* Boston, MA 021110-1307, USA.
*/
-#define _XOPEN_SOURCE 500
-#define _GNU_SOURCE
-
#include "kerncompat.h"
#include <sys/ioctl.h>
#include <getopt.h>
#include <uuid/uuid.h>
#include <ctype.h>
-#include <attr/xattr.h>
+#include <sys/xattr.h>
+#include <limits.h>
+#include <linux/limits.h>
#include <blkid/blkid.h>
#include <ftw.h>
#include "ctree.h"
#include "volumes.h"
#include "transaction.h"
#include "utils.h"
-#include "version.h"
static u64 index_cnt = 2;
+static int verbose = 1;
struct directory_name_entry {
char *dir_name;
struct list_head list;
};
-static int make_root_dir(struct btrfs_root *root, int mixed)
+struct mkfs_allocation {
+ u64 data;
+ u64 metadata;
+ u64 mixed;
+ u64 system;
+};
+
+static int make_root_dir(struct btrfs_root *root, int mixed,
+ struct mkfs_allocation *allocation)
{
struct btrfs_trans_handle *trans;
struct btrfs_key location;
BTRFS_BLOCK_GROUP_SYSTEM,
BTRFS_FIRST_CHUNK_TREE_OBJECTID,
0, BTRFS_MKFS_SYSTEM_GROUP_SIZE);
+ allocation->system += BTRFS_MKFS_SYSTEM_GROUP_SIZE;
BUG_ON(ret);
if (mixed) {
BTRFS_FIRST_CHUNK_TREE_OBJECTID,
chunk_start, chunk_size);
BUG_ON(ret);
- printf("Created a data/metadata chunk of size %llu\n", chunk_size);
+ allocation->mixed += chunk_size;
} else {
ret = btrfs_alloc_chunk(trans, root->fs_info->extent_root,
&chunk_start, &chunk_size,
BTRFS_BLOCK_GROUP_METADATA,
BTRFS_FIRST_CHUNK_TREE_OBJECTID,
chunk_start, chunk_size);
+ allocation->metadata += chunk_size;
BUG_ON(ret);
}
BTRFS_BLOCK_GROUP_DATA,
BTRFS_FIRST_CHUNK_TREE_OBJECTID,
chunk_start, chunk_size);
+ allocation->data += chunk_size;
BUG_ON(ret);
}
struct extent_buffer *tmp;
if (trans->transid != btrfs_root_generation(&root->root_item)) {
+ extent_buffer_get(root->node);
ret = __btrfs_cow_block(trans, root, root->node,
NULL, 0, &tmp, 0, 0);
BUG_ON(ret);
}
static int create_one_raid_group(struct btrfs_trans_handle *trans,
- struct btrfs_root *root, u64 type)
+ struct btrfs_root *root, u64 type,
+ struct mkfs_allocation *allocation)
+
{
u64 chunk_start;
u64 chunk_size;
ret = btrfs_make_block_group(trans, root->fs_info->extent_root, 0,
type, BTRFS_FIRST_CHUNK_TREE_OBJECTID,
chunk_start, chunk_size);
+ if ((type & BTRFS_BLOCK_GROUP_TYPE_MASK) == BTRFS_BLOCK_GROUP_DATA)
+ allocation->data += chunk_size;
+ else if ((type & BTRFS_BLOCK_GROUP_TYPE_MASK) == BTRFS_BLOCK_GROUP_METADATA)
+ allocation->metadata += chunk_size;
+ else if ((type & BTRFS_BLOCK_GROUP_TYPE_MASK) == BTRFS_BLOCK_GROUP_SYSTEM)
+ allocation->system += chunk_size;
+ else if ((type & BTRFS_BLOCK_GROUP_TYPE_MASK) ==
+ (BTRFS_BLOCK_GROUP_METADATA|BTRFS_BLOCK_GROUP_DATA))
+ allocation->mixed += chunk_size;
+ else
+ BUG_ON(1);
+
BUG_ON(ret);
return ret;
}
static int create_raid_groups(struct btrfs_trans_handle *trans,
struct btrfs_root *root, u64 data_profile,
int data_profile_opt, u64 metadata_profile,
- int metadata_profile_opt, int mixed, int ssd)
+ int mixed,
+ struct mkfs_allocation *allocation)
{
u64 num_devices = btrfs_super_num_devices(root->fs_info->super_copy);
int ret;
ret = create_one_raid_group(trans, root,
BTRFS_BLOCK_GROUP_SYSTEM |
- metadata_profile);
+ metadata_profile, allocation);
BUG_ON(ret);
if (mixed)
meta_flags |= BTRFS_BLOCK_GROUP_DATA;
ret = create_one_raid_group(trans, root, meta_flags |
- metadata_profile);
+ metadata_profile, allocation);
BUG_ON(ret);
}
if (!mixed && num_devices > 1 && data_profile) {
ret = create_one_raid_group(trans, root,
BTRFS_BLOCK_GROUP_DATA |
- data_profile);
+ data_profile, allocation);
BUG_ON(ret);
}
recow_roots(trans, root);
return 0;
}
-
-static void print_usage(void) __attribute__((noreturn));
-static void print_usage(void)
+static void print_usage(int ret)
{
fprintf(stderr, "usage: mkfs.btrfs [options] dev [ dev ... ]\n");
fprintf(stderr, "options:\n");
- fprintf(stderr, "\t -A --alloc-start the offset to start the FS\n");
- fprintf(stderr, "\t -b --byte-count total number of bytes in the FS\n");
- fprintf(stderr, "\t -d --data data profile, raid0, raid1, raid5, raid6, raid10, dup or single\n");
- fprintf(stderr, "\t -f --force force overwrite of existing filesystem\n");
- fprintf(stderr, "\t -l --leafsize size of btree leaves\n");
- fprintf(stderr, "\t -L --label set a label\n");
- fprintf(stderr, "\t -m --metadata metadata profile, values like data profile\n");
- fprintf(stderr, "\t -M --mixed mix metadata and data together\n");
- fprintf(stderr, "\t -n --nodesize size of btree nodes\n");
