btrfs-progs: print root item's last_snapshot value

Include last_snapshot value in print_root(). With btrfs-debug-tree, it
helps to identify whether its a snapshot-ed subvolume or not.

Signed-off-by: Lakshmipathi.G <Lakshmipathi.G@giis.co.in>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/print-tree.c b/print-tree.c
index dc1d276..7ddf400 100644 (file)
--- a/print-tree.c
+++ b/print-tree.c
@@ -481,12 +481,13 @@ static void print_root(struct extent_buffer *leaf, int slot)
        memset(&root_item, 0, sizeof(root_item));
        read_extent_buffer(leaf, &root_item, (unsigned long)ri, len);
 
-       printf("\t\troot data bytenr %llu level %d dirid %llu refs %u gen %llu\n",
+       printf("\t\troot data bytenr %llu level %d dirid %llu refs %u gen %llu lastsnap %llu\n",
                (unsigned long long)btrfs_root_bytenr(&root_item),
                btrfs_root_level(&root_item),
                (unsigned long long)btrfs_root_dirid(&root_item),
                btrfs_root_refs(&root_item),
-               (unsigned long long)btrfs_root_generation(&root_item));
+               (unsigned long long)btrfs_root_generation(&root_item),
+               (unsigned long long)btrfs_root_last_snapshot(&root_item));
 
        if (root_item.generation == root_item.generation_v2) {
                uuid_unparse(root_item.uuid, uuid_str);