2 * Copyright (C) 2007 Oracle. All rights reserved.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public
6 * License v2 as published by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public
14 * License along with this program; if not, write to the
15 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
16 * Boston, MA 021110-1307, USA.
19 #include "kerncompat.h"
20 #include "androidcompat.h"
22 #include <sys/ioctl.h>
23 #include <sys/mount.h>
27 #include <sys/types.h>
29 /* #include <sys/dir.h> included via androidcompat.h */
33 #include <uuid/uuid.h>
35 #include <sys/xattr.h>
37 #include <linux/limits.h>
38 #include <blkid/blkid.h>
43 #include "transaction.h"
45 #include "list_sort.h"
47 #include "mkfs/common.h"
48 #include "fsfeatures.h"
50 static u64 index_cnt = 2;
51 static int verbose = 1;
53 struct directory_name_entry {
57 struct list_head list;
60 struct mkfs_allocation {
67 static int create_metadata_block_groups(struct btrfs_root *root, int mixed,
68 struct mkfs_allocation *allocation)
70 struct btrfs_fs_info *fs_info = root->fs_info;
71 struct btrfs_trans_handle *trans;
77 trans = btrfs_start_transaction(root, 1);
78 bytes_used = btrfs_super_bytes_used(fs_info->super_copy);
80 root->fs_info->system_allocs = 1;
81 ret = btrfs_make_block_group(trans, fs_info, bytes_used,
82 BTRFS_BLOCK_GROUP_SYSTEM,
83 BTRFS_FIRST_CHUNK_TREE_OBJECTID,
84 0, BTRFS_MKFS_SYSTEM_GROUP_SIZE);
85 allocation->system += BTRFS_MKFS_SYSTEM_GROUP_SIZE;
90 ret = btrfs_alloc_chunk(trans, fs_info,
91 &chunk_start, &chunk_size,
92 BTRFS_BLOCK_GROUP_METADATA |
93 BTRFS_BLOCK_GROUP_DATA);
95 error("no space to allocate data/metadata chunk");
100 ret = btrfs_make_block_group(trans, fs_info, 0,
101 BTRFS_BLOCK_GROUP_METADATA |
102 BTRFS_BLOCK_GROUP_DATA,
103 BTRFS_FIRST_CHUNK_TREE_OBJECTID,
104 chunk_start, chunk_size);
107 allocation->mixed += chunk_size;
109 ret = btrfs_alloc_chunk(trans, fs_info,
110 &chunk_start, &chunk_size,
111 BTRFS_BLOCK_GROUP_METADATA);
112 if (ret == -ENOSPC) {
113 error("no space to allocate metadata chunk");
118 ret = btrfs_make_block_group(trans, fs_info, 0,
119 BTRFS_BLOCK_GROUP_METADATA,
120 BTRFS_FIRST_CHUNK_TREE_OBJECTID,
121 chunk_start, chunk_size);
122 allocation->metadata += chunk_size;
127 root->fs_info->system_allocs = 0;
128 ret = btrfs_commit_transaction(trans, root);
134 static int create_data_block_groups(struct btrfs_trans_handle *trans,
135 struct btrfs_root *root, int mixed,
136 struct mkfs_allocation *allocation)
138 struct btrfs_fs_info *fs_info = root->fs_info;
144 ret = btrfs_alloc_chunk(trans, fs_info,
145 &chunk_start, &chunk_size,
146 BTRFS_BLOCK_GROUP_DATA);
147 if (ret == -ENOSPC) {
148 error("no space to allocate data chunk");
153 ret = btrfs_make_block_group(trans, fs_info, 0,
154 BTRFS_BLOCK_GROUP_DATA,
155 BTRFS_FIRST_CHUNK_TREE_OBJECTID,
156 chunk_start, chunk_size);
157 allocation->data += chunk_size;
166 static int make_root_dir(struct btrfs_trans_handle *trans,
167 struct btrfs_root *root)
169 struct btrfs_key location;
172 ret = btrfs_make_root_dir(trans, root->fs_info->tree_root,
173 BTRFS_ROOT_TREE_DIR_OBJECTID);
176 ret = btrfs_make_root_dir(trans, root, BTRFS_FIRST_FREE_OBJECTID);
179 memcpy(&location, &root->fs_info->fs_root->root_key, sizeof(location));
180 location.offset = (u64)-1;
181 ret = btrfs_insert_dir_item(trans, root->fs_info->tree_root,
183 btrfs_super_root_dir(root->fs_info->super_copy),
184 &location, BTRFS_FT_DIR, 0);
