mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/kdave/btrfs-progs.git
synced 2024-11-16 00:34:32 +08:00
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>
This commit is contained in:
David Sterba
parent
f7a18e4cab
commit
df4de2c089
@ -2289,6 +2289,7 @@ static int do_convert(const char *devname, int datacsum, int packing, int noxatt
|
||||
struct btrfs_root *image_root;
|
||||
struct task_ctx ctx;
|
||||
char features_buf[64];
|
||||
struct btrfs_mkfs_config mkfs_cfg;
|
||||
|
||||
ret = open_ext2fs(devname, &ext2_fs);
|
||||
if (ret) {
|
||||
@ -2337,9 +2338,17 @@ static int do_convert(const char *devname, int datacsum, int packing, int noxatt
|
||||
printf("\tblocksize: %u\n", blocksize);
|
||||
printf("\tnodesize: %u\n", nodesize);
|
||||
printf("\tfeatures: %s\n", features_buf);
|
||||
ret = make_btrfs(fd, devname, ext2_fs->super->s_volume_name,
|
||||
NULL, blocks, total_bytes, nodesize,
|
||||
blocksize, blocksize, features);
|
||||
|
||||
mkfs_cfg.label = ext2_fs->super->s_volume_name;
|
||||
mkfs_cfg.fs_uuid = NULL;
|
||||
memcpy(mkfs_cfg.blocks, blocks, sizeof(blocks));
|
||||
mkfs_cfg.num_bytes = total_bytes;
|
||||
mkfs_cfg.nodesize = nodesize;
|
||||
mkfs_cfg.sectorsize = blocksize;
|
||||
mkfs_cfg.stripesize = blocksize;
|
||||
mkfs_cfg.features = features;
|
||||
|
||||
ret = make_btrfs(fd, devname, &mkfs_cfg);
|
||||
if (ret) {
|
||||
fprintf(stderr, "unable to create initial ctree: %s\n",
|
||||
strerror(-ret));
|
||||
|
||||
14
mkfs.c
14
mkfs.c
@ -1187,7 +1187,6 @@ int main(int ac, char **av)
|
||||
int discard = 1;
|
||||
int ssd = 0;
|
||||
int force_overwrite = 0;
|
||||
|
||||
char *source_dir = NULL;
|
||||
int source_dir_set = 0;
|
||||
u64 num_of_meta_chunks = 0;
|
||||
@ -1198,6 +1197,7 @@ int main(int ac, char **av)
|
||||
char fs_uuid[BTRFS_UUID_UNPARSED_SIZE] = { 0 };
|
||||
u64 features = BTRFS_MKFS_DEFAULT_FEATURES;
|
||||
struct mkfs_allocation allocation = { 0 };
|
||||
struct btrfs_mkfs_config mkfs_cfg;
|
||||
|
||||
while(1) {
|
||||
int c;
|
||||
@ -1507,8 +1507,16 @@ int main(int ac, char **av)
|
||||
features |= BTRFS_FEATURE_INCOMPAT_RAID56;
|
||||
}
|
||||
|
||||
ret = make_btrfs(fd, file, label, fs_uuid, blocks, dev_block_count,
|
||||
nodesize, sectorsize, stripesize, features);
|
||||
mkfs_cfg.label = label;
|
||||
mkfs_cfg.fs_uuid = fs_uuid;
|
||||
memcpy(mkfs_cfg.blocks, blocks, sizeof(blocks));
|
||||
mkfs_cfg.num_bytes = dev_block_count;
|
||||
mkfs_cfg.nodesize = nodesize;
|
||||
mkfs_cfg.sectorsize = sectorsize;
|
||||
mkfs_cfg.stripesize = stripesize;
|
||||
mkfs_cfg.features = features;
|
||||
|
||||
ret = make_btrfs(fd, file, &mkfs_cfg);
|
||||
if (ret) {
|
||||
fprintf(stderr, "error during mkfs: %s\n", strerror(-ret));
|
||||
exit(1);
|
||||
|
||||
154
utils.c
154
utils.c
@ -177,9 +177,7 @@ int test_uuid_unique(char *fs_uuid)
|
||||
/*
|
||||
* @fs_uuid - if NULL, generates a UUID, returns back the new filesystem UUID
|
||||
*/
|
||||
int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
