From patchwork Wed Sep 7 13:58:48 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Bogdanov X-Patchwork-Id: 12969005 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 9319CC6FA8A for ; Wed, 7 Sep 2022 13:59:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229931AbiIGN7W (ORCPT ); Wed, 7 Sep 2022 09:59:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46144 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229706AbiIGN7V (ORCPT ); Wed, 7 Sep 2022 09:59:21 -0400 Received: from mta-01.yadro.com (mta-02.yadro.com [89.207.88.252]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 43AA1AF49B; Wed, 7 Sep 2022 06:59:20 -0700 (PDT) Received: from localhost (unknown [127.0.0.1]) by mta-01.yadro.com (Postfix) with ESMTP id 8E36243EDA; Wed, 7 Sep 2022 13:59:18 +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=1662559157; x=1664373558; bh=JJeh0qtc2HaUVz6jk1HEDo9kg 20v1765a/LrEFyH9rE=; b=L4h25cuYCVsS28TGlRRMqWb/kKNC+EWzWIk4t1fzD W3S3o4NjKOJ3y9iQbdXhORydGf1zuDoA4vaSuQC0+U7dB1+t21Ld7RRutpnLCnVz cxAdSGIahA0QoDXw+X7J/JbMysvNHlU9ivIfJAQB5JUHjQM9ar2PjYn6Lua7kMV4 gc= 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 cBAYvO9XOWA8; Wed, 7 Sep 2022 16:59:17 +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 74A1D4471D; Wed, 7 Sep 2022 16:59:05 +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, 7 Sep 2022 16:59:04 +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, 7 Sep 2022 16:59:03 +0300 From: Dmitry Bogdanov To: Martin Petersen , CC: , , Dmitry Bogdanov Subject: [PATCH 1/4] target: core: fix preempt and abort for allreg res Date: Wed, 7 Sep 2022 16:58:48 +0300 Message-ID: <20220907135851.3756-2-d.bogdanov@yadro.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220907135851.3756-1-d.bogdanov@yadro.com> References: <20220907135851.3756-1-d.bogdanov@yadro.com> MIME-Version: 1.0 X-Originating-IP: [10.199.18.20] X-ClientProxiedBy: T-EXCH-02.corp.yadro.com (172.17.10.102) To T-EXCH-08.corp.yadro.com (172.17.11.58) Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Match a key only if SARK is not zero according to SPC-4 and the comment above the code: If an all registrants persistent reservation is present and the SERVICE ACTION RESERVATION KEY field is set to zero, then all registrations shall be removed except for that of the I_T nexus that is being used for the PERSISTENT RESERVE OUT command; Without this patch in case of SARK==0 no registrants will be removed. Signed-off-by: Dmitry Bogdanov --- drivers/target/target_core_pr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c index a1d67554709f..738ee7137462 100644 --- a/drivers/target/target_core_pr.c +++ b/drivers/target/target_core_pr.c @@ -3022,7 +3022,7 @@ core_scsi3_pro_preempt(struct se_cmd *cmd, int type, int scope, u64 res_key, if (calling_it_nexus) continue; - if (pr_reg->pr_res_key != sa_res_key) + if ((sa_res_key) && (pr_reg->pr_res_key != sa_res_key)) continue; pr_reg_nacl = pr_reg->pr_reg_nacl; From patchwork Wed Sep 7 13:58:49 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Bogdanov X-Patchwork-Id: 12969007 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 47465C6FA86 for ; Wed, 7 Sep 2022 13:59:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230012AbiIGN7c (ORCPT ); Wed, 7 Sep 2022 09:59:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46434 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229932AbiIGN7X (ORCPT ); Wed, 7 Sep 2022 09:59:23 -0400 Received: from mta-01.yadro.com (mta-02.yadro.com [89.207.88.252]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E0B9AAE9D7; Wed, 7 Sep 2022 06:59:20 -0700 (PDT) Received: from localhost (unknown [127.0.0.1]) by mta-01.yadro.com (Postfix) with ESMTP id 710E1448D0; Wed, 7 Sep 2022 13:59:19 +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=1662559158; x=1664373559; bh=WJoBdbJCs8kiVPAxwZtmevn+w TSMmW6If4jO0R4uAiY=; b=ZgsBCvHnVhGQl7I33ChvZE/9YB15YCeJnmtQr+gOr kT0mYX/x9IWJBJuJjN8Q3XdxzXIxnQP61/CdQHdst+jU++jHWE6Lo9zqxSaLN6S4 5LmFL5TglEzrBjlUkLGaDBTNv8g6fChXqszWGEdPztqI/9TKzc76J/GBxtMVuxyI 4k= 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 jPVyxQcLykco; Wed, 7 Sep 2022 16:59:18 +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 7947144B78; Wed, 7 Sep 2022 16:59:05 +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, 7 Sep 2022 16:59:05 +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, 7 Sep 2022 16:59:04 +0300 From: Dmitry Bogdanov To: Martin Petersen , CC: , , Dmitry Bogdanov Subject: [PATCH 2/4] target: core: fix memory leak in preempt_and_abort Date: Wed, 7 Sep 2022 16:58:49 +0300 Message-ID: <20220907135851.3756-3-d.bogdanov@yadro.