188 ret = btrfs_insert_inode_ref(trans, root->fs_info->tree_root,
189 "default", 7, location.objectid,
190 BTRFS_ROOT_TREE_DIR_OBJECTID, 0);
198 static int __recow_root(struct btrfs_trans_handle *trans,
199 struct btrfs_root *root)
201 struct extent_buffer *tmp;
204 if (trans->transid != btrfs_root_generation(&root->root_item)) {
205 extent_buffer_get(root->node);
206 ret = __btrfs_cow_block(trans, root, root->node,
207 NULL, 0, &tmp, 0, 0);
210 free_extent_buffer(tmp);
216 static int recow_roots(struct btrfs_trans_handle *trans,
217 struct btrfs_root *root)
219 struct btrfs_fs_info *info = root->fs_info;
222 ret = __recow_root(trans, info->fs_root);
225 ret = __recow_root(trans, info->tree_root);
228 ret = __recow_root(trans, info->extent_root);
231 ret = __recow_root(trans, info->chunk_root);
234 ret = __recow_root(trans, info->dev_root);
237 ret = __recow_root(trans, info->csum_root);
244 static int create_one_raid_group(struct btrfs_trans_handle *trans,
245 struct btrfs_root *root, u64 type,
246 struct mkfs_allocation *allocation)
249 struct btrfs_fs_info *fs_info = root->fs_info;
254 ret = btrfs_alloc_chunk(trans, fs_info,
255 &chunk_start, &chunk_size, type);
256 if (ret == -ENOSPC) {
257 error("not enough free space to allocate chunk");
263 ret = btrfs_make_block_group(trans, fs_info, 0,
264 type, BTRFS_FIRST_CHUNK_TREE_OBJECTID,
265 chunk_start, chunk_size);
267 type &= BTRFS_BLOCK_GROUP_TYPE_MASK;
268 if (type == BTRFS_BLOCK_GROUP_DATA) {
269 allocation->data += chunk_size;
270 } else if (type == BTRFS_BLOCK_GROUP_METADATA) {
271 allocation->metadata += chunk_size;
272 } else if (type == BTRFS_BLOCK_GROUP_SYSTEM) {
273 allocation->system += chunk_size;
275 (BTRFS_BLOCK_GROUP_METADATA | BTRFS_BLOCK_GROUP_DATA)) {
276 allocation->mixed += chunk_size;
278 error("unrecognized profile type: 0x%llx",
279 (unsigned long long)type);
286 static int create_raid_groups(struct btrfs_trans_handle *trans,
287 struct btrfs_root *root, u64 data_profile,
288 u64 metadata_profile, int mixed,
289 struct mkfs_allocation *allocation)
293 if (metadata_profile) {
294 u64 meta_flags = BTRFS_BLOCK_GROUP_METADATA;
296 ret = create_one_raid_group(trans, root,
297 BTRFS_BLOCK_GROUP_SYSTEM |
298 metadata_profile, allocation);
303 meta_flags |= BTRFS_BLOCK_GROUP_DATA;
305 ret = create_one_raid_group(trans, root, meta_flags |
306 metadata_profile, allocation);
311 if (!mixed && data_profile) {
312 ret = create_one_raid_group(trans, root,
313 BTRFS_BLOCK_GROUP_DATA |
314 data_profile, allocation);
318 ret = recow_roots(trans, root);
323 static int create_data_reloc_tree(struct btrfs_trans_handle *trans,
324 struct btrfs_root *root)
326 struct btrfs_key location;
327 struct btrfs_root_item root_item;
328 struct extent_buffer *tmp;
329 u64 objectid = BTRFS_DATA_RELOC_TREE_OBJECTID;
332 ret = btrfs_copy_root(trans, root, root->node, &tmp, objectid);
336 memcpy(&root_item, &root->root_item, sizeof(root_item));
337 btrfs_set_root_bytenr(&root_item, tmp->start);
338 btrfs_set_root_level(&root_item, btrfs_header_level(tmp));
339 btrfs_set_root_generation(&root_item, trans->transid);
340 free_extent_buffer(tmp);
342 location.objectid = objectid;
343 location.type = BTRFS_ROOT_ITEM_KEY;
345 ret = btrfs_insert_root(trans, root->fs_info->tree_root,
346 &location, &root_item);
351 static void print_usage(int ret)
353 printf("Usage: mkfs.btrfs [options] dev [ dev ... ]\n");
354 printf("Options:\n");
