From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from userp2130.oracle.com ([156.151.31.86]:42050 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753855AbeBVN6n (ORCPT ); Thu, 22 Feb 2018 08:58:43 -0500 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.22/8.16.0.22) with SMTP id w1MDuhWp065934 for ; Thu, 22 Feb 2018 13:58:42 GMT Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by userp2130.oracle.com with ESMTP id 2g9wsh0cs4-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Thu, 22 Feb 2018 13:58:42 +0000 Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by userv0021.oracle.com (8.14.4/8.14.4) with ESMTP id w1MDwgFG020034 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Thu, 22 Feb 2018 13:58:42 GMT Received: from abhmp0014.oracle.com (abhmp0014.oracle.com [141.146.116.20]) by userv0122.oracle.com (8.14.4/8.14.4) with ESMTP id w1MDwgSQ026457 for ; Thu, 22 Feb 2018 13:58:42 GMT From: Anand Jain To: linux-btrfs@vger.kernel.org Subject: [PATCH] btrfs-progs: dump-tree: add degraded option Date: Thu, 22 Feb 2018 22:00:11 +0800 Message-Id: <20180222140011.32713-1-anand.jain@oracle.com> Sender: linux-btrfs-owner@vger.kernel.org List-ID: btrfs inspect dump-tree cli picks the disk with the largest generation to read the root tree, even when all the devices were not provided in the cli. But in 2 disks RAID1 you may need to know what's in the disks individually, so this option -x | --degraded indicates to use only the given disk to dump. Signed-off-by: Anand Jain --- cmds-inspect-dump-tree.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/cmds-inspect-dump-tree.c b/cmds-inspect-dump-tree.c index df44bb635c9c..587b6081df0c 100644 --- a/cmds-inspect-dump-tree.c +++ b/cmds-inspect-dump-tree.c @@ -198,6 +198,7 @@ const char * const cmd_inspect_dump_tree_usage[] = { "-u|--uuid print only the uuid tree", "-b|--block print info from the specified block only", "-t|--tree print only tree with the given id (string or number)", + "-x|--degraded For RAID1, use the disk in the arg, do not scan for disks", NULL }; @@ -234,10 +235,11 @@ int cmd_inspect_dump_tree(int argc, char **argv) { "uuid", no_argument, NULL, 'u'}, { "block", required_argument, NULL, 'b'}, { "tree", required_argument, NULL, 't'}, + { "degraded", no_argument, NULL, 'x'}, { NULL, 0, NULL, 0 } }; - c = getopt_long(argc, argv, "deb:rRut:", long_options, NULL); + c = getopt_long(argc, argv, "deb:rRut:x", long_options, NULL); if (c < 0) break; switch (c) { @@ -286,6 +288,9 @@ int cmd_inspect_dump_tree(int argc, char **argv) } break; } + case 'x': + open_ctree_flags |= OPEN_CTREE_NO_DEVICES; + break; default: usage(cmd_inspect_dump_tree_usage); } -- 2.15.0