- fprintf(stderr, "\t -s --sectorsize min block allocation (may not mountable by current kernel)\n");
- fprintf(stderr, "\t -r --rootdir the source directory\n");
- fprintf(stderr, "\t -K --nodiscard do not perform whole device TRIM\n");
- fprintf(stderr, "\t -O --features comma separated list of filesystem features\n");
- fprintf(stderr, "\t -V --version print the mkfs.btrfs version and exit\n");
- fprintf(stderr, "%s\n", BTRFS_BUILD_VERSION);
- exit(1);
+ fprintf(stderr, "\t-A|--alloc-start START the offset to start the FS\n");
+ fprintf(stderr, "\t-b|--byte-count SIZE total number of bytes in the FS\n");
+ fprintf(stderr, "\t-d|--data PROFILE data profile, raid0, raid1, raid5, raid6, raid10, dup or single\n");
+ fprintf(stderr, "\t-f|--force force overwrite of existing filesystem\n");
+ fprintf(stderr, "\t-l|--leafsize SIZE deprecated, alias for nodesize\n");
+ fprintf(stderr, "\t-L|--label LABEL set a label\n");
+ fprintf(stderr, "\t-m|--metadata PROFILE metadata profile, values like data profile\n");
+ fprintf(stderr, "\t-M|--mixed mix metadata and data together\n");
+ fprintf(stderr, "\t-n|--nodesize SIZE size of btree nodes\n");
+ fprintf(stderr, "\t-s|--sectorsize SIZE min block allocation (may not mountable by current kernel)\n");
+ fprintf(stderr, "\t-r|--rootdir DIR the source directory\n");
+ fprintf(stderr, "\t-K|--nodiscard do not perform whole device TRIM\n");
+ fprintf(stderr, "\t-O|--features LIST comma separated list of filesystem features, use '-O list-all' to list features\n");
+ fprintf(stderr, "\t-U|--uuid UUID specify the filesystem UUID\n");
+ fprintf(stderr, "\t-q|--quiet no messages except errors\n");
+ fprintf(stderr, "\t-V|--version print the mkfs.btrfs version and exit\n");
+ fprintf(stderr, "%s\n", PACKAGE_STRING);
+ exit(ret);
}
static void print_version(void) __attribute__((noreturn));
static void print_version(void)
{
- fprintf(stderr, "mkfs.btrfs, part of %s\n", BTRFS_BUILD_VERSION);
+ fprintf(stderr, "mkfs.btrfs, part of %s\n", PACKAGE_STRING);
exit(0);
}
{
if (strcmp(s, "raid0") == 0) {
return BTRFS_BLOCK_GROUP_RAID0;
- } else if (strcmp(s, "raid1") == 0) {
+ } else if (strcasecmp(s, "raid1") == 0) {
return BTRFS_BLOCK_GROUP_RAID1;
- } else if (strcmp(s, "raid5") == 0) {
+ } else if (strcasecmp(s, "raid5") == 0) {
return BTRFS_BLOCK_GROUP_RAID5;
- } else if (strcmp(s, "raid6") == 0) {
+ } else if (strcasecmp(s, "raid6") == 0) {
return BTRFS_BLOCK_GROUP_RAID6;
- } else if (strcmp(s, "raid10") == 0) {
+ } else if (strcasecmp(s, "raid10") == 0) {
return BTRFS_BLOCK_GROUP_RAID10;
- } else if (strcmp(s, "dup") == 0) {
+ } else if (strcasecmp(s, "dup") == 0) {
return BTRFS_BLOCK_GROUP_DUP;
- } else if (strcmp(s, "single") == 0) {
+ } else if (strcasecmp(s, "single") == 0) {
return 0;
} else {
fprintf(stderr, "Unknown profile %s\n", s);
- print_usage();
}
/* not reached */
return 0;
return strdup(input);
}
-static struct option long_options[] = {
- { "alloc-start", 1, NULL, 'A'},
- { "byte-count", 1, NULL, 'b' },
- { "force", 0, NULL, 'f' },
- { "leafsize", 1, NULL, 'l' },
- { "label", 1, NULL, 'L'},
- { "metadata", 1, NULL, 'm' },
- { "mixed", 0, NULL, 'M' },
- { "nodesize", 1, NULL, 'n' },
- { "sectorsize", 1, NULL, 's' },
- { "data", 1, NULL, 'd' },
- { "version", 0, NULL, 'V' },
- { "rootdir", 1, NULL, 'r' },
- { "nodiscard", 0, NULL, 'K' },
- { "features", 0, NULL, 'O' },
- { NULL, 0, NULL, 0}
-};
-
static int add_directory_items(struct btrfs_trans_handle *trans,
struct btrfs_root *root, u64 objectid,
ino_t parent_inum, const char *name,
ret = btrfs_insert_dir_item(trans, root, name, name_len,
parent_inum, &location,
filetype, index_cnt);
-
+ if (ret)
+ return ret;
+ ret = btrfs_insert_inode_ref(trans, root, name, name_len,
+ objectid, parent_inum, index_cnt);
*dir_index_cnt = index_cnt;
index_cnt++;
struct btrfs_inode_item btrfs_inode;
u64 objectid;
u64 inode_size = 0;
- int name_len;
- name_len = strlen(name);
fill_inode_item(trans, root, &btrfs_inode, st);
objectid = self_objectid;
btrfs_set_key_type(&inode_key, BTRFS_INODE_ITEM_KEY);
ret = btrfs_insert_inode(trans, root, objectid, &btrfs_inode);
- if (ret)
- goto fail;
-
- ret = btrfs_insert_inode_ref(trans, root, name, name_len,
- objectid, parent_inum, dir_index_cnt);
- if (ret)
- goto fail;
*inode_ret = btrfs_inode;
-fail:
return ret;
}
return ret;
}
-static int custom_alloc_extent(struct btrfs_root *root, u64 num_bytes,
- u64 hint_byte, struct btrfs_key *ins)
-{
- u64 start;