355 printf(" allocation profiles:\n");
356 printf("\t-d|--data PROFILE data profile, raid0, raid1, raid5, raid6, raid10, dup or single\n");
357 printf("\t-m|--metadata PROFILE metadata profile, values like for data profile\n");
358 printf("\t-M|--mixed mix metadata and data together\n");
359 printf(" features:\n");
360 printf("\t-n|--nodesize SIZE size of btree nodes\n");
361 printf("\t-s|--sectorsize SIZE data block size (may not be mountable by current kernel)\n");
362 printf("\t-O|--features LIST comma separated list of filesystem features (use '-O list-all' to list features)\n");
363 printf("\t-L|--label LABEL set the filesystem label\n");
364 printf("\t-U|--uuid UUID specify the filesystem UUID (must be unique)\n");
365 printf(" creation:\n");
366 printf("\t-b|--byte-count SIZE set filesystem size to SIZE (on the first device)\n");
367 printf("\t-r|--rootdir DIR copy files from DIR to the image root directory\n");
368 printf("\t-K|--nodiscard do not perform whole device TRIM\n");
369 printf("\t-f|--force force overwrite of existing filesystem\n");
370 printf(" general:\n");
371 printf("\t-q|--quiet no messages except errors\n");
372 printf("\t-V|--version print the mkfs.btrfs version and exit\n");
373 printf("\t--help print this help and exit\n");
374 printf(" deprecated:\n");
375 printf("\t-A|--alloc-start START the offset to start the filesystem\n");
376 printf("\t-l|--leafsize SIZE deprecated, alias for nodesize\n");
380 static u64 parse_profile(const char *s)
382 if (strcasecmp(s, "raid0") == 0) {
383 return BTRFS_BLOCK_GROUP_RAID0;
384 } else if (strcasecmp(s, "raid1") == 0) {
385 return BTRFS_BLOCK_GROUP_RAID1;
386 } else if (strcasecmp(s, "raid5") == 0) {
387 return BTRFS_BLOCK_GROUP_RAID5;
388 } else if (strcasecmp(s, "raid6") == 0) {
389 return BTRFS_BLOCK_GROUP_RAID6;
390 } else if (strcasecmp(s, "raid10") == 0) {
391 return BTRFS_BLOCK_GROUP_RAID10;
392 } else if (strcasecmp(s, "dup") == 0) {
393 return BTRFS_BLOCK_GROUP_DUP;
394 } else if (strcasecmp(s, "single") == 0) {
397 error("unknown profile %s", s);
404 static char *parse_label(const char *input)
406 int len = strlen(input);
408 if (len >= BTRFS_LABEL_SIZE) {
409 error("label %s is too long (max %d)", input,
410 BTRFS_LABEL_SIZE - 1);
413 return strdup(input);
416 static int add_directory_items(struct btrfs_trans_handle *trans,
417 struct btrfs_root *root, u64 objectid,
418 ino_t parent_inum, const char *name,
419 struct stat *st, int *dir_index_cnt)
423 struct btrfs_key location;
426 name_len = strlen(name);
428 location.objectid = objectid;
430 location.type = BTRFS_INODE_ITEM_KEY;
432 if (S_ISDIR(st->st_mode))
433 filetype = BTRFS_FT_DIR;
434 if (S_ISREG(st->st_mode))
435 filetype = BTRFS_FT_REG_FILE;
436 if (S_ISLNK(st->st_mode))
437 filetype = BTRFS_FT_SYMLINK;
439 ret = btrfs_insert_dir_item(trans, root, name, name_len,
440 parent_inum, &location,
441 filetype, index_cnt);
444 ret = btrfs_insert_inode_ref(trans, root, name, name_len,
445 objectid, parent_inum, index_cnt);
446 *dir_index_cnt = index_cnt;
452 static int fill_inode_item(struct btrfs_trans_handle *trans,
453 struct btrfs_root *root,
454 struct btrfs_inode_item *dst, struct stat *src)
457 u64 sectorsize = root->fs_info->sectorsize;
460 * btrfs_inode_item has some reserved fields
461 * and represents on-disk inode entry, so
462 * zero everything to prevent information leak
464 memset(dst, 0, sizeof (*dst));
466 btrfs_set_stack_inode_generation