diff options
Diffstat (limited to 'mkfs.c')
| -rw-r--r-- | mkfs.c | 4 |
1 files changed, 4 insertions, 0 deletions
@@ -9,6 +9,7 @@ #include <sys/stat.h> #include <fcntl.h> #include <unistd.h> +#include <uuid/uuid.h> #include "kerncompat.h" #include "radix-tree.h" #include "ctree.h" @@ -99,6 +100,7 @@ int mkfs(int fd, u64 num_blocks, u32 blocksize) btrfs_set_super_blocksize(&super, blocksize); btrfs_set_super_total_blocks(&super, num_blocks); btrfs_set_super_blocks_used(&super, start_block + 5); + uuid_generate(super.fsid); block = malloc(blocksize); memset(block, 0, blocksize); @@ -115,6 +117,8 @@ int mkfs(int fd, u64 num_blocks, u32 blocksize) btrfs_set_header_blocknr(&empty_leaf->header, start_block + 1); btrfs_set_header_nritems(&empty_leaf->header, 3); btrfs_set_header_generation(&empty_leaf->header, 0); + memcpy(empty_leaf->header.fsid, super.fsid, + sizeof(empty_leaf->header.fsid)); /* create the items for the root tree */ btrfs_set_root_blocknr(&root_item, start_block + 2); |