- u64 end;
- u64 last = hint_byte;
- int ret;
- int wrapped = 0;
- struct btrfs_block_group_cache *cache;
-
- while (1) {
- ret = find_first_extent_bit(&root->fs_info->free_space_cache,
- last, &start, &end, EXTENT_DIRTY);
- if (ret) {
- if (wrapped++ == 0) {
- last = 0;
- continue;
- } else {
- goto fail;
- }
- }
-
- start = max(last, start);
- last = end + 1;
- if (last - start < num_bytes)
- continue;
-
- last = start + num_bytes;
- if (test_range_bit(&root->fs_info->pinned_extents,
- start, last - 1, EXTENT_DIRTY, 0))
- continue;
-
- cache = btrfs_lookup_block_group(root->fs_info, start);
- BUG_ON(!cache);
- if (cache->flags & BTRFS_BLOCK_GROUP_SYSTEM ||
- last > cache->key.objectid + cache->key.offset) {
- last = cache->key.objectid + cache->key.offset;
- continue;
- }
-
- if (cache->flags & (BTRFS_BLOCK_GROUP_SYSTEM |
- BTRFS_BLOCK_GROUP_METADATA)) {
- last = cache->key.objectid + cache->key.offset;
- continue;
- }
-
- clear_extent_dirty(&root->fs_info->free_space_cache,
- start, start + num_bytes - 1, 0);
-
- ins->objectid = start;
- ins->offset = num_bytes;
- ins->type = BTRFS_EXTENT_ITEM_KEY;
- return 0;
- }
-fail:
- fprintf(stderr, "not enough free space\n");
- return -ENOSPC;
-}
-
-static int record_file_extent(struct btrfs_trans_handle *trans,
- struct btrfs_root *root, u64 objectid,
- struct btrfs_inode_item *inode,
- u64 file_pos, u64 disk_bytenr,
- u64 num_bytes)
-{
- int ret;
- struct btrfs_fs_info *info = root->fs_info;
- struct btrfs_root *extent_root = info->extent_root;
- struct extent_buffer *leaf;
- struct btrfs_file_extent_item *fi;
- struct btrfs_key ins_key;
- struct btrfs_path path;
- struct btrfs_extent_item *ei;
-
- btrfs_init_path(&path);
-
- ins_key.objectid = objectid;
- ins_key.offset = 0;
- btrfs_set_key_type(&ins_key, BTRFS_EXTENT_DATA_KEY);
- ret = btrfs_insert_empty_item(trans, root, &path, &ins_key,
- sizeof(*fi));
- if (ret)
- goto fail;
- leaf = path.nodes[0];
- fi = btrfs_item_ptr(leaf, path.slots[0],
- struct btrfs_file_extent_item);
- btrfs_set_file_extent_generation(leaf, fi, trans->transid);
- btrfs_set_file_extent_type(leaf, fi, BTRFS_FILE_EXTENT_REG);
- btrfs_set_file_extent_disk_bytenr(leaf, fi, disk_bytenr);
- btrfs_set_file_extent_disk_num_bytes(leaf, fi, num_bytes);
- btrfs_set_file_extent_offset(leaf, fi, 0);
- btrfs_set_file_extent_num_bytes(leaf, fi, num_bytes);
- btrfs_set_file_extent_ram_bytes(leaf, fi, num_bytes);
- btrfs_set_file_extent_compression(leaf, fi, 0);
- btrfs_set_file_extent_encryption(leaf, fi, 0);
- btrfs_set_file_extent_other_encoding(leaf, fi, 0);
- btrfs_mark_buffer_dirty(leaf);
-
- btrfs_release_path(&path);
-
- ins_key.objectid = disk_bytenr;
- ins_key.offset = num_bytes;
- ins_key.type = BTRFS_EXTENT_ITEM_KEY;
-
- ret = btrfs_insert_empty_item(trans, extent_root, &path,
- &ins_key, sizeof(*ei));
- if (ret == 0) {
- leaf = path.nodes[0];
- ei = btrfs_item_ptr(leaf, path.slots[0],
- struct btrfs_extent_item);
-
- btrfs_set_extent_refs(leaf, ei, 0);
- btrfs_set_extent_generation(leaf, ei, trans->transid);
- btrfs_set_extent_flags(leaf, ei, BTRFS_EXTENT_FLAG_DATA);
-
- btrfs_mark_buffer_dirty(leaf);
- ret = btrfs_update_block_group(trans, root, disk_bytenr,
- num_bytes, 1, 0);
- if (ret)
- goto fail;
- } else if (ret != -EEXIST) {
- goto fail;
- }
-
- ret = btrfs_inc_extent_ref(trans, root, disk_bytenr, num_bytes, 0,
- root->root_key.objectid,
- objectid, 0);
-fail:
- btrfs_release_path(&path);
- return ret;
-}
static int add_symbolic_link(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
int ret = -1;
ssize_t ret_read;
u64 bytes_read = 0;
- char *buffer = NULL;
struct btrfs_key key;
int blocks;
u32 sectorsize = root->sectorsize;
u64 first_block = 0;
- u64 num_blocks = 0;
+ u64 file_pos = 0;
+ u64 cur_bytes;
+ u64 total_bytes;
+ struct extent_buffer *eb = NULL;
int fd;
+ if (st->st_size == 0)
+ return 0;
+
fd = open(path_name, O_RDONLY);
if (fd == -1) {
fprintf(stderr, "%s open failed\n", path_name);
blocks += 1;
if (st->st_size <= BTRFS_MAX_INLINE_DATA_SIZE(root)) {
- buffer = malloc(st->st_size);
+ char *buffer = malloc(st->st_size);
ret_read = pread64(fd, buffer, st->st_size, bytes_read);
if (ret_read == -1) {
fprintf(stderr, "%s read failed\n", path_name);
+ free(buffer);
goto end;
}
ret = btrfs_insert_inline_extent(trans, root, objectid, 0,
buffer, st->st_size);
+ free(buffer);
+ goto end;
+ }
+
+ /* round up our st_size to the FS blocksize */
