forked from Mirrors/btrfs-progs
btrfs-progs: move make_btrfs arguments to a struct
No functional change, just introduce the structure and switch current users. Signed-off-by: David Sterba <dsterba@suse.com>master
David Sterba
parent
f7a18e4cab
commit
df4de2c089
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@ -2289,6 +2289,7 @@ static int do_convert(const char *devname, int datacsum, int packing, int noxatt
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struct btrfs_root *image_root;
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struct task_ctx ctx;
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char features_buf[64];
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struct btrfs_mkfs_config mkfs_cfg;
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ret = open_ext2fs(devname, &ext2_fs);
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if (ret) {
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@ -2337,9 +2338,17 @@ static int do_convert(const char *devname, int datacsum, int packing, int noxatt
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printf("\tblocksize: %u\n", blocksize);
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printf("\tnodesize: %u\n", nodesize);
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printf("\tfeatures: %s\n", features_buf);
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ret = make_btrfs(fd, devname, ext2_fs->super->s_volume_name,
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NULL, blocks, total_bytes, nodesize,
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blocksize, blocksize, features);
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mkfs_cfg.label = ext2_fs->super->s_volume_name;
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mkfs_cfg.fs_uuid = NULL;
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memcpy(mkfs_cfg.blocks, blocks, sizeof(blocks));
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mkfs_cfg.num_bytes = total_bytes;
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mkfs_cfg.nodesize = nodesize;
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mkfs_cfg.sectorsize = blocksize;
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mkfs_cfg.stripesize = blocksize;
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mkfs_cfg.features = features;
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ret = make_btrfs(fd, devname, &mkfs_cfg);
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if (ret) {
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fprintf(stderr, "unable to create initial ctree: %s\n",
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strerror(-ret));
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14
mkfs.c
14
mkfs.c
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@ -1187,7 +1187,6 @@ int main(int ac, char **av)
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int discard = 1;
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int ssd = 0;
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int force_overwrite = 0;
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char *source_dir = NULL;
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int source_dir_set = 0;
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u64 num_of_meta_chunks = 0;
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@ -1198,6 +1197,7 @@ int main(int ac, char **av)
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char fs_uuid[BTRFS_UUID_UNPARSED_SIZE] = { 0 };
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u64 features = BTRFS_MKFS_DEFAULT_FEATURES;
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struct mkfs_allocation allocation = { 0 };
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struct btrfs_mkfs_config mkfs_cfg;
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while(1) {
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int c;
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@ -1507,8 +1507,16 @@ int main(int ac, char **av)
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features |= BTRFS_FEATURE_INCOMPAT_RAID56;
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}
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ret = make_btrfs(fd, file, label, fs_uuid, blocks, dev_block_count,
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nodesize, sectorsize, stripesize, features);
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mkfs_cfg.label = label;
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mkfs_cfg.fs_uuid = fs_uuid;
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memcpy(mkfs_cfg.blocks, blocks, sizeof(blocks));
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mkfs_cfg.num_bytes = dev_block_count;
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mkfs_cfg.nodesize = nodesize;
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mkfs_cfg.sectorsize = sectorsize;
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mkfs_cfg.stripesize = stripesize;
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mkfs_cfg.features = features;
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ret = make_btrfs(fd, file, &mkfs_cfg);
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if (ret) {
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fprintf(stderr, "error during mkfs: %s\n", strerror(-ret));
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exit(1);
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154
utils.c
154
utils.c
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@ -177,9 +177,7 @@ int test_uuid_unique(char *fs_uuid)
