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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,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 22F36CA9EAF for ; Mon, 21 Oct 2019 16:26:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F41FA205ED for ; Mon, 21 Oct 2019 16:26:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730093AbfJUQ0h (ORCPT ); Mon, 21 Oct 2019 12:26:37 -0400 Received: from szxga06-in.huawei.com ([45.249.212.32]:33126 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728292AbfJUQZ1 (ORCPT ); Mon, 21 Oct 2019 12:25:27 -0400 Received: from DGGEMS402-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 0583C20F66B56A14DC87; Tue, 22 Oct 2019 00:25:25 +0800 (CST) Received: from localhost.localdomain (10.69.192.58) by DGGEMS402-HUB.china.huawei.com (10.3.19.202) with Microsoft SMTP Server id 14.3.439.0; Tue, 22 Oct 2019 00:25:18 +0800 From: John Garry To: , CC: , , , Luo Jiaxing , "John Garry" Subject: [PATCH 05/18] scsi: hisi_sas: Add timestamp for a debugfs dump Date: Tue, 22 Oct 2019 00:22:02 +0800 Message-ID: <1571674935-108326-6-git-send-email-john.garry@huawei.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1571674935-108326-1-git-send-email-john.garry@huawei.com> References: <1571674935-108326-1-git-send-email-john.garry@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.69.192.58] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Luo Jiaxing It's useful to know when the dump occurred, so add a timestamp file for this. Signed-off-by: Luo Jiaxing Signed-off-by: John Garry --- drivers/scsi/hisi_sas/hisi_sas.h | 2 ++ drivers/scsi/hisi_sas/hisi_sas_main.c | 7 +++++++ 2 files changed, 9 insertions(+) diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h index 83232e8472fb..7069dae4cec9 100644 --- a/drivers/scsi/hisi_sas/hisi_sas.h +++ b/drivers/scsi/hisi_sas/hisi_sas.h @@ -21,6 +21,7 @@ #include #include #include +#include #include #include @@ -410,6 +411,7 @@ struct hisi_hba { struct hisi_sas_iost *debugfs_iost; struct hisi_sas_itct *debugfs_itct; u64 *debugfs_iost_cache; + u64 debugfs_timestamp; u64 *debugfs_itct_cache; struct dentry *debugfs_dir; diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index a7bac5dc389a..a983d08c03aa 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -3194,6 +3194,7 @@ static const struct file_operations hisi_sas_debugfs_itct_cache_fops = { static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba) { + u64 *debugfs_timestamp; struct dentry *dump_dentry; struct dentry *dentry; char name[256]; @@ -3201,10 +3202,14 @@ static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba) int c; int d; + debugfs_timestamp = &hisi_hba->debugfs_timestamp; /* Create dump dir inside device dir */ dump_dentry = debugfs_create_dir("dump", hisi_hba->debugfs_dir); hisi_hba->debugfs_dump_dentry = dump_dentry; + debugfs_create_u64("timestamp", 0400, dump_dentry, + debugfs_timestamp); + debugfs_create_file("global", 0400, dump_dentry, hisi_hba, &hisi_sas_debugfs_global_fops); @@ -3684,7 +3689,9 @@ void hisi_sas_debugfs_work_handler(struct work_struct *work) { struct hisi_hba *hisi_hba = container_of(work, struct hisi_hba, debugfs_work); + u64 timestamp = local_clock() / NSEC_PER_MSEC; + hisi_hba->debugfs_timestamp = timestamp; if (hisi_hba->debugfs_snapshot) return; hisi_hba->debugfs_snapshot = true; -- 2.17.1