+ total_bytes = (u64)blocks * sectorsize;
+
+ /*
+ * do our IO in extent buffers so it can work
+ * against any raid type
+ */
+ eb = malloc(sizeof(*eb) + sectorsize);
+ if (!eb) {
+ ret = -ENOMEM;
goto end;
}
+ memset(eb, 0, sizeof(*eb) + sectorsize);
- ret = custom_alloc_extent(root, blocks * sectorsize, 0, &key);
+again:
+
+ /*
+ * keep our extent size at 1MB max, this makes it easier to work inside
+ * the tiny block groups created during mkfs
+ */
+ cur_bytes = min(total_bytes, 1024ULL * 1024);
+ ret = btrfs_reserve_extent(trans, root, cur_bytes, 0, 0, (u64)-1,
+ &key, 1);
if (ret)
goto end;
first_block = key.objectid;
bytes_read = 0;
- buffer = malloc(sectorsize);
- do {
- memset(buffer, 0, sectorsize);
- ret_read = pread64(fd, buffer, sectorsize, bytes_read);
+ while (bytes_read < cur_bytes) {
+
+ memset(eb->data, 0, sectorsize);
+
+ ret_read = pread64(fd, eb->data, sectorsize, file_pos + bytes_read);
if (ret_read == -1) {
fprintf(stderr, "%s read failed\n", path_name);
goto end;
}
- ret = pwrite64(out_fd, buffer, sectorsize,
- first_block + bytes_read);
- if (ret != sectorsize) {
- fprintf(stderr, "output file write failed\n");
- goto end;
- }
+ eb->start = first_block + bytes_read;
+ eb->len = sectorsize;
- /* checksum for file data */
+ /*
+ * we're doing the csum before we record the extent, but
+ * that's ok
+ */
ret = btrfs_csum_file_block(trans, root->fs_info->csum_root,
- first_block + (blocks * sectorsize),
- first_block + bytes_read,
- buffer, sectorsize);
+ first_block + bytes_read + sectorsize,
+ first_block + bytes_read,
+ eb->data, sectorsize);
+ if (ret)
+ goto end;
+
+ ret = write_and_map_eb(trans, root, eb);
if (ret) {
- fprintf(stderr, "%s checksum failed\n", path_name);
+ fprintf(stderr, "output file write failed\n");
goto end;
}
- bytes_read += ret_read;
- num_blocks++;
- } while (ret_read == sectorsize);
+ bytes_read += sectorsize;
+ }
- if (num_blocks > 0) {
- ret = record_file_extent(trans, root, objectid, btrfs_inode,
- first_block, first_block,
- blocks * sectorsize);
+ if (bytes_read) {
+ ret = btrfs_record_file_extent(trans, root, objectid, btrfs_inode,
+ file_pos, first_block, cur_bytes);
if (ret)
goto end;
+
}
+ file_pos += cur_bytes;
+ total_bytes -= cur_bytes;
+
+ if (total_bytes)
+ goto again;
+
end:
- if (buffer)
- free(buffer);
+ free(eb);
close(fd);
return ret;
}
ino_t parent_inum, cur_inum;
ino_t highest_inum = 0;
char *parent_dir_name;
+ char real_path[PATH_MAX];
struct btrfs_path path;
struct extent_buffer *leaf;
struct btrfs_key root_dir_key;
/* Add list for source directory */
dir_entry = malloc(sizeof(struct directory_name_entry));
dir_entry->dir_name = dir_name;
- dir_entry->path = strdup(dir_name);
+ dir_entry->path = realpath(dir_name, real_path);
+ if (!dir_entry->path) {
+ fprintf(stderr, "get directory real path error\n");
+ ret = -1;
+ goto fail_no_dir;
+ }
parent_inum = highest_inum + BTRFS_FIRST_FREE_OBJECTID;
dir_entry->inum = parent_inum;
ret = btrfs_lookup_inode(trans, root, &path, &root_dir_key, 1);
if (ret) {
fprintf(stderr, "root dir lookup error\n");
- return -1;
+ goto fail_no_dir;
}
leaf = path.nodes[0];
if (chdir(parent_dir_entry->path)) {
fprintf(stderr, "chdir error for %s\n",
parent_dir_name);
+ ret = -1;
goto fail_no_files;
}
{
fprintf(stderr, "scandir for %s failed: %s\n",
parent_dir_name, strerror (errno));
+ ret = -1;
goto fail;
}
if (lstat(cur_file->d_name, &st) == -1) {
fprintf(stderr, "lstat failed for file %s\n",
cur_file->d_name);
+ ret = -1;
goto fail;
}
- cur_inum = ++highest_inum + BTRFS_FIRST_FREE_OBJECTID;
+ cur_inum = st.st_ino;
ret = add_directory_items(trans, root,
cur_inum, parent_inum,
cur_file->d_name,
cur_file->d_name, cur_inum,
parent_inum, dir_index_cnt,
&cur_inode);
+ if (ret == -EEXIST) {
+ BUG_ON(st.st_nlink <= 1);
+ continue;
+ }
if (ret) {
fprintf(stderr, "add_inode_items failed\n");
goto fail;
}
free_namelist(files, count);
- free(parent_dir_entry->path);
free(parent_dir_entry);
index_cnt = 2;
} while (!list_empty(&dir_head->list));
- return 0;
+out:
+ return !!ret;
fail:
free_namelist(files, count);
fail_no_files:
- free(parent_dir_entry->path);
free(parent_dir_entry);
- return -1;
+ goto out;
+fail_no_dir:
+ free(dir_entry);
+ goto out;
}
static int open_target(char *output_name)
static int create_chunks(struct btrfs_trans_handle *trans,
struct btrfs_root *root, u64 num_of_meta_chunks,
- u64 size_of_data)
+ u64 size_of_data,
+ struct mkfs_allocation *allocation)