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/*
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* @fs_uuid - if NULL, generates a UUID, returns back the new filesystem UUID
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*/
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int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
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u64 blocks[7], u64 num_bytes, u32 nodesize,
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u32 sectorsize, u32 stripesize, u64 features)
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int make_btrfs(int fd, const char *device, struct btrfs_mkfs_config *cfg)
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{
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struct btrfs_super_block super;
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struct extent_buffer *buf = NULL;
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@ -200,59 +198,61 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
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u64 ref_root;
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u32 array_size;
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u32 item_size;
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int skinny_metadata = !!(features &
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int skinny_metadata = !!(cfg->features &
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BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA);
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u64 num_bytes;
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first_free = BTRFS_SUPER_INFO_OFFSET + sectorsize * 2 - 1;
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first_free &= ~((u64)sectorsize - 1);
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first_free = BTRFS_SUPER_INFO_OFFSET + cfg->sectorsize * 2 - 1;
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first_free &= ~((u64)cfg->sectorsize - 1);
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memset(&super, 0, sizeof(super));
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num_bytes = (num_bytes / sectorsize) * sectorsize;
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if (fs_uuid && *fs_uuid) {
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if (uuid_parse(fs_uuid, super.fsid) != 0) {
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fprintf(stderr, "could not parse UUID: %s\n", fs_uuid);
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num_bytes = (cfg->num_bytes / cfg->sectorsize) * cfg->sectorsize;
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if (cfg->fs_uuid && *cfg->fs_uuid) {
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if (uuid_parse(cfg->fs_uuid, super.fsid) != 0) {
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fprintf(stderr, "could not parse UUID: %s\n",
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cfg->fs_uuid);
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ret = -EINVAL;
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goto out;
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}
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if (!test_uuid_unique(fs_uuid)) {
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fprintf(stderr, "non-unique UUID: %s\n", fs_uuid);
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if (!test_uuid_unique(cfg->fs_uuid)) {
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fprintf(stderr, "non-unique UUID: %s\n", cfg->fs_uuid);
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ret = -EBUSY;
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goto out;
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}
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} else {
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uuid_generate(super.fsid);
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if (fs_uuid)
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uuid_unparse(super.fsid, fs_uuid);
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if (cfg->fs_uuid)
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uuid_unparse(super.fsid, cfg->fs_uuid);
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}
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uuid_generate(super.dev_item.uuid);
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uuid_generate(chunk_tree_uuid);
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btrfs_set_super_bytenr(&super, blocks[0]);
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btrfs_set_super_bytenr(&super, cfg->blocks[0]);
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btrfs_set_super_num_devices(&super, 1);
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btrfs_set_super_magic(&super, BTRFS_MAGIC);
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btrfs_set_super_generation(&super, 1);
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btrfs_set_super_root(&super, blocks[1]);
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btrfs_set_super_chunk_root(&super, blocks[3]);
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btrfs_set_super_root(&super, cfg->blocks[1]);
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btrfs_set_super_chunk_root(&super, cfg->blocks[3]);
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btrfs_set_super_total_bytes(&super, num_bytes);
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btrfs_set_super_bytes_used(&super, 6 * nodesize);
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btrfs_set_super_sectorsize(&super, sectorsize);