|
||||
u64 blocks[7], u64 num_bytes, u32 nodesize,
|
||||
u32 sectorsize, u32 stripesize, u64 features)
|
||||
int make_btrfs(int fd, const char *device, struct btrfs_mkfs_config *cfg)
|
||||
{
|
||||
struct btrfs_super_block super;
|
||||
struct extent_buffer *buf = NULL;
|
||||
@ -200,59 +198,61 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
|
||||
u64 ref_root;
|
||||
u32 array_size;
|
||||
u32 item_size;
|
||||
int skinny_metadata = !!(features &
|
||||
int skinny_metadata = !!(cfg->features &
|
||||
BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA);
|
||||
u64 num_bytes;
|
||||
|
||||
first_free = BTRFS_SUPER_INFO_OFFSET + sectorsize * 2 - 1;
|
||||
first_free &= ~((u64)sectorsize - 1);
|
||||
first_free = BTRFS_SUPER_INFO_OFFSET + cfg->sectorsize * 2 - 1;
|
||||
first_free &= ~((u64)cfg->sectorsize - 1);
|
||||
|
||||
memset(&super, 0, sizeof(super));
|
||||
|
||||
num_bytes = (num_bytes / sectorsize) * sectorsize;
|
||||
if (fs_uuid && *fs_uuid) {
|
||||
if (uuid_parse(fs_uuid, super.fsid) != 0) {
|
||||
fprintf(stderr, "could not parse UUID: %s\n", fs_uuid);
|
||||
num_bytes = (cfg->num_bytes / cfg->sectorsize) * cfg->sectorsize;
|
||||
if (cfg->fs_uuid && *cfg->fs_uuid) {
|
||||
if (uuid_parse(cfg->fs_uuid, super.fsid) != 0) {
|
||||
fprintf(stderr, "could not parse UUID: %s\n",
|
||||
cfg->fs_uuid);
|
||||
ret = -EINVAL;
|
||||
goto out;
|
||||
}
|
||||
if (!test_uuid_unique(fs_uuid)) {
|
||||
fprintf(stderr, "non-unique UUID: %s\n", fs_uuid);
|
||||
if (!test_uuid_unique(cfg->fs_uuid)) {
|
||||
fprintf(stderr, "non-unique UUID: %s\n", cfg->fs_uuid);
|
||||
ret = -EBUSY;
|
||||
goto out;
|
||||
}
|
||||
} else {
|
||||
uuid_generate(super.fsid);
|
||||
if (fs_uuid)
|
||||
uuid_unparse(super.fsid, fs_uuid);
|
||||
if (cfg->fs_uuid)
|
||||
uuid_unparse(super.fsid, cfg->fs_uuid);
|
||||
}
|
||||
uuid_generate(super.dev_item.uuid);
|
||||
uuid_generate(chunk_tree_uuid);
|
||||
|
||||
btrfs_set_super_bytenr(&super, blocks[0]);
|
||||
btrfs_set_super_bytenr(&super, cfg->blocks[0]);
|
||||
btrfs_set_super_num_devices(&super, 1);
|
||||
btrfs_set_super_magic(&super, BTRFS_MAGIC);
|
||||
btrfs_set_super_generation(&super, 1);
|
||||
btrfs_set_super_root(&super, blocks[1]);
|
||||
btrfs_set_super_chunk_root(&super, blocks[3]);
|
||||
btrfs_set_super_root(&super, cfg->blocks[1]);
|
||||
btrfs_set_super_chunk_root(&super, cfg->blocks[3]);
|
||||
btrfs_set_super_total_bytes(&super, num_bytes);
|
||||
btrfs_set_super_bytes_used(&super, 6 * nodesize);
|
||||
btrfs_set_super_sectorsize(&super, sectorsize);
|
||||
btrfs_set_super_leafsize(&super, nodesize);
|
||||
btrfs_set_super_nodesize(&super, nodesize);
|
||||
btrfs_set_super_stripesize(&super, stripesize);
|
||||
btrfs_set_super_bytes_used(&super, 6 * cfg->nodesize);
|
||||
btrfs_set_super_sectorsize(&super, cfg->sectorsize);
|
||||
btrfs_set_super_leafsize(&super, cfg->nodesize);
|
||||
btrfs_set_super_nodesize(&super, cfg->nodesize);
|
||||
