Now, if exec:
# btrfs-debug-tree <mount_point>
it echos:
: Superblock bytenr is larger than device size
But it is quite misleading, because it is a valid btrfs.
In this case, we should tell the developer to provide a block device.
After apply:
: '<mount_point>' is not a block device
: 'usage: btrfs-debug-tree [options] device
Signed-off-by: Gui Hecheng <guihc.fnst@xxxxxxxxxxxxxx>
---
btrfs-debug-tree.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/btrfs-debug-tree.c b/btrfs-debug-tree.c
index e46500d..7f079a9 100644
--- a/btrfs-debug-tree.c
+++ b/btrfs-debug-tree.c
@@ -179,6 +179,12 @@ int main(int ac, char **av)
if (check_argc_exact(ac, 1))
print_usage();
+ ret = check_arg_type(av[optind]);
+ if (ret != BTRFS_ARG_BLKDEV) {
+ fprintf(stderr, "'%s' is not a block device\n", av[optind]);
+ print_usage();
+ }
+
info = open_ctree_fs_info(av[optind], 0, 0, OPEN_CTREE_PARTIAL);
if (!info) {
fprintf(stderr, "unable to open %s\n", av[optind]);
--
1.8.1.4
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