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btrfs_set_super_leafsize(&super, nodesize);
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btrfs_set_super_nodesize(&super, nodesize);
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btrfs_set_super_stripesize(&super, stripesize);
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btrfs_set_super_bytes_used(&super, 6 * cfg->nodesize);
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btrfs_set_super_sectorsize(&super, cfg->sectorsize);
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btrfs_set_super_leafsize(&super, cfg->nodesize);
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btrfs_set_super_nodesize(&super, cfg->nodesize);
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btrfs_set_super_stripesize(&super, cfg->stripesize);
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btrfs_set_super_csum_type(&super, BTRFS_CSUM_TYPE_CRC32);
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btrfs_set_super_chunk_root_generation(&super, 1);
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btrfs_set_super_cache_generation(&super, -1);
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btrfs_set_super_incompat_flags(&super, features);
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if (label)
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strncpy(super.label, label, BTRFS_LABEL_SIZE - 1);
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btrfs_set_super_incompat_flags(&super, cfg->features);
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if (cfg->label)
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strncpy(super.label, cfg->label, BTRFS_LABEL_SIZE - 1);
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buf = malloc(sizeof(*buf) + max(sectorsize, nodesize));
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buf = malloc(sizeof(*buf) + max(cfg->sectorsize, cfg->nodesize));
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/* create the tree of root objects */
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memset(buf->data, 0, nodesize);
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buf->len = nodesize;
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btrfs_set_header_bytenr(buf, blocks[1]);
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memset(buf->data, 0, cfg->nodesize);
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buf->len = cfg->nodesize;
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btrfs_set_header_bytenr(buf, cfg->blocks[1]);
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btrfs_set_header_nritems(buf, 4);
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btrfs_set_header_generation(buf, 1);
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btrfs_set_header_backref_rev(buf, BTRFS_MIXED_BACKREF_REV);
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@ -270,10 +270,10 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
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btrfs_set_stack_inode_generation(inode_item, 1);
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btrfs_set_stack_inode_size(inode_item, 3);
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btrfs_set_stack_inode_nlink(inode_item, 1);
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btrfs_set_stack_inode_nbytes(inode_item, nodesize);
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btrfs_set_stack_inode_nbytes(inode_item, cfg->nodesize);
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btrfs_set_stack_inode_mode(inode_item, S_IFDIR | 0755);
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btrfs_set_root_refs(&root_item, 1);
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btrfs_set_root_used(&root_item, nodesize);
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btrfs_set_root_used(&root_item, cfg->nodesize);
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btrfs_set_root_generation(&root_item, 1);
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memset(&disk_key, 0, sizeof(disk_key));
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@ -281,8 +281,8 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
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btrfs_set_disk_key_offset(&disk_key, 0);
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nritems = 0;
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itemoff = __BTRFS_LEAF_DATA_SIZE(nodesize) - sizeof(root_item);
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btrfs_set_root_bytenr(&root_item, blocks[2]);
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itemoff = __BTRFS_LEAF_DATA_SIZE(cfg->nodesize) - sizeof(root_item);
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btrfs_set_root_bytenr(&root_item, cfg->blocks[2]);
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btrfs_set_disk_key_objectid(&disk_key, BTRFS_EXTENT_TREE_OBJECTID);
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btrfs_set_item_key(buf, &disk_key, nritems);
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btrfs_set_item_offset(buf, btrfs_item_nr(nritems), itemoff);
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@ -293,7 +293,7 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
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nritems++;
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itemoff = itemoff - sizeof(root_item);
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btrfs_set_root_bytenr(&root_item, blocks[4]);