btrfs_set_super_stripesize(&super, cfg->stripesize);
|
||||
btrfs_set_super_csum_type(&super, BTRFS_CSUM_TYPE_CRC32);
|
||||
btrfs_set_super_chunk_root_generation(&super, 1);
|
||||
btrfs_set_super_cache_generation(&super, -1);
|
||||
btrfs_set_super_incompat_flags(&super, features);
|
||||
if (label)
|
||||
strncpy(super.label, label, BTRFS_LABEL_SIZE - 1);
|
||||
btrfs_set_super_incompat_flags(&super, cfg->features);
|
||||
if (cfg->label)
|
||||
strncpy(super.label, cfg->label, BTRFS_LABEL_SIZE - 1);
|
||||
|
||||
buf = malloc(sizeof(*buf) + max(sectorsize, nodesize));
|
||||
buf = malloc(sizeof(*buf) + max(cfg->sectorsize, cfg->nodesize));
|
||||
|
||||
/* create the tree of root objects */
|
||||
memset(buf->data, 0, nodesize);
|
||||
buf->len = nodesize;
|
||||
btrfs_set_header_bytenr(buf, blocks[1]);
|
||||
memset(buf->data, 0, cfg->nodesize);
|
||||
buf->len = cfg->nodesize;
|
||||
btrfs_set_header_bytenr(buf, cfg->blocks[1]);
|
||||
btrfs_set_header_nritems(buf, 4);
|
||||
btrfs_set_header_generation(buf, 1);
|
||||
btrfs_set_header_backref_rev(buf, BTRFS_MIXED_BACKREF_REV);
|
||||
@ -270,10 +270,10 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
|
||||
btrfs_set_stack_inode_generation(inode_item, 1);
|
||||
btrfs_set_stack_inode_size(inode_item, 3);
|
||||
btrfs_set_stack_inode_nlink(inode_item, 1);
|
||||
btrfs_set_stack_inode_nbytes(inode_item, nodesize);
|
||||
btrfs_set_stack_inode_nbytes(inode_item, cfg->nodesize);
|
||||
btrfs_set_stack_inode_mode(inode_item, S_IFDIR | 0755);
|
||||
btrfs_set_root_refs(&root_item, 1);
|
||||
btrfs_set_root_used(&root_item, nodesize);
|
||||
btrfs_set_root_used(&root_item, cfg->nodesize);
|
||||
btrfs_set_root_generation(&root_item, 1);
|
||||
|
||||
memset(&disk_key, 0, sizeof(disk_key));
|
||||
@ -281,8 +281,8 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
|
||||
btrfs_set_disk_key_offset(&disk_key, 0);
|
||||
nritems = 0;
|
||||
|
||||
itemoff = __BTRFS_LEAF_DATA_SIZE(nodesize) - sizeof(root_item);
|
||||
btrfs_set_root_bytenr(&root_item, blocks[2]);
|
||||
itemoff = __BTRFS_LEAF_DATA_SIZE(cfg->nodesize) - sizeof(root_item);
|
||||
btrfs_set_root_bytenr(&root_item, cfg->blocks[2]);
|
||||
btrfs_set_disk_key_objectid(&disk_key, BTRFS_EXTENT_TREE_OBJECTID);
|
||||
btrfs_set_item_key(buf, &disk_key, nritems);
|
||||
btrfs_set_item_offset(buf, btrfs_item_nr(nritems), itemoff);
|
||||
@ -293,7 +293,7 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
|
||||
nritems++;
|
||||
|
||||
itemoff = itemoff - sizeof(root_item);
|
||||
btrfs_set_root_bytenr(&root_item, blocks[4]);
|
||||
btrfs_set_root_bytenr(&root_item, cfg->blocks[4]);
|
||||
btrfs_set_disk_key_objectid(&disk_key, BTRFS_DEV_TREE_OBJECTID);
|
||||
btrfs_set_item_key(buf, &disk_key, nritems);
|
||||
btrfs_set_item_offset(buf, btrfs_item_nr(nritems), itemoff);
|
||||
@ -305,7 +305,7 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
|
||||
nritems++;
|
||||
|
||||
itemoff = itemoff - sizeof(root_item);
|
||||
