89.207.88.252]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6AFD86437; Wed, 3 Aug 2022 09:29:27 -0700 (PDT) Received: from localhost (unknown [127.0.0.1]) by mta-01.yadro.com (Postfix) with ESMTP id 2075241301; Wed, 3 Aug 2022 16:29:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=yadro.com; h= content-type:content-type:content-transfer-encoding:mime-version :references:in-reply-to:x-mailer:message-id:date:date:subject :subject:from:from:received:received:received:received; s= mta-01; t=1659544164; x=1661358565; bh=up0BrvEsLm9+0/EKtwIjmwbdV 5hi3S99QmPqqfsgtwE=; b=o2wd1HWv06zkmYjJ7E8pena7Qkyg5+k7EHz0upieh BhqQ0sR2CQmame0R+wnIFGnUa+LmrobiO0+C6quojuQYzd7mcU8YfczzDyQIntTf dqvjOWx1a8eObfcqyQyPZCxcIw/Bl6Q+1cbNa9rCswk469F3dlz5n+c/EAeGRlCd ag= X-Virus-Scanned: amavisd-new at yadro.com Received: from mta-01.yadro.com ([127.0.0.1]) by localhost (mta-01.yadro.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id BfhN0CMC4GnL; Wed, 3 Aug 2022 19:29:24 +0300 (MSK) Received: from T-EXCH-02.corp.yadro.com (t-exch-02.corp.yadro.com [172.17.10.102]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mta-01.yadro.com (Postfix) with ESMTPS id 7CAED4127C; Wed, 3 Aug 2022 19:29:17 +0300 (MSK) Received: from T-EXCH-08.corp.yadro.com (172.17.11.58) by T-EXCH-02.corp.yadro.com (172.17.10.102) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id 15.1.669.32; Wed, 3 Aug 2022 19:29:17 +0300 Received: from NB-591.corp.yadro.com (10.199.18.20) by T-EXCH-08.corp.yadro.com (172.17.11.58) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.1118.9; Wed, 3 Aug 2022 19:29:16 +0300 From: Dmitry Bogdanov To: Martin Petersen , CC: , , Dmitry Bogdanov Subject: [RFC PATCH 20/48] target: core: proper check of SCSI-2 reservation Date: Mon, 13 Dec 2021 22:20:31 +0300 Message-ID: <20220803162857.27770-21-d.bogdanov@yadro.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220803162857.27770-1-d.bogdanov@yadro.com> References: <20220803162857.27770-1-d.bogdanov@yadro.com> MIME-Version: 1.0 X-Originating-IP: [10.199.18.20] X-ClientProxiedBy: T-EXCH-01.corp.yadro.com (172.17.10.101) To T-EXCH-08.corp.yadro.com (172.17.11.58) Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Use a check of the flag instead of session pointer like in other places. Signed-off-by: Dmitry Bogdanov --- drivers/target/target_core_configfs.c | 17 +++++++++++------ drivers/target/target_core_pr.c | 6 +++--- 2 files changed, 14 insertions(+), 9 deletions(-) diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index 6e654edc4399..34901f0b2350 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -1756,12 +1756,17 @@ static ssize_t target_core_dev_pr_show_spc2_res(struct se_device *dev, struct se_node_acl *se_nacl; ssize_t len; - if (sess) { - se_nacl = sess->se_node_acl; - len = sprintf(page, - "SPC-2 Reservation: %s Initiator: %s\n", - se_nacl->se_tpg->se_tpg_tfo->fabric_name, - se_nacl->initiatorname); + if (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS) { + if (sess) { + se_nacl = sess->se_node_acl; + len = sprintf(page, + "SPC-2 Reservation: %s Initiator: %s\n", + se_nacl->se_tpg->se_tpg_tfo->fabric_name, + se_nacl->initiatorname); + } else { + len = sprintf(page, + "SPC-2 Reservation: peer node\n"); + } } else { len = sprintf(page, "No SPC-2 Reservation holder\n"); } diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c index 4bb16de29a1e..2f4c65d5d766 100644 --- a/drivers/target/target_core_pr.c +++ b/drivers/target/target_core_pr.c @@ -208,7 +208,7 @@ target_scsi2_reservation_release(struct se_cmd *cmd) return TCM_RESERVATION_CONFLICT; spin_lock(&dev->dev_reservation_lock); - if (!dev->reservation_holder) + if (!(dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS)) goto out_unlock; if (dev->reservation_holder->se_node_acl != sess->se_node_acl) @@ -261,8 +261,8 @@ target_scsi2_reservation_reserve(struct se_cmd *cmd) tpg = sess->se_tpg; spin_lock(&dev->dev_reservation_lock); - if (dev->reservation_holder && - dev->reservation_holder->se_node_acl != sess->se_node_acl) { + if ((dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS) && + dev->reservation_holder->se_node_acl != sess->se_node_acl) { pr_err("SCSI-2 RESERVATION CONFLICT for %s fabric\n", tpg->se_tpg_tfo->fabric_name); pr_err("Original reserver LUN: %llu %s\n",