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btrfs_set_root_bytenr(&root_item, cfg->blocks[4]);
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btrfs_set_disk_key_objectid(&disk_key, BTRFS_DEV_TREE_OBJECTID);
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btrfs_set_item_key(buf, &disk_key, nritems);
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btrfs_set_item_offset(buf, btrfs_item_nr(nritems), itemoff);
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@ -305,7 +305,7 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
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nritems++;
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itemoff = itemoff - sizeof(root_item);
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btrfs_set_root_bytenr(&root_item, blocks[5]);
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btrfs_set_root_bytenr(&root_item, cfg->blocks[5]);
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btrfs_set_disk_key_objectid(&disk_key, BTRFS_FS_TREE_OBJECTID);
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btrfs_set_item_key(buf, &disk_key, nritems);
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btrfs_set_item_offset(buf, btrfs_item_nr(nritems), itemoff);
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@ -317,7 +317,7 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
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nritems++;
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itemoff = itemoff - sizeof(root_item);
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btrfs_set_root_bytenr(&root_item, blocks[6]);
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btrfs_set_root_bytenr(&root_item, cfg->blocks[6]);
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btrfs_set_disk_key_objectid(&disk_key, BTRFS_CSUM_TREE_OBJECTID);
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btrfs_set_item_key(buf, &disk_key, nritems);
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btrfs_set_item_offset(buf, btrfs_item_nr(nritems), itemoff);
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@ -330,28 +330,28 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
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csum_tree_block_size(buf, BTRFS_CRC32_SIZE, 0);
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ret = pwrite(fd, buf->data, nodesize, blocks[1]);
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if (ret != nodesize) {
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ret = pwrite(fd, buf->data, cfg->nodesize, cfg->blocks[1]);
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if (ret != cfg->nodesize) {
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ret = (ret < 0 ? -errno : -EIO);
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goto out;
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}
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/* create the items for the extent tree */
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memset(buf->data + sizeof(struct btrfs_header), 0,
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nodesize - sizeof(struct btrfs_header));
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cfg->nodesize - sizeof(struct btrfs_header));
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nritems = 0;
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itemoff = __BTRFS_LEAF_DATA_SIZE(nodesize);
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itemoff = __BTRFS_LEAF_DATA_SIZE(cfg->nodesize);
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for (i = 1; i < 7; i++) {
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item_size = sizeof(struct btrfs_extent_item);
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if (!skinny_metadata)
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item_size += sizeof(struct btrfs_tree_block_info);
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BUG_ON(blocks[i] < first_free);
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BUG_ON(blocks[i] < blocks[i - 1]);
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BUG_ON(cfg->blocks[i] < first_free);
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BUG_ON(cfg->blocks[i] < cfg->blocks[i - 1]);
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/* create extent item */
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itemoff -= item_size;
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btrfs_set_disk_key_objectid(&disk_key, blocks[i]);
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btrfs_set_disk_key_objectid(&disk_key, cfg->blocks[i]);
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if (skinny_metadata) {
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btrfs_set_disk_key_type(&disk_key,
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BTRFS_METADATA_ITEM_KEY);
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@ -359,7 +359,7 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
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} else {
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btrfs_set_disk_key_type(&disk_key,
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BTRFS_EXTENT_ITEM_KEY);
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btrfs_set_disk_key_offset(&disk_key, nodesize);
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btrfs_set_disk_key_offset(&disk_key, cfg->nodesize);
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}
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btrfs_set_item_key(buf, &disk_key, nritems);
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btrfs_set_item_offset(buf, btrfs_item_nr(nritems),
