path: root/send-utils.h
diff options
authorStefan Behrens <>2013-04-23 12:18:55 +0200
committerDavid Sterba <>2013-04-23 19:16:25 +0200
commit6d26357f8e7d73d802e8025407fe17542a18164b (patch)
treeabef033343ba9e957b2264dad8d3046310c07c9b /send-utils.h
parent6b76570652e2f5a1f776848f330ca01e418a186c (diff)
Btrfs-progs: add function to map subvol ID to path
Several tools like btrfs-send and btrfs-receive need to map a subvolume ID to a filesystem path. The so far existing methods in btrfs-list.c cause a horrible effort when performing this operation (and the effort is dependent on the number of existing subvolumes with quadratic effort). This commit adds a function that is able to map a subvolume ID to a filesystem path with an effort that is independent of the number of existing subvolumes. In addition to this function, a command line frontend is added as well: btrfs inspect-internal subvolid-resolve <subvolid> <path> Signed-off-by: Stefan Behrens <>
Diffstat (limited to 'send-utils.h')
1 files changed, 1 insertions, 1 deletions
diff --git a/send-utils.h b/send-utils.h
index 78abf944..06af75f3 100644
--- a/send-utils.h
+++ b/send-utils.h
@@ -70,7 +70,7 @@ struct subvol_info *subvol_uuid_search(struct subvol_uuid_search *s,
void subvol_uuid_search_add(struct subvol_uuid_search *s,
struct subvol_info *si);
+int btrfs_subvolid_resolve(int fd, char *path, size_t path_len, u64 subvol_id);
char *path_cat(const char *p1, const char *p2);
char *path_cat3(const char *p1, const char *p2, const char *p3);