btrfs-progs: Switch btrfs-find-root to use the new open_ctree flags

Since in previous patches, we introduced the new open_ctree flag
OPEN_CTREE_CHUNK_ROOT_ONLY, switch btrfs-find-root to use it instead of
the open_ctree_broken().

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>

diff --git a/btrfs-find-root.c b/btrfs-find-root.c
index c6e6b82..cdbcca6 100644 (file)
--- a/btrfs-find-root.c
+++ b/btrfs-find-root.c
@@ -278,7 +278,6 @@ static int find_root(struct btrfs_root *root)
 int main(int argc, char **argv)
 {
        struct btrfs_root *root;
-       int dev_fd;
        int opt;
        int ret;
 
@@ -306,15 +305,7 @@ int main(int argc, char **argv)
                exit(1);
        }
 
-       dev_fd = open(argv[optind], O_RDONLY);
-       if (dev_fd < 0) {
-               fprintf(stderr, "Failed to open device %s\n", argv[optind]);
-               exit(1);
-       }
-
-       root = open_ctree_broken(dev_fd, argv[optind]);
-       close(dev_fd);
-
+       root = open_ctree(argv[optind], 0, OPEN_CTREE_CHUNK_ROOT_ONLY);
        if (!root) {
                fprintf(stderr, "Open ctree failed\n");
                exit(1);