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=-9.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,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 3B9B1C35280 for ; Wed, 2 Oct 2019 04:14:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 02862206A3 for ; Wed, 2 Oct 2019 04:14:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="jZgfm+22" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726411AbfJBEON (ORCPT ); Wed, 2 Oct 2019 00:14:13 -0400 Received: from userp2130.oracle.com ([156.151.31.86]:52616 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725799AbfJBEOM (ORCPT ); Wed, 2 Oct 2019 00:14:12 -0400 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x924EBbt193107 for ; Wed, 2 Oct 2019 04:14:11 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : subject : date : message-id; s=corp-2019-08-05; bh=rtdR+P7aZBrhf0ZjthW5qMGEisM4ag2dhvnunshkdUU=; b=jZgfm+22mwpt8lJtPUu+HgrqpvUZlVG6jxNfJCp9GIVJX7b/nkF54uKBYEjzcQbsvfIz mrMPfl8kvvFmCzDC7gfRNmWvyrzuaWIAHLtJt8OROXAt4FJswk5YDEAL5cxJPyf6kYar gbJb6MEy+6pCRC8PXxS1wbQjoCq8k6QHAF8yiPVhK0zi3D2GzJEhxzq6Dhm9QgDlc+Cy vfUoY1Qm7xI0yayMMraXBJhgXiPmpRZw6RU67ZVXUr0lmyM7pATrP2YmSVmOsWJHmA0H rPpOagJIn1h2eRPnQGEeoM4drQsj9EPrUhKTdXDxKpYvt2PGljgNPgNPSRSlz8dHIoO1 zw== Received: from userp3030.oracle.com (userp3030.oracle.com [156.151.31.80]) by userp2130.oracle.com with ESMTP id 2v9xxutg7k-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Wed, 02 Oct 2019 04:14:10 +0000 Received: from pps.filterd (userp3030.oracle.com [127.0.0.1]) by userp3030.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x9248c8s061085 for ; Wed, 2 Oct 2019 04:12:07 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by userp3030.oracle.com with ESMTP id 2vcg60f3s2-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Wed, 02 Oct 2019 04:12:07 +0000 Received: from abhmp0015.oracle.com (abhmp0015.oracle.com [141.146.116.21]) by userv0122.oracle.com (8.14.4/8.14.4) with ESMTP id x924C6I4022440 for ; Wed, 2 Oct 2019 04:12:06 GMT Received: from tp.wifi.oracle.com (/192.188.170.104) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 01 Oct 2019 21:12:06 -0700 From: Anand Jain To: linux-btrfs@vger.kernel.org Subject: [PATCH v3] btrfs-progs: add verbose option to btrfs device scan Date: Wed, 2 Oct 2019 12:11:52 +0800 Message-Id: <1569989512-5594-1-git-send-email-anand.jain@oracle.com> X-Mailer: git-send-email 1.8.3.1 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9397 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=3 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1908290000 definitions=main-1910020036 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9397 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=3 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1908290000 definitions=main-1910020037 Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org To help debug device scan issues, add verbose option to btrfs device scan. Signed-off-by: Anand Jain Tested-by: Graham Cobb --- v3: Add --verbose long option and update documentation. Thanks Graham.A Add Tested-by. v2: Use bool instead of int as a btrfs_scan_device() argument. Documentation/btrfs-device.asciidoc | 2 ++ cmds/device.c | 9 +++++++-- cmds/filesystem.c | 2 +- common/device-scan.c | 4 +++- common/device-scan.h | 3 ++- common/utils.c | 2 +- disk-io.c | 2 +- 7 files changed, 17 insertions(+), 7 deletions(-) diff --git a/Documentation/btrfs-device.asciidoc b/Documentation/btrfs-device.asciidoc index 70ce6c5a97f8..a251be9e0fa2 100644 --- a/Documentation/btrfs-device.asciidoc +++ b/Documentation/btrfs-device.asciidoc @@ -120,6 +120,8 @@ available. -u|--forget:::: Unregister