{
u64 chunk_start;
u64 chunk_size;
ret = btrfs_make_block_group(trans, root->fs_info->extent_root, 0,
meta_type, BTRFS_FIRST_CHUNK_TREE_OBJECTID,
chunk_start, chunk_size);
+ allocation->metadata += chunk_size;
BUG_ON(ret);
set_extent_dirty(&root->fs_info->free_space_cache,
chunk_start, chunk_start + chunk_size - 1, 0);
if (size_of_data < minimum_data_chunk_size)
size_of_data = minimum_data_chunk_size;
+
ret = btrfs_alloc_data_chunk(trans, root->fs_info->extent_root,
&chunk_start, size_of_data, data_type);
BUG_ON(ret);
ret = btrfs_make_block_group(trans, root->fs_info->extent_root, 0,
data_type, BTRFS_FIRST_CHUNK_TREE_OBJECTID,
chunk_start, size_of_data);
+ allocation->data += size_of_data;
BUG_ON(ret);
set_extent_dirty(&root->fs_info->free_space_cache,
chunk_start, chunk_start + size_of_data - 1, 0);
ret = lstat(source_dir, &root_st);
if (ret) {
fprintf(stderr, "unable to lstat the %s\n", source_dir);
- goto fail;
+ goto out;
}
INIT_LIST_HEAD(&dir_head.list);
}
btrfs_commit_transaction(trans, root);
- printf("Making image is completed.\n");
+ if (verbose)
+ printf("Making image is completed.\n");
return 0;
fail:
while (!list_empty(&dir_head.list)) {
list_del(&dir_entry->list);
free(dir_entry);
}
+out:
fprintf(stderr, "Making image is aborted.\n");
return -1;
}
u64 allocated_meta_size = 8 * 1024 * 1024; /* 8MB */
u64 allocated_total_size = 20 * 1024 * 1024; /* 20MB */
u64 num_of_meta_chunks = 0;
+ u64 num_of_data_chunks = 0;
u64 num_of_allocated_meta_chunks =
allocated_meta_size / default_chunk_size;
exit(1);
}
+ num_of_data_chunks = (dir_size + default_chunk_size - 1) /
+ default_chunk_size;
+
num_of_meta_chunks = (dir_size / 2) / default_chunk_size;
if (((dir_size / 2) % default_chunk_size) != 0)
num_of_meta_chunks++;
else
num_of_meta_chunks -= num_of_allocated_meta_chunks;
- total_size = allocated_total_size + dir_size +
+ total_size = allocated_total_size +
+ (num_of_data_chunks * default_chunk_size) +
(num_of_meta_chunks * default_chunk_size);
*num_of_meta_chunks_ret = num_of_meta_chunks;
-
+ *size_of_data_ret = num_of_data_chunks * default_chunk_size;
return total_size;
}
return ret;
}
-static int check_leaf_or_node_size(u32 size, u32 sectorsize)
-{
- if (size < sectorsize) {
- fprintf(stderr,
- "Illegal leafsize (or nodesize) %u (smaller than %u)\n",
- size, sectorsize);
- return -1;
- } else if (size > BTRFS_MAX_METADATA_BLOCKSIZE) {
- fprintf(stderr,
- "Illegal leafsize (or nodesize) %u (larger than %u)\n",
- size, BTRFS_MAX_METADATA_BLOCKSIZE);
- return -1;
- } else if (size & (sectorsize - 1)) {
- fprintf(stderr,
- "Illegal leafsize (or nodesize) %u (not align to %u)\n",
- size, sectorsize);
- return -1;
- }
- return 0;
-}
-
static int is_ssd(const char *file)
{
blkid_probe probe;
return !atoi((const char *)&rotational);
}
-#define BTRFS_FEATURE_LIST_ALL (1ULL << 63)
-
-static const struct btrfs_fs_feature {
- const char *name;
- u64 flag;
- const char *desc;
-} mkfs_features[] = {
- { "mixed-bg", BTRFS_FEATURE_INCOMPAT_MIXED_GROUPS,
- "mixed data and metadata block groups" },
- { "extref", BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF,
- "increased hardlink limit per file to 65536" },
- { "raid56", BTRFS_FEATURE_INCOMPAT_RAID56,
- "raid56 extended format" },
- { "skinny-metadata", BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA,
- "reduced-size metadata extent refs" },
- /* Keep this one last */
- { "list-all", BTRFS_FEATURE_LIST_ALL, NULL }
-};
-
-static void list_all_fs_features(void)
-{
- int i;
-
- fprintf(stderr, "Filesystem features available at mkfs time:\n");
- for (i = 0; i < ARRAY_SIZE(mkfs_features) - 1; i++) {
- fprintf(stderr, "%-20s- %s (0x%llx)\n",
- mkfs_features[i].name,
- mkfs_features[i].desc,
- mkfs_features[i].flag);
- }
-}
-
-static int parse_one_fs_feature(const char *name, u64 *flags)
-{
- int i;
- int found = 0;
-
- for (i = 0; i < ARRAY_SIZE(mkfs_features); i++) {
- if (!strcmp(mkfs_features[i].name, name)) {
- *flags |= mkfs_features[i].flag;
- found = 1;
- }
- }
-
- return !found;
-}
-
-static void process_fs_features(u64 flags)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(mkfs_features); i++) {
- if (flags & mkfs_features[i].flag) {
- fprintf(stderr,
- "Turning ON incompat feature '%s': %s\n",
- mkfs_features[i].name,
- mkfs_features[i].desc);
- }
- }
-}
-
-
-/*
- * Return NULL if all features were parsed fine, otherwise return the name of
- * the first unparsed.
