[PATCH 3/4] btrfs-progs: map-logical: loosen the required trees to open the filesystem

[Qu Wenruo <wqu@suse.com>]

For btrfs-map-logical, it only requires chunk tree to do the
logicla->physical mapping.

All othe trees are not really needed.

Loosen the required trees to make btrfs-map-logical to work better on
corrupted fs.

Signed-off-by: Qu Wenruo <wqu@suse.com>
---
 btrfs-map-logical.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/btrfs-map-logical.c b/btrfs-map-logical.c
index 21f00fa20ce8..9f119d08bad8 100644
--- a/btrfs-map-logical.c
+++ b/btrfs-map-logical.c
@@ -261,7 +261,8 @@ int main(int argc, char **argv)
 	radix_tree_init();
 	cache_tree_init(&root_cache);
 
-	root = open_ctree(dev, 0, 0);
+	root = open_ctree(dev, 0, OPEN_CTREE_PARTIAL |
+				  OPEN_CTREE_NO_BLOCK_GROUPS);
 	if (!root) {
 		fprintf(stderr, "Open ctree failed\n");
 		free(output_file);
-- 
2.32.0