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@ -376,7 +376,7 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
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/* create extent ref */
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ref_root = reference_root_table[i];
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btrfs_set_disk_key_objectid(&disk_key, blocks[i]);
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btrfs_set_disk_key_objectid(&disk_key, cfg->blocks[i]);
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btrfs_set_disk_key_offset(&disk_key, ref_root);
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btrfs_set_disk_key_type(&disk_key, BTRFS_TREE_BLOCK_REF_KEY);
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btrfs_set_item_key(buf, &disk_key, nritems);
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@ -385,22 +385,22 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
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btrfs_set_item_size(buf, btrfs_item_nr(nritems), 0);
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nritems++;
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}
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btrfs_set_header_bytenr(buf, blocks[2]);
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btrfs_set_header_bytenr(buf, cfg->blocks[2]);
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btrfs_set_header_owner(buf, BTRFS_EXTENT_TREE_OBJECTID);
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btrfs_set_header_nritems(buf, nritems);
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csum_tree_block_size(buf, BTRFS_CRC32_SIZE, 0);
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ret = pwrite(fd, buf->data, nodesize, blocks[2]);
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if (ret != nodesize) {
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ret = pwrite(fd, buf->data, cfg->nodesize, cfg->blocks[2]);
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if (ret != cfg->nodesize) {
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ret = (ret < 0 ? -errno : -EIO);
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goto out;
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}
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/* create the chunk tree */
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memset(buf->data + sizeof(struct btrfs_header), 0,
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nodesize - sizeof(struct btrfs_header));
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cfg->nodesize - sizeof(struct btrfs_header));
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nritems = 0;
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item_size = sizeof(*dev_item);
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itemoff = __BTRFS_LEAF_DATA_SIZE(nodesize) - item_size;
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itemoff = __BTRFS_LEAF_DATA_SIZE(cfg->nodesize) - item_size;
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/* first device 1 (there is no device 0) */
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btrfs_set_disk_key_objectid(&disk_key, BTRFS_DEV_ITEMS_OBJECTID);
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@ -416,9 +416,9 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
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btrfs_set_device_total_bytes(buf, dev_item, num_bytes);
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btrfs_set_device_bytes_used(buf, dev_item,
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BTRFS_MKFS_SYSTEM_GROUP_SIZE);
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btrfs_set_device_io_align(buf, dev_item, sectorsize);
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btrfs_set_device_io_width(buf, dev_item, sectorsize);
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btrfs_set_device_sector_size(buf, dev_item, sectorsize);
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btrfs_set_device_io_align(buf, dev_item, cfg->sectorsize);
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btrfs_set_device_io_width(buf, dev_item, cfg->sectorsize);
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btrfs_set_device_sector_size(buf, dev_item, cfg->sectorsize);
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btrfs_set_device_type(buf, dev_item, 0);
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write_extent_buffer(buf, super.dev_item.uuid,
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@ -447,9 +447,9 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
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btrfs_set_chunk_owner(buf, chunk, BTRFS_EXTENT_TREE_OBJECTID);
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btrfs_set_chunk_stripe_len(buf, chunk, 64 * 1024);
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btrfs_set_chunk_type(buf, chunk, BTRFS_BLOCK_GROUP_SYSTEM);
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btrfs_set_chunk_io_align(buf, chunk, sectorsize);
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btrfs_set_chunk_io_width(buf, chunk, sectorsize);
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btrfs_set_chunk_sector_size(buf, chunk, sectorsize);
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btrfs_set_chunk_io_align(buf, chunk, cfg->sectorsize);
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btrfs_set_chunk_io_width(buf, chunk, cfg->sectorsize);
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btrfs_set_chunk_sector_size(buf, chunk, cfg->sectorsize);