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220907135851.3756-1-d.bogdanov@yadro.com> References: <20220907135851.3756-1-d.bogdanov@yadro.com> MIME-Version: 1.0 X-Originating-IP: [10.199.18.20] X-ClientProxiedBy: T-EXCH-02.corp.yadro.com (172.17.10.102) To T-EXCH-08.corp.yadro.com (172.17.11.58) Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Always release preempt_and_abort_list to avoid memory leak of t10_pr_registration objects in it. Signed-off-by: Dmitry Bogdanov --- drivers/target/target_core_pr.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c index 738ee7137462..24441427f7b4 100644 --- a/drivers/target/target_core_pr.c +++ b/drivers/target/target_core_pr.c @@ -2956,13 +2956,14 @@ core_scsi3_pro_preempt(struct se_cmd *cmd, int type, int scope, u64 res_key, __core_scsi3_complete_pro_preempt(dev, pr_reg_n, (preempt_type == PREEMPT_AND_ABORT) ? &preempt_and_abort_list : NULL, type, scope, preempt_type); - - if (preempt_type == PREEMPT_AND_ABORT) - core_scsi3_release_preempt_and_abort( - &preempt_and_abort_list, pr_reg_n); } + spin_unlock(&dev->dev_reservation_lock); + if (preempt_type == PREEMPT_AND_ABORT) + core_scsi3_release_preempt_and_abort( + &preempt_and_abort_list, pr_reg_n); + if (pr_tmpl->pr_aptpl_active) core_scsi3_update_and_write_aptpl(cmd->se_dev, true); From patchwork Wed Sep 7 13:58:50 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Bogdanov X-Patchwork-Id: 12969006 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 20817C38145 for ; Wed, 7 Sep 2022 13:59:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229977AbiIGN7Y (ORCPT ); Wed, 7 Sep 2022 09:59:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46436 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229959AbiIGN7X (ORCPT ); Wed, 7 Sep 2022 09:59:23 -0400 Received: from mta-01.yadro.com (mta-02.yadro.com [89.207.88.252]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 986901E4; Wed, 7 Sep 2022 06:59:21 -0700 (PDT) Received: from localhost (unknown [127.0.0.1]) by mta-01.yadro.com (Postfix) with ESMTP id 2D378449EB; Wed, 7 Sep 2022 13:59:20 +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=1662559158; x=1664373559; bh=NACBRGOBKNfBOlEOSW6Y/1DW8 0zCFu2n39YFudlLjrI=; b=mHcBhMWvHu1bNU9qTUk9M5vsFSPawL1mc77u1pAus G5uco1dx1r1e6blnywaBzsv5Otfu/Wn0RDrKCw/K89pbFQ0K/eHuX8fW4o2Emxz6 cq+tI27ebSXKBLpW9fosxFNCSnltCmSlEUrp2AVCjMGYZlffCpfmNfi8rE+AXeP0 mk= 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 bSPN0w-zXzQC; Wed, 7 Sep 2022 16:59:18 +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 7FD4846DAF; Wed, 7 Sep 2022 16:59:05 +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, 7 Sep 2022 16:59:05 +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, 7 Sep 2022 16:59:04 +0300 From: Dmitry Bogdanov To: Martin Petersen , CC: , , Dmitry Bogdanov Subject: [PATCH 3/4] target: core: abort all preempted regs if requested Date: Wed, 7 Sep 2022 16:58:50 +0300 Message-ID: <20220907135851.3756-4-d.bogdanov@yadro.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220907135851.3756-1-d.bogdanov@yadro.com> References: <20220907135851.3756-1-d.bogdanov@yadro.com> MIME-Version: 1.0 X-Originating-IP: [10.199.18.20] X-ClientProxiedBy: T-EXCH-02.corp.yadro.com (172.17.10.102) To T-EXCH-08.corp.yadro.com (172.17.11.58) Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org According to SPC the preempted commands shall be always aborted. SPC-4: 5.12.11.2.6 Preempting and aborting c) all commands from the I_T nexus(es) associated with the persistent reservations or registrations being preempted (i.e., preempted commands) except the PERSISTENT RESERVE OUT command itself shall be aborted as defined in SAM-5; Signed-off-by: Dmitry Bogdanov --- drivers/target/target_core_pr.