- */
-static char* parse_fs_features(char *namelist, u64 *flags)
+static void list_all_devices(struct btrfs_root *root)
{
- char *this_char;
- char *save_ptr = NULL; /* Satisfy static checkers */
-
- for (this_char = strtok_r(namelist, ",", &save_ptr);
- this_char != NULL;
- this_char = strtok_r(NULL, ",", &save_ptr)) {
- if (parse_one_fs_feature(this_char, flags))
- return this_char;
+ struct btrfs_fs_devices *fs_devices;
+ struct btrfs_device *device;
+ int number_of_devices = 0;
+ u64 total_block_count = 0;
+
+ fs_devices = root->fs_info->fs_devices;
+
+ list_for_each_entry(device, &fs_devices->devices, dev_list)
+ number_of_devices++;
+
+ printf("Number of devices: %d\n", number_of_devices);
+ /* printf("Total devices size: %10s\n", */
+ /* pretty_size(total_block_count)); */
+ printf("Devices:\n");
+ printf(" ID SIZE PATH\n");
+ list_for_each_entry_reverse(device, &fs_devices->devices, dev_list) {
+ char dev_uuid[BTRFS_UUID_UNPARSED_SIZE];
+
+ uuid_unparse(device->uuid, dev_uuid);
+ printf(" %3llu %10s %s\n",
+ device->devid,
+ pretty_size(device->total_bytes),
+ device->name);
+ total_block_count += device->total_bytes;
}
- return NULL;
+ printf("\n");
}
int main(int ac, char **av)
struct btrfs_root *root;
struct btrfs_trans_handle *trans;
char *label = NULL;
- char *first_file;
u64 block_count = 0;
u64 dev_block_count = 0;
u64 blocks[7];
u64 alloc_start = 0;
u64 metadata_profile = 0;
u64 data_profile = 0;
- u32 leafsize = sysconf(_SC_PAGESIZE);
+ u32 nodesize = max_t(u32, sysconf(_SC_PAGESIZE),
+ BTRFS_MKFS_DEFAULT_NODE_SIZE);
u32 sectorsize = 4096;
- u32 nodesize = leafsize;
u32 stripesize = 4096;
int zero_end = 1;
- int option_index = 0;
int fd;
int ret;
int i;
int mixed = 0;
+ int nodesize_forced = 0;
int data_profile_opt = 0;
int metadata_profile_opt = 0;
- int nodiscard = 0;
+ int discard = 1;
int ssd = 0;
int force_overwrite = 0;
u64 source_dir_size = 0;
int dev_cnt = 0;
int saved_optind;
- char estr[100];
- u64 features = 0;
+ char fs_uuid[BTRFS_UUID_UNPARSED_SIZE] = { 0 };
+ u64 features = BTRFS_MKFS_DEFAULT_FEATURES;
+ struct mkfs_allocation allocation = { 0 };
while(1) {
int c;
- c = getopt_long(ac, av, "A:b:fl:n:s:m:d:L:O:r:VMK",
- long_options, &option_index);
+ static const struct option long_options[] = {
+ { "alloc-start", required_argument, NULL, 'A'},
+ { "byte-count", required_argument, NULL, 'b' },
+ { "force", no_argument, NULL, 'f' },
+ { "leafsize", required_argument, NULL, 'l' },
+ { "label", required_argument, NULL, 'L'},
+ { "metadata", required_argument, NULL, 'm' },
+ { "mixed", no_argument, NULL, 'M' },
+ { "nodesize", required_argument, NULL, 'n' },
+ { "sectorsize", required_argument, NULL, 's' },
+ { "data", required_argument, NULL, 'd' },
+ { "version", no_argument, NULL, 'V' },
+ { "rootdir", required_argument, NULL, 'r' },
+ { "nodiscard", no_argument, NULL, 'K' },
+ { "features", required_argument, NULL, 'O' },
+ { "uuid", required_argument, NULL, 'U' },
+ { "quiet", 0, NULL, 'q' },
+ { "help", no_argument, NULL, GETOPT_VAL_HELP },
+ { NULL, 0, NULL, 0}
+ };
+
+ c = getopt_long(ac, av, "A:b:fl:n:s:m:d:L:O:r:U:VMKq",
+ long_options, NULL);
if (c < 0)
break;
switch(c) {
data_profile_opt = 1;
break;
case 'l':
+ fprintf(stderr,
+ "WARNING: --leafsize is deprecated, use --nodesize\n");
case 'n':
nodesize = parse_size(optarg);
- leafsize = parse_size(optarg);
+ nodesize_forced = 1;
break;
case 'L':
label = parse_label(optarg);
char *orig = strdup(optarg);
char *tmp = orig;
- tmp = parse_fs_features(tmp, &features);
+ tmp = btrfs_parse_fs_features(tmp, &features);
if (tmp) {
fprintf(stderr,
"Unrecognized filesystem feature '%s'\n",
}
free(orig);
if (features & BTRFS_FEATURE_LIST_ALL) {
- list_all_fs_features();
+ btrfs_list_all_fs_features(0);
exit(0);
}
break;
break;
case 'b':
block_count = parse_size(optarg);
- if (block_count <= 1024*1024*1024) {
- printf("SMALL VOLUME: forcing mixed "
- "metadata/data groups\n");
+ if (block_count <= BTRFS_MKFS_SMALL_VOLUME_SIZE)
mixed = 1;
- }
zero_end = 0;
break;
case 'V':
source_dir = optarg;
source_dir_set = 1;
break;
+ case 'U':
+ strncpy(fs_uuid, optarg,
+ BTRFS_UUID_UNPARSED_SIZE - 1);
+ break;
case 'K':
- nodiscard=1;
+ discard = 0;
break;
+ case 'q':
+ verbose = 0;
