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[209.132.180.67]) by mx.google.com with ESMTP id o6si6703542pfi.109.2017.01.20.04.14.30; Fri, 20 Jan 2017 04:14:30 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752001AbdATMO2 (ORCPT + 25 others); Fri, 20 Jan 2017 07:14:28 -0500 Received: from szxga01-in.huawei.com ([58.251.152.64]:10660 "EHLO szxga01-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751907AbdATMO1 (ORCPT ); Fri, 20 Jan 2017 07:14:27 -0500 Received: from 172.24.1.137 (EHLO szxeml433-hub.china.huawei.com) ([172.24.1.137]) by szxrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id DYD97563; Fri, 20 Jan 2017 20:14:07 +0800 (CST) Received: from localhost.localdomain (10.67.212.75) by szxeml433-hub.china.huawei.com (10.82.67.210) with Microsoft SMTP Server id 14.3.235.1; Fri, 20 Jan 2017 20:13:58 +0800 From: John Garry To: , CC: , , , , , , , Xiang Chen , John Garry Subject: [PATCH v2 7/7] scsi: hisi_sas: decrease running_req in hisi_sas_slot_task_free() Date: Fri, 20 Jan 2017 20:45:24 +0800 Message-ID: <1484916324-211630-8-git-send-email-john.garry@huawei.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1484916324-211630-1-git-send-email-john.garry@huawei.com> References: <1484916324-211630-1-git-send-email-john.garry@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.67.212.75] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020206.5881FF10.00D9, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 764b2db3dcb129a3efd2a1dd2abb681a Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Xiang Chen There is an issue that hisi_sas_dev.running_req is not decremented properly for internal abort and TMF. To resolve, only decrease running_req in hisi_sas_slot_task_free() Signed-off-by: Xiang Chen Signed-off-by: John Garry Reviewed-by: Johannes Thumshirn --- drivers/scsi/hisi_sas/hisi_sas_main.c | 8 ++++---- drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 2 -- 2 files changed, 4 insertions(+), 6 deletions(-) -- 1.9.1 diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index 8601cec..53637a9 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -71,6 +71,8 @@ void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba, struct sas_task *task, struct hisi_sas_slot *slot) { struct device *dev = &hisi_hba->pdev->dev; + struct domain_device *device = task->dev; + struct hisi_sas_device *sas_dev = device->lldd_dev; if (!slot->task) return; @@ -97,6 +99,8 @@ void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba, struct sas_task *task, slot->task = NULL; slot->port = NULL; hisi_sas_slot_index_free(hisi_hba, slot->idx); + if (sas_dev) + atomic64_dec(&sas_dev->running_req); /* slot memory is fully zeroed when it is reused */ } EXPORT_SYMBOL_GPL(hisi_sas_slot_task_free); @@ -141,8 +145,6 @@ static void hisi_sas_slot_abort(struct work_struct *work) struct hisi_hba *hisi_hba = dev_to_hisi_hba(task->dev); struct scsi_cmnd *cmnd = task->uldd_task; struct hisi_sas_tmf_task tmf_task; - struct domain_device *device = task->dev; - struct hisi_sas_device *sas_dev = device->lldd_dev; struct scsi_lun lun; struct device *dev = &hisi_hba->pdev->dev; int tag = abort_slot->idx; @@ -165,8 +167,6 @@ static void hisi_sas_slot_abort(struct work_struct *work) spin_unlock_irqrestore(&hisi_hba->lock, flags); if (task->task_done) task->task_done(task); - if (sas_dev) - atomic64_dec(&sas_dev->running_req); } static int hisi_sas_task_prep(struct sas_task *task, struct hisi_hba *hisi_hba, diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c index 9e16f42..1b21445 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c @@ -1830,8 +1830,6 @@ static void slot_err_v2_hw(struct hisi_hba *hisi_hba, } out: - if (sas_dev) - atomic64_dec(&sas_dev->running_req); hisi_sas_slot_task_free(hisi_hba, task, slot); sts = ts->stat;