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c index 24441427f7b4..8c83c5530536 100644 --- a/drivers/target/target_core_pr.c +++ b/drivers/target/target_core_pr.c @@ -2960,9 +2960,23 @@ core_scsi3_pro_preempt(struct se_cmd *cmd, int type, int scope, u64 res_key, spin_unlock(&dev->dev_reservation_lock); - if (preempt_type == PREEMPT_AND_ABORT) + /* + * SPC-4 5.12.11.2.6 Preempting and aborting + * The actions described in this subclause shall be performed + * for all I_T nexuses that are registered with the non-zero + * SERVICE ACTION RESERVATION KEY value, without regard for + * whether the preempted I_T nexuses hold the persistent + * reservation. If the SERVICE ACTION RESERVATION KEY field is + * set to zero and an all registrants persistent reservation is + * present, the device server shall abort all commands for all + * registered I_T nexuses. + */ + if (preempt_type == PREEMPT_AND_ABORT) { + core_tmr_lun_reset(dev, NULL, &preempt_and_abort_list, + cmd); core_scsi3_release_preempt_and_abort( &preempt_and_abort_list, pr_reg_n); + } if (pr_tmpl->pr_aptpl_active) core_scsi3_update_and_write_aptpl(cmd->se_dev, true); From patchwork Wed Sep 7 13:58:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Bogdanov X-Patchwork-Id: 12969008 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 96870C6FA89 for ; Wed, 7 Sep 2022 13:59:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229982AbiIGN7d (ORCPT ); Wed, 7 Sep 2022 09:59:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46764 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229706AbiIGN73 (ORCPT ); Wed, 7 Sep 2022 09:59:29 -0400 Received: from mta-01.yadro.com (mta-02.yadro.com [89.207.88.252]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 217C0319; Wed, 7 Sep 2022 06:59:22 -0700 (PDT) Received: from localhost (unknown [127.0.0.1]) by mta-01.yadro.com (Postfix) with ESMTP id 0768E445A5; Wed, 7 Sep 2022 13:59:21 +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=1662559159; x=1664373560; bh=KKfhBzB4M8nL3qeVorAlXcWtz DieHqC2/n754Ez+k7U=; b=PaOIY4r9p9/RnVoEhzZRZQhUHhM56Lr+i/beitVPs YOlHEncrKaXsvw77k2pB3Kbl6ygYRbY32gqifGLvD9Fc9aSDMnp4LEsDKZuWbfGV uiTh+iC7z37npGezdLL2L6nNlBXdIqQxFxOhKdL/9I4SNcp9Z4xM8E6Aq3ox/l0S AQ= 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 KK-mSYAsuiwX; Wed, 7 Sep 2022 16:59:19 +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 C265346DB5; Wed, 7 Sep 2022 16:59:05 +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, 7 Sep 2022 16:59:05 +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, 7 Sep 2022 16:59:05 +0300 From: Dmitry Bogdanov To: Martin Petersen , CC: , , Dmitry Bogdanov Subject: [PATCH 4/4] target: core: new key must be used for moved PR Date: Wed, 7 Sep 2022 16:58:51 +0300 Message-ID: <20220907135851.3756-5-d.bogdanov@yadro.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220907135851.3756-1-d.bogdanov@yadro.com> References: <20220907135851.3756-1-d.bogdanov@yadro.com> MIME-Version: 1.0 X-Originating-IP: [10.199.18.20] X-ClientProxiedBy: T-EXCH-02.corp.yadro.com (172.17.10.102) To T-EXCH-08.corp.yadro.com (172.17.11.58) Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org According to SPC4 5.12.8: e) Retain the reservation key specified in the SERVICE ACTION RESERVATION KEY field and associated information; But currently sa_res_key is only used for the not existing I_T nexus. The patch adds an updating of the key for the existing I_T nexus the PR moved to. Signed-off-by: Dmitry Bogdanov --- drivers/target/target_core_pr.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c index 8c83c5530536..fc7b2e2c17a5 100644 --- a/drivers/target/target_core_pr.c +++ b/drivers/target/target_core_pr.c @@ -3440,8 +3440,6 @@ core_scsi3_emulate_pro_register_and_move(struct se_cmd *cmd, u64 res_key, * transport protocols where port names are not required; * d) Register the reservation key specified in the SERVICE ACTION * RESERVATION KEY field; - * e) Retain the reservation key specified in the SERVICE ACTION - * RESERVATION KEY field and associated information; * * Also, It is not an error for a REGISTER AND MOVE service action to * register an I_T nexus that is already registered with the same @@ -3463,6 +3461,12 @@ core_scsi3_emulate_pro_register_and_move(struct se_cmd *cmd, u64 res_key, dest_pr_reg = __core_scsi3_locate_pr_reg(dev, dest_node_acl, iport_ptr); new_reg = 1; + } else { + /* + * e) Retain the reservation key specified in the SERVICE ACTION + * RESERVATION KEY field and associated information; + */ + dest_pr_reg->pr_res_key = sa_res_key; } /* * f) Release the persistent reservation for the persistent reservation