+ break;
+ case GETOPT_VAL_HELP:
default:
- print_usage();
+ print_usage(c != GETOPT_VAL_HELP);
}
}
sectorsize = max(sectorsize, (u32)sysconf(_SC_PAGESIZE));
- if (check_leaf_or_node_size(leafsize, sectorsize))
- exit(1);
- if (check_leaf_or_node_size(nodesize, sectorsize))
+ if (btrfs_check_nodesize(nodesize, sectorsize))
exit(1);
saved_optind = optind;
dev_cnt = ac - optind;
if (dev_cnt == 0)
- print_usage();
+ print_usage(1);
if (source_dir_set && dev_cnt > 1) {
fprintf(stderr,
"The -r option is limited to a single device\n");
exit(1);
}
+
+ if (*fs_uuid) {
+ uuid_t dummy_uuid;
+
+ if (uuid_parse(fs_uuid, dummy_uuid) != 0) {
+ fprintf(stderr, "could not parse UUID: %s\n", fs_uuid);
+ exit(1);
+ }
+ if (!test_uuid_unique(fs_uuid)) {
+ fprintf(stderr, "non-unique UUID: %s\n", fs_uuid);
+ exit(1);
+ }
+ }
+
while (dev_cnt-- > 0) {
file = av[optind++];
if (is_block_device(file))
- if (test_dev_for_mkfs(file, force_overwrite, estr)) {
- fprintf(stderr, "Error: %s", estr);
+ if (test_dev_for_mkfs(file, force_overwrite))
exit(1);
- }
}
optind = saved_optind;
file = av[optind++];
ssd = is_ssd(file);
- if (is_vol_small(file)) {
- printf("SMALL VOLUME: forcing mixed metadata/data groups\n");
+ if (is_vol_small(file) || mixed) {
+ if (verbose)
+ printf("SMALL VOLUME: forcing mixed metadata/data groups\n");
mixed = 1;
- if (metadata_profile != data_profile) {
- if (metadata_profile_opt || data_profile_opt) {
- fprintf(stderr,
- "With mixed block groups data and metadata profiles must be the same\n");
- exit(1);
- }
- }
}
+
/*
* Set default profiles according to number of added devices.
* For mixed groups defaults are single/single.
*/
if (!mixed) {
if (!metadata_profile_opt) {
- if (dev_cnt == 1 && ssd)
+ if (dev_cnt == 1 && ssd && verbose)
printf("Detected a SSD, turning off metadata "
"duplication. Mkfs with -m dup if you want to "
"force metadata duplication.\n");
BTRFS_BLOCK_GROUP_RAID0 : 0; /* raid0 or single */
}
} else {
- metadata_profile = 0;
- data_profile = 0;
+ u32 best_nodesize = max_t(u32, sysconf(_SC_PAGESIZE), sectorsize);
+
+ if (metadata_profile_opt || data_profile_opt) {
+ if (metadata_profile != data_profile) {
+ fprintf(stderr,
+ "ERROR: With mixed block groups data and metadata profiles must be the same\n");
+ exit(1);
+ }
+ }
+
+ if (!nodesize_forced) {
+ nodesize = best_nodesize;
+ if (btrfs_check_nodesize(nodesize, sectorsize))
+ exit(1);
+ }
+ if (nodesize != sectorsize) {
+ fprintf(stderr, "Error: mixed metadata/data block groups "
+ "require metadata blocksizes equal to the sectorsize\n");
+ exit(1);
+ }
}
- ret = test_num_disk_vs_raid(metadata_profile, data_profile,
- dev_cnt, mixed, estr);
- if (ret) {
- fprintf(stderr, "Error: %s\n", estr);
+ /* Check device/block_count after the nodesize is determined */
+ if (block_count && block_count < btrfs_min_dev_size(nodesize)) {
+ fprintf(stderr,
+ "Size '%llu' is too small to make a usable filesystem\n",
+ block_count);
+ fprintf(stderr,
+ "Minimum size for btrfs filesystem is %llu\n",
+ btrfs_min_dev_size(nodesize));
exit(1);
}
+ for (i = saved_optind; i < saved_optind + dev_cnt; i++) {
+ char *path;
+
+ path = av[i];
+ ret = test_minimum_size(path, nodesize);
+ if (ret < 0) {
+ fprintf(stderr, "Failed to check size for '%s': %s\n",
+ path, strerror(-ret));
+ exit (1);
+ }
+ if (ret > 0) {
+ fprintf(stderr,
+ "'%s' is too small to make a usable filesystem\n",
+ path);
+ fprintf(stderr,
+ "Minimum size for each btrfs device is %llu.\n",
+ btrfs_min_dev_size(nodesize));
+ exit(1);
+ }
+ }
+ ret = test_num_disk_vs_raid(metadata_profile, data_profile,
+ dev_cnt, mixed);
+ if (ret)
+ exit(1);
/* if we are here that means all devs are good to btrfsify */
- printf("\nWARNING! - %s IS EXPERIMENTAL\n", BTRFS_BUILD_VERSION);
- printf("WARNING! - see http://btrfs.wiki.kernel.org before using\n\n");
+ if (verbose) {
+ printf("%s\n", PACKAGE_STRING);
+ printf("See %s for more information.\n\n", PACKAGE_URL);
+ }
dev_cnt--;
strerror(errno));
exit(1);
}
- first_file = file;
ret = btrfs_prepare_device(fd, file, zero_end, &dev_block_count,
- block_count, &mixed, nodiscard);
+ block_count, &mixed, discard);
+ if (ret) {
+ close(fd);
+ exit(1);
+ }
if (block_count && block_count > dev_block_count) {