btrfs_set_root_bytenr(&root_item, blocks[5]);
|
||||
btrfs_set_root_bytenr(&root_item, cfg->blocks[5]);
|
||||
btrfs_set_disk_key_objectid(&disk_key, BTRFS_FS_TREE_OBJECTID);
|
||||
btrfs_set_item_key(buf, &disk_key, nritems);
|
||||
btrfs_set_item_offset(buf, btrfs_item_nr(nritems), itemoff);
|
||||
@ -317,7 +317,7 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
|
||||
nritems++;
|
||||
|
||||
itemoff = itemoff - sizeof(root_item);
|
||||
btrfs_set_root_bytenr(&root_item, blocks[6]);
|
||||
btrfs_set_root_bytenr(&root_item, cfg->blocks[6]);
|
||||
btrfs_set_disk_key_objectid(&disk_key, BTRFS_CSUM_TREE_OBJECTID);
|
||||
btrfs_set_item_key(buf, &disk_key, nritems);
|
||||
btrfs_set_item_offset(buf, btrfs_item_nr(nritems), itemoff);
|
||||
@ -330,28 +330,28 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
|
||||
|
||||
|
||||
csum_tree_block_size(buf, BTRFS_CRC32_SIZE, 0);
|
||||
ret = pwrite(fd, buf->data, nodesize, blocks[1]);
|
||||
if (ret != nodesize) {
|
||||
ret = pwrite(fd, buf->data, cfg->nodesize, cfg->blocks[1]);
|
||||
if (ret != cfg->nodesize) {
|
||||
ret = (ret < 0 ? -errno : -EIO);
|
||||
goto out;
|
||||
}
|
||||
|
||||
/* create the items for the extent 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);
|
||||
for (i = 1; i < 7; i++) {
|
||||
item_size = sizeof(struct btrfs_extent_item);
|
||||
if (!skinny_metadata)
|
||||
item_size += sizeof(struct btrfs_tree_block_info);
|
||||
|
||||
BUG_ON(blocks[i] < first_free);
|
||||
BUG_ON(blocks[i] < blocks[i - 1]);
|
||||
BUG_ON(cfg->blocks[i] < first_free);
|
||||
BUG_ON(cfg->blocks[i] < cfg->blocks[i - 1]);
|
||||
|
||||
/* create extent item */
|
||||
itemoff -= item_size;
|
||||
btrfs_set_disk_key_objectid(&disk_key, blocks[i]);
|
||||
btrfs_set_disk_key_objectid(&disk_key, cfg->blocks[i]);
|
||||
if (skinny_metadata) {
|
||||
btrfs_set_disk_key_type(&disk_key,
|
||||
BTRFS_METADATA_ITEM_KEY);
|
||||
@ -359,7 +359,7 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
|
||||
} else {
|
||||
btrfs_set_disk_key_type(&disk_key,
|
||||
BTRFS_EXTENT_ITEM_KEY);
|
||||
btrfs_set_disk_key_offset(&disk_key, nodesize);
|
||||
btrfs_set_disk_key_offset(&disk_key, cfg->nodesize);
|
||||
}
|
||||
btrfs_set_item_key(buf, &disk_key, nritems);
|
||||
btrfs_set_item_offset(buf, btrfs_item_nr(nritems),
|
||||
@ -376,7 +376,7 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
|
||||
|
||||
/* create extent ref */
|
||||
ref_root = reference_root_table[i];
|
||||
btrfs_set_disk_key_objectid(&disk_key, blocks[i]);
|
||||
btrfs_set_disk_key_objectid(&disk_key, cfg->blocks[i]);
|
||||
btrfs_set_disk_key_offset(&disk_key, ref_root);
|
||||
btrfs_set_disk_key_type(&disk_key, BTRFS_TREE_BLOCK_REF_KEY);
|
||||
btrfs_set_item_key(buf, &disk_key, nritems);
|
||||
@ -385,22 +385,22 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
|
||||
btrfs_set_item_size(buf, btrfs_item_nr(nritems), 0);
|
||||
nritems++;
|
||||
}
|
||||
btrfs_set_header_bytenr(buf, blocks[2]);
|
||||
