diff options
Diffstat (limited to 'btrfs-list.c')
| -rw-r--r-- | btrfs-list.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/btrfs-list.c b/btrfs-list.c index 3bd305b3..247711d5 100644 --- a/btrfs-list.c +++ b/btrfs-list.c @@ -1468,6 +1468,44 @@ int btrfs_list_subvols_print(int fd, struct btrfs_list_filter_set *filter_set, return 0; } +int btrfs_get_subvol(int fd, struct root_info *the_ri) +{ + int ret = -1; + struct root_lookup rl; + struct rb_node *rbn; + struct root_info *ri; + u64 root_id = btrfs_list_get_path_rootid(fd); + + if (btrfs_list_subvols(fd, &rl)) + return 1; + + rbn = rb_first(&rl.root); + while(rbn) { + ri = rb_entry(rbn, struct root_info, rb_node); + resolve_root(&rl, ri, root_id); + if (!comp_entry_with_rootid(the_ri, ri, 0)) { + memcpy(the_ri, ri, offsetof(struct root_info, path)); + if (ri->path) + the_ri->path = strdup(ri->path); + else + the_ri->path = NULL; + if (ri->name) + the_ri->name = strdup(ri->name); + else + the_ri->name = NULL; + if (ri->full_path) + the_ri->full_path = strdup(ri->full_path); + else + the_ri->name = NULL; + ret = 0; + break; + } + rbn = rb_next(rbn); + } + __free_all_subvolumn(&rl); + return ret; +} + static int print_one_extent(int fd, struct btrfs_ioctl_search_header *sh, struct btrfs_file_extent_item *item, u64 found_gen, u64 *cache_dirid, |