fprintf(stderr, "%s is smaller than requested size\n", file);
exit(1);
exit(1);
}
- first_file = file;
source_dir_size = size_sourcedir(source_dir, sectorsize,
&num_of_meta_chunks, &size_of_data);
if(block_count < source_dir_size)
blocks[0] = BTRFS_SUPER_INFO_OFFSET;
for (i = 1; i < 7; i++) {
blocks[i] = BTRFS_SUPER_INFO_OFFSET + 1024 * 1024 +
- leafsize * i;
+ nodesize * i;
+ }
+
+ if (group_profile_max_safe_loss(metadata_profile) <
+ group_profile_max_safe_loss(data_profile)){
+ fprintf(stderr,
+ "WARNING: metatdata has lower redundancy than data!\n\n");
}
/*
features |= BTRFS_FEATURE_INCOMPAT_RAID56;
}
- process_fs_features(features);
-
- ret = make_btrfs(fd, file, label, blocks, dev_block_count,
- nodesize, leafsize,
- sectorsize, stripesize, features);
+ ret = make_btrfs(fd, file, label, fs_uuid, blocks, dev_block_count,
+ nodesize, sectorsize, stripesize, features);
if (ret) {
fprintf(stderr, "error during mkfs: %s\n", strerror(-ret));
exit(1);
}
- root = open_ctree(file, 0, O_RDWR);
+ root = open_ctree(file, 0, OPEN_CTREE_WRITES);
if (!root) {
fprintf(stderr, "Open ctree failed\n");
close(fd);
}
root->fs_info->alloc_start = alloc_start;
- ret = make_root_dir(root, mixed);
+ ret = make_root_dir(root, mixed, &allocation);
if (ret) {
fprintf(stderr, "failed to setup the root directory\n");
exit(1);
trans = btrfs_start_transaction(root, 1);
+ if (is_block_device(file))
+ btrfs_register_one_device(file);
+
if (dev_cnt == 0)
goto raid_groups;
- btrfs_register_one_device(file);
-
- zero_end = 1;
while (dev_cnt-- > 0) {
int old_mixed = mixed;
continue;
}
ret = btrfs_prepare_device(fd, file, zero_end, &dev_block_count,
- block_count, &mixed, nodiscard);
+ block_count, &mixed, discard);
+ if (ret) {
+ close(fd);
+ exit(1);
+ }
mixed = old_mixed;
- BUG_ON(ret);
ret = btrfs_add_to_fsid(trans, root, fd, file, dev_block_count,
sectorsize, sectorsize, sectorsize);
BUG_ON(ret);
- btrfs_register_one_device(file);
+ if (verbose >= 2) {
+ struct btrfs_device *device;
+
+ device = container_of(root->fs_info->fs_devices->devices.next,
+ struct btrfs_device, dev_list);
+ printf("adding device %s id %llu\n", file,
+ (unsigned long long)device->devid);
+ }
+
+ if (is_block_device(file))
+ btrfs_register_one_device(file);
}
raid_groups:
if (!source_dir_set) {
ret = create_raid_groups(trans, root, data_profile,
data_profile_opt, metadata_profile,
- metadata_profile_opt, mixed, ssd);
+ mixed, &allocation);
BUG_ON(ret);
}
ret = create_data_reloc_tree(trans, root);
BUG_ON(ret);
- printf("fs created label %s on %s\n\tnodesize %u leafsize %u "
- "sectorsize %u size %s\n",
- label, first_file, nodesize, leafsize, sectorsize,
- pretty_size(btrfs_super_total_bytes(root->fs_info->super_copy)));
-
- printf("%s\n", BTRFS_BUILD_VERSION);
btrfs_commit_transaction(trans, root);
if (source_dir_set) {
trans = btrfs_start_transaction(root, 1);
ret = create_chunks(trans, root,
- num_of_meta_chunks, size_of_data);
+ num_of_meta_chunks, size_of_data,
+ &allocation);
BUG_ON(ret);
btrfs_commit_transaction(trans, root);
BUG_ON(ret);
}
+ if (verbose) {
+ char features_buf[64];
+
+ printf("Label: %s\n", label);
+ printf("UUID: %s\n", fs_uuid);
+ printf("Node size: %u\n", nodesize);
+ printf("Sector size: %u\n", sectorsize);
+ printf("Filesystem size: %s\n",
+ pretty_size(btrfs_super_total_bytes(root->fs_info->super_copy)));
+ printf("Block group profiles:\n");
+ if (allocation.data)
+ printf(" Data: %-8s %16s\n",
+ btrfs_group_profile_str(data_profile),
+ pretty_size(allocation.data));
+ if (allocation.metadata)
+ printf(" Metadata: %-8s %16s\n",
+ btrfs_group_profile_str(metadata_profile),
+ pretty_size(allocation.metadata));
+ if (allocation.mixed)
+ printf(" Data+Metadata: %-8s %16s\n",
+ btrfs_group_profile_str(data_profile),
+ pretty_size(allocation.mixed));
+ printf(" System: %-8s %16s\n",
+ btrfs_group_profile_str(metadata_profile),
+ pretty_size(allocation.system));
+ printf("SSD detected: %s\n", ssd ? "yes" : "no");
+ btrfs_parse_features_to_string(features_buf, features);
+ printf("Incompat features: %s", features_buf);
+ printf("\n");
+
+ list_all_devices(root);
+ }
+
ret = close_ctree(root);
BUG_ON(ret);
free(label);
projects / platform / upstream / btrfs-progs.git / blobdiff