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btrfs_set_chunk_num_stripes(buf, chunk, 1);
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btrfs_set_stripe_devid_nr(buf, chunk, 0, 1);
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btrfs_set_stripe_offset_nr(buf, chunk, 0, 0);
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@ -472,21 +472,21 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
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ptr += item_size;
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btrfs_set_super_sys_array_size(&super, array_size);
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btrfs_set_header_bytenr(buf, blocks[3]);
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btrfs_set_header_bytenr(buf, cfg->blocks[3]);
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btrfs_set_header_owner(buf, BTRFS_CHUNK_TREE_OBJECTID);
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btrfs_set_header_nritems(buf, nritems);
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csum_tree_block_size(buf, BTRFS_CRC32_SIZE, 0);
|
||||
ret = pwrite(fd, buf->data, nodesize, blocks[3]);
|
||||
if (ret != nodesize) {
|
||||
ret = pwrite(fd, buf->data, cfg->nodesize, cfg->blocks[3]);
|
||||
if (ret != cfg->nodesize) {
|
||||
ret = (ret < 0 ? -errno : -EIO);
|
||||
goto out;
|
||||
}
|
||||
|
||||
/* create the device tree */
|
||||
memset(buf->data + sizeof(struct btrfs_header), 0,
|
||||
nodesize - sizeof(struct btrfs_header));
|
||||
cfg->nodesize - sizeof(struct btrfs_header));
|
||||
nritems = 0;
|
||||
itemoff = __BTRFS_LEAF_DATA_SIZE(nodesize) -
|
||||
itemoff = __BTRFS_LEAF_DATA_SIZE(cfg->nodesize) -
|
||||
sizeof(struct btrfs_dev_extent);
|
||||
|
||||
btrfs_set_disk_key_objectid(&disk_key, 1);
|
||||
|
|
@ -511,49 +511,49 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
|
|||
BTRFS_MKFS_SYSTEM_GROUP_SIZE);
|
||||
nritems++;
|
||||
|
||||
btrfs_set_header_bytenr(buf, blocks[4]);
|
||||
btrfs_set_header_bytenr(buf, cfg->blocks[4]);
|
||||
btrfs_set_header_owner(buf, BTRFS_DEV_TREE_OBJECTID);
|
||||
btrfs_set_header_nritems(buf, nritems);
|
||||
csum_tree_block_size(buf, BTRFS_CRC32_SIZE, 0);
|
||||
ret = pwrite(fd, buf->data, nodesize, blocks[4]);
|
||||
if (ret != nodesize) {
|
||||
ret = pwrite(fd, buf->data, cfg->nodesize, cfg->blocks[4]);
|
||||
if (ret != cfg->nodesize) {
|
||||
ret = (ret < 0 ? -errno : -EIO);
|
||||
goto out;
|
||||
}
|
||||
|
||||
/* create the FS root */
|
||||
memset(buf->data + sizeof(struct btrfs_header), 0,
|
||||
nodesize - sizeof(struct btrfs_header));
|
||||
btrfs_set_header_bytenr(buf, blocks[5]);
|
||||
cfg->nodesize - sizeof(struct btrfs_header));
|
||||
btrfs_set_header_bytenr(buf, cfg->blocks[5]);
|
||||
btrfs_set_header_owner(buf, BTRFS_FS_TREE_OBJECTID);
|
||||
btrfs_set_header_nritems(buf, 0);
|
||||
csum_tree_block_size(buf, BTRFS_CRC32_SIZE, 0);
|
||||
ret = pwrite(fd, buf->data, nodesize, blocks[5]);
|
||||
if (ret != nodesize) {
|
||||
ret = pwrite(fd, buf->data, cfg->nodesize, cfg->blocks[5]);
|
||||
if (ret != cfg->nodesize) {
|
||||
ret = (ret < 0 ? -errno : -EIO);
|
||||
goto out;
|
||||
}
|
||||
/* finally create the csum root */
|
||||
memset(buf->data + sizeof(struct btrfs_header), 0,
|
||||
nodesize - sizeof(struct btrfs_header));
|
||||
btrfs_set_header_bytenr(buf, blocks[6]);
|
||||
cfg->nodesize - sizeof(struct btrfs_header));
|
||||
btrfs_set_header_bytenr(buf, cfg->blocks[6]);
|
||||
btrfs_set_header_owner(buf, BTRFS_CSUM_TREE_OBJECTID);
|
||||
btrfs_set_header_nritems(buf, 0);
|
||||
csum_tree_block_size(buf, BTRFS_CRC32_SIZE, 0);
|
||||
ret = pwrite(fd, buf->data, nodesize, blocks[6]);
|
||||
if (ret != nodesize) {
|
||||
ret = pwrite(fd, buf->data, cfg->nodesize, cfg->blocks[6]);
|
||||
if (ret != cfg->nodesize) {
|
||||
ret = (ret < 0 ? -errno : -EIO);
|
||||
goto out;
|
||||
}
|
||||
|
||||
/* and write out the super block */
|
||||
BUG_ON(sizeof(super) > sectorsize);
|
||||
memset(buf->data, 0, sectorsize);
|
||||
BUG_ON(sizeof(super) > cfg->sectorsize);
|
||||
memset(buf->data, 0, cfg->sectorsize);
|
||||
memcpy(buf->data, &super, sizeof(super));
|
||||
buf->len = sectorsize;
|
||||
buf->len = cfg->sectorsize;
|
||||
csum_tree_block_size(buf, BTRFS_CRC32_SIZE, 0);
|
||||
ret = pwrite(fd, buf->data, sectorsize, blocks[0]);
|
||||
if (ret != sectorsize) {
|
||||
ret = pwrite(fd, buf->data, cfg->sectorsize, cfg->blocks[0]);
|
||||
if (ret != cfg->sectorsize) {
|
||||
ret = (ret < 0 ? -errno : -EIO);
|
||||
goto out;
|
||||
}
|
||||
|
|
|
|||
15
utils.h
15
utils.h
|
|
@ -105,9 +105,18 @@ char* btrfs_parse_fs_features(char *namelist, u64 *flags);
|
|||
void btrfs_process_fs_features(u64 flags);
|
||||
void btrfs_parse_features_to_string(char *buf, u64 flags);
|
||||
|
||||
int make_btrfs(int fd, const char *device, const char *label,
|
||||
char *fs_uuid, u64 blocks[6], u64 num_bytes, u32 nodesize,
|
||||
u32 sectorsize, u32 stripesize, u64 features);
|
||||
struct btrfs_mkfs_config {
|
||||
char *label;
|
||||
char *fs_uuid;
|
||||
u64 blocks[8];
|
||||
u64 num_bytes;
|
||||
u32 nodesize;
|
||||
u32 sectorsize;
|
||||
u32 stripesize;
|
||||
u64 features;
|
||||
};
|
||||
|
||||
int make_btrfs(int fd, const char *device, struct btrfs_mkfs_config *cfg);
|
||||
int btrfs_make_root_dir(struct btrfs_trans_handle *trans,
|
||||
struct btrfs_root *root, u64 objectid);
|
||||
int btrfs_prepare_device(int fd, char *file, int zero_end, u64 *block_count_ret,
|
||||
|
|
|
|||
Loading…
Reference in New Issue