diff options
Diffstat (limited to 'mkfs.c')
| -rw-r--r-- | mkfs.c | 45 |
1 files changed, 41 insertions, 4 deletions
@@ -33,6 +33,7 @@ #include "kerncompat.h" #include "ctree.h" #include "disk-io.h" +#include "volumes.h" #include "transaction.h" #include "utils.h" @@ -108,6 +109,9 @@ static int make_root_dir(int fd) { struct btrfs_root *root; struct btrfs_trans_handle *trans; struct btrfs_key location; + u64 bytes_used; + u64 chunk_start = 0; + u64 chunk_size = 0; int ret; root = open_ctree_fd(fd, 0); @@ -117,7 +121,40 @@ static int make_root_dir(int fd) { return -1; } trans = btrfs_start_transaction(root, 1); - ret = btrfs_make_block_groups(trans, root); + bytes_used = btrfs_super_bytes_used(&root->fs_info->super_copy); + + root->fs_info->force_system_allocs = 1; + ret = btrfs_make_block_group(trans, root, bytes_used, + BTRFS_BLOCK_GROUP_SYSTEM, + BTRFS_CHUNK_TREE_OBJECTID, + 0, BTRFS_MKFS_SYSTEM_GROUP_SIZE); + BUG_ON(ret); + ret = btrfs_alloc_chunk(trans, root->fs_info->extent_root, + &chunk_start, &chunk_size, + BTRFS_BLOCK_GROUP_METADATA); + BUG_ON(ret); + ret = btrfs_make_block_group(trans, root, 0, + BTRFS_BLOCK_GROUP_METADATA, + BTRFS_CHUNK_TREE_OBJECTID, + chunk_start, chunk_size); + BUG_ON(ret); + + root->fs_info->force_system_allocs = 0; + btrfs_commit_transaction(trans, root); + trans = btrfs_start_transaction(root, 1); + BUG_ON(!trans); + + ret = btrfs_alloc_chunk(trans, root->fs_info->extent_root, + &chunk_start, &chunk_size, + BTRFS_BLOCK_GROUP_DATA); + BUG_ON(ret); + ret = btrfs_make_block_group(trans, root, 0, + BTRFS_BLOCK_GROUP_DATA, + BTRFS_CHUNK_TREE_OBJECTID, + chunk_start, chunk_size); + BUG_ON(ret); + + // ret = btrfs_make_block_group(trans, root, 0, 1); ret = btrfs_make_root_dir(trans, root->fs_info->tree_root, BTRFS_ROOT_TREE_DIR_OBJECTID); if (ret) @@ -179,7 +216,7 @@ int main(int ac, char **av) u32 sectorsize = 4096; u32 nodesize = 16 * 1024; u32 stripesize = 4096; - u64 blocks[4]; + u64 blocks[6]; int zero_end = 0; while(1) { @@ -261,10 +298,10 @@ int main(int ac, char **av) } } - for (i = 0; i < 4; i++) + for (i = 0; i < 6; i++) blocks[i] = BTRFS_SUPER_INFO_OFFSET + leafsize * i; - ret = make_btrfs(fd, blocks, block_count, nodesize, leafsize, + ret = make_btrfs(fd, file, blocks, block_count, nodesize, leafsize, sectorsize, stripesize); if (ret) { fprintf(stderr, "error during mkfs %d\n", ret); |