btrfs_set_header_bytenr(buf, cfg->blocks[2]);
|
||||
btrfs_set_header_owner(buf, BTRFS_EXTENT_TREE_OBJECTID);
|
||||
btrfs_set_header_nritems(buf, nritems);
|
||||
csum_tree_block_size(buf, BTRFS_CRC32_SIZE, 0);
|
||||
ret = pwrite(fd, buf->data, nodesize, blocks[2]);
|
||||
if (ret != nodesize) {
|
||||
ret = pwrite(fd, buf->data, cfg->nodesize, cfg->blocks[2]);
|
||||
if (ret != cfg->nodesize) {
|
||||
ret = (ret < 0 ? -errno : -EIO);
|
||||
goto out;
|
||||
}
|
||||
|
||||
/* create the chunk tree */
|
||||
memset(buf->data + sizeof(struct btrfs_header), 0,
|
||||
nodesize - sizeof(struct btrfs_header));
|
||||
cfg->nodesize - sizeof(struct btrfs_header));
|
||||
nritems = 0;
|
||||
item_size = sizeof(*dev_item);
|
||||
itemoff = __BTRFS_LEAF_DATA_SIZE(nodesize) - item_size;
|
||||
itemoff = __BTRFS_LEAF_DATA_SIZE(cfg->nodesize) - item_size;
|
||||
|
||||
/* first device 1 (there is no device 0) */
|
||||
btrfs_set_disk_key_objectid(&disk_key, BTRFS_DEV_ITEMS_OBJECTID);
|
||||
@ -416,9 +416,9 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
|
||||
btrfs_set_device_total_bytes(buf, dev_item, num_bytes);
|
||||
btrfs_set_device_bytes_used(buf, dev_item,
|
||||
BTRFS_MKFS_SYSTEM_GROUP_SIZE);
|
||||
btrfs_set_device_io_align(buf, dev_item, sectorsize);
|
||||
btrfs_set_device_io_width(buf, dev_item, sectorsize);
|
||||
btrfs_set_device_sector_size(buf, dev_item, sectorsize);
|
||||
btrfs_set_device_io_align(buf, dev_item, cfg->sectorsize);
|
||||
btrfs_set_device_io_width(buf, dev_item, cfg->sectorsize);
|
||||
btrfs_set_device_sector_size(buf, dev_item, cfg->sectorsize);
|
||||
btrfs_set_device_type(buf, dev_item, 0);
|
||||
|
||||
write_extent_buffer(buf, super.dev_item.uuid,
|
||||
@ -447,9 +447,9 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
|
||||
btrfs_set_chunk_owner(buf, chunk, BTRFS_EXTENT_TREE_OBJECTID);
|
||||
btrfs_set_chunk_stripe_len(buf, chunk, 64 * 1024);
|
||||
btrfs_set_chunk_type(buf, chunk, BTRFS_BLOCK_GROUP_SYSTEM);
|
||||
btrfs_set_chunk_io_align(buf, chunk, sectorsize);
|
||||
btrfs_set_chunk_io_width(buf, chunk, sectorsize);
|
||||
btrfs_set_chunk_sector_size(buf, chunk, sectorsize);
|
||||
btrfs_set_chunk_io_align(buf, chunk, cfg->sectorsize);
|
||||
btrfs_set_chunk_io_width(buf, chunk, cfg->sectorsize);
|
||||
btrfs_set_chunk_sector_size(buf, chunk, cfg->sectorsize);
|
||||
btrfs_set_chunk_num_stripes(buf, chunk, 1);
|
||||
btrfs_set_stripe_devid_nr(buf, chunk, 0, 1);
|
||||
btrfs_set_stripe_offset_nr(buf, chunk, 0, 0);
|
||||
@ -472,21 +472,21 @@ int make_btrfs(int fd, const char *device, const char *label, char *fs_uuid,
|
||||
ptr += item_size;
|
||||
btrfs_set_super_sys_array_size(&super, array_size);
|
||||
|
||||
btrfs_set_header_bytenr(buf, blocks[3]);
|
||||
btrfs_set_header_bytenr(buf, cfg->blocks[3]);
|
||||
btrfs_set_header_owner(buf, BTRFS_CHUNK_TREE_OBJECTID);
|
||||
btrfs_set_header_nritems(buf, nritems);
|
||||
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
Block a user