a given device or all stale devices if no path is given, the device must be unmounted otherwise it's an error. +-v|--verbose:::: +Be verbose and list the devices scanned. *stats* [options] |:: Read and print the device IO error statistics for all devices of the given diff --git a/cmds/device.c b/cmds/device.c index 24158308a41b..655b97d83cb7 100644 --- a/cmds/device.c +++ b/cmds/device.c @@ -313,6 +313,7 @@ static int cmd_device_scan(const struct cmd_struct *cmd, int argc, char **argv) int all = 0; int ret = 0; int forget = 0; + bool verbose = false; optind = 0; while (1) { @@ -320,10 +321,11 @@ static int cmd_device_scan(const struct cmd_struct *cmd, int argc, char **argv) static const struct option long_options[] = { { "all-devices", no_argument, NULL, 'd'}, { "forget", no_argument, NULL, 'u'}, + { "verbose", no_argument, NULL, 'v'}, { NULL, 0, NULL, 0} }; - c = getopt_long(argc, argv, "du", long_options, NULL); + c = getopt_long(argc, argv, "duv", long_options, NULL); if (c < 0) break; switch (c) { @@ -333,6 +335,9 @@ static int cmd_device_scan(const struct cmd_struct *cmd, int argc, char **argv) case 'u': forget = 1; break; + case 'v': + verbose = true; + break; default: usage_unknown_option(cmd, argv); } @@ -354,7 +359,7 @@ static int cmd_device_scan(const struct cmd_struct *cmd, int argc, char **argv) } } else { printf("Scanning for Btrfs filesystems\n"); - ret = btrfs_scan_devices(); + ret = btrfs_scan_devices(verbose); error_on(ret, "error %d while scanning", ret); ret = btrfs_register_all_devices(); error_on(ret, diff --git a/cmds/filesystem.c b/cmds/filesystem.c index 4f22089abeaa..02d47a43a792 100644 --- a/cmds/filesystem.c +++ b/cmds/filesystem.c @@ -746,7 +746,7 @@ devs_only: else ret = 1; } else { - ret = btrfs_scan_devices(); + ret = btrfs_scan_devices(false); } if (ret) { diff --git a/common/device-scan.c b/common/device-scan.c index 48dbd9e19715..a500edf0f7d7 100644 --- a/common/device-scan.c +++ b/common/device-scan.c @@ -360,7 +360,7 @@ void free_seen_fsid(struct seen_fsid *seen_fsid_hash[]) } } -int btrfs_scan_devices(void) +int btrfs_scan_devices(bool verbose) { int fd = -1; int ret; @@ -389,6 +389,8 @@ int btrfs_scan_devices(void) continue; /* if we are here its definitely a btrfs disk*/ strncpy_null(path, blkid_dev_devname(dev)); + if (verbose) + printf("blkid: btrfs device: %s\n", path); fd = open(path, O_RDONLY); if (fd < 0) { diff --git a/common/device-scan.h b/common/device-scan.h index eda2bae5c6c4..3e473c48d1af 100644 --- a/common/device-scan.h +++ b/common/device-scan.h @@ -1,6 +1,7 @@ #ifndef __DEVICE_SCAN_H__ #define __DEVICE_SCAN_H__ +#include #include "kerncompat.h" #include "ioctl.h" @@ -29,7 +30,7 @@ struct seen_fsid { int fd; }; -int btrfs_scan_devices(void); +int btrfs_scan_devices(bool verbose); int btrfs_register_one_device(const char *fname); int btrfs_register_all_devices(void); int btrfs_add_to_fsid(struct btrfs_trans_handle *trans, diff --git a/common/utils.c b/common/utils.c index 6617b3ef38b1..9027de596f5d 100644 --- a/common/utils.c +++ b/common/utils.c @@ -277,7 +277,7 @@ int check_mounted_where(int fd, const char *file, char *where, int size, /* scan other devices */ if (is_btrfs && total_devs > 1) { - ret = btrfs_scan_devices(); + ret = btrfs_scan_devices(false); if (ret) return ret; } diff --git a/disk-io.c b/disk-io.c index fa679133e171..58861ccfb4ec 100644 --- a/disk-io.c +++ b/disk-io.c @@ -1096,7 +1096,7 @@ int btrfs_scan_fs_devices(int fd, const char *path, } if (!skip_devices && total_devs != 1) { - ret = btrfs_scan_devices(); + ret = btrfs_scan_devices(false); if (ret) return ret; } -- 1.8.3.1