static void print_usage(int ret)
{
- printf("usage: mkfs.btrfs [options] dev [ dev ... ]\n");
- printf("options:\n");
- printf("\t-A|--alloc-start START the offset to start the FS\n");
- printf("\t-b|--byte-count SIZE total number of bytes in the FS\n");
+ printf("Usage: mkfs.btrfs [options] dev [ dev ... ]\n");
+ printf("Options:\n");
+ printf(" allocation profiles:\n");
printf("\t-d|--data PROFILE data profile, raid0, raid1, raid5, raid6, raid10, dup or single\n");
- printf("\t-f|--force force overwrite of existing filesystem\n");
- printf("\t-l|--leafsize SIZE deprecated, alias for nodesize\n");
- printf("\t-L|--label LABEL set a label\n");
- printf("\t-m|--metadata PROFILE metadata profile, values like data profile\n");
+ printf("\t-m|--metadata PROFILE metadata profile, values like for data profile\n");
printf("\t-M|--mixed mix metadata and data together\n");
+ printf(" features:\n");
printf("\t-n|--nodesize SIZE size of btree nodes\n");
- printf("\t-s|--sectorsize SIZE min block allocation (may not mountable by current kernel)\n");
- printf("\t-r|--rootdir DIR the source directory\n");
+ printf("\t-s|--sectorsize SIZE data block size (may not be mountable by current kernel)\n");
+ printf("\t-O|--features LIST comma separated list of filesystem features (use '-O list-all' to list features)\n");
+ printf("\t-L|--label LABEL set the filesystem label\n");
+ printf("\t-U|--uuid UUID specify the filesystem UUID (must be unique)\n");
+ printf(" creation:\n");
+ printf("\t-b|--byte-count SIZE set filesystem size to SIZE (on the first device)\n");
+ printf("\t-r|--rootdir DIR copy files from DIR to the image root directory\n");
printf("\t-K|--nodiscard do not perform whole device TRIM\n");
- printf("\t-O|--features LIST comma separated list of filesystem features, use '-O list-all' to list features\n");
- printf("\t-U|--uuid UUID specify the filesystem UUID\n");
+ printf("\t-f|--force force overwrite of existing filesystem\n");
+ printf(" general:\n");
printf("\t-q|--quiet no messages except errors\n");
printf("\t-V|--version print the mkfs.btrfs version and exit\n");
+ printf("\t--help print this help and exit\n");
+ printf(" deprecated:\n");
+ printf("\t-A|--alloc-start START the offset to start the filesytem\n");
+ printf("\t-l|--leafsize SIZE deprecated, alias for nodesize\n");
exit(ret);
}
static int directory_select(const struct direct *entry)
{
- if ((strncmp(entry->d_name, ".", entry->d_reclen) == 0) ||
- (strncmp(entry->d_name, "..", entry->d_reclen) == 0))
+ if (entry->d_name[0] == '.' &&
+ (entry->d_name[1] == 0 ||
+ (entry->d_name[1] == '.' && entry->d_name[2] == 0)))
return 0;
- else
- return 1;
+ return 1;
}
static void free_namelist(struct direct **files, int count)
struct btrfs_root *root = fs_info->extent_root;
struct btrfs_key key;
struct btrfs_key found_key;
- struct btrfs_path *path;
+ struct btrfs_path path;
int ret = 0;
- path = btrfs_alloc_path();
- if (!path) {
- ret = -ENOMEM;
- goto out;
- }
-
+ btrfs_init_path(&path);
trans = btrfs_start_transaction(root, 1);
key.objectid = 0;
* as the rest of the loop may modify the tree, we need to
* start a new search each time.
*/
- ret = btrfs_search_slot(trans, root, &key, path, 0, 0);
+ ret = btrfs_search_slot(trans, root, &key, &path, 0, 0);
if (ret < 0)
goto out;
- btrfs_item_key_to_cpu(path->nodes[0], &found_key,
- path->slots[0]);
+ btrfs_item_key_to_cpu(path.nodes[0], &found_key,
+ path.slots[0]);
if (found_key.objectid < key.objectid)
goto out;
if (found_key.type != BTRFS_BLOCK_GROUP_ITEM_KEY) {
- ret = next_block_group(root, path);
+ ret = next_block_group(root, &path);
if (ret < 0)
goto out;
if (ret > 0) {
ret = 0;
goto out;
}
- btrfs_item_key_to_cpu(path->nodes[0], &found_key,
- path->slots[0]);
+ btrfs_item_key_to_cpu(path.nodes[0], &found_key,
+ path.slots[0]);
}
- bgi = btrfs_item_ptr(path->nodes[0], path->slots[0],
+ bgi = btrfs_item_ptr(path.nodes[0], path.slots[0],
struct btrfs_block_group_item);
- if (is_temp_block_group(path->nodes[0], bgi,
+ if (is_temp_block_group(path.nodes[0], bgi,
data_profile, meta_profile,
sys_profile)) {
- u64 flags = btrfs_disk_block_group_flags(path->nodes[0],
+ u64 flags = btrfs_disk_block_group_flags(path.nodes[0],
bgi);
ret = btrfs_free_block_group(trans, fs_info,
BTRFS_BLOCK_GROUP_DATA))
alloc->mixed -= found_key.offset;
}
- btrfs_release_path(path);
+ btrfs_release_path(&path);
key.objectid = found_key.objectid + found_key.offset;
}
out:
if (trans)
btrfs_commit_transaction(trans, root);
- btrfs_free_path(path);
+ btrfs_release_path(&path);
return ret;
}
char features_buf[64];
printf("Label: %s\n", label);
- printf("UUID: %s\n", fs_uuid);
+ printf("UUID: %s\n", mkfs_cfg.fs_uuid);
printf("Node size: %u\n", nodesize);
printf("Sector size: %u\n", sectorsize);
printf("Filesystem size: %s\n",
projects / platform / upstream / btrfs-progs.git / blobdiff