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 <anand.j...@oracle.com>
---
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 <block_num> print info from the specified block only",
"-t|--tree <tree_id> 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
--
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