Add support for filesystem labels via mkfs.btrfs -L

[platform/upstream/btrfs-progs.git] / ctree.h

diff --git a/ctree.h b/ctree.h
index 4e62fe6..1c22de7 100644 (file)
--- a/ctree.h
+++ b/ctree.h
@@ -235,6 +235,7 @@ struct btrfs_header {
  * room to translate 14 chunks with 3 stripes each.
  */
 #define BTRFS_SYSTEM_CHUNK_ARRAY_SIZE 2048
+#define BTRFS_LABEL_SIZE 256
 
 /*
  * the super block basically lists the main trees of the FS
@@ -264,6 +265,7 @@ struct btrfs_super_block {
        u8 root_level;
        u8 chunk_root_level;
        struct btrfs_dev_item dev_item;
+       char label[BTRFS_LABEL_SIZE];
        u8 sys_chunk_array[BTRFS_SYSTEM_CHUNK_ARRAY_SIZE];
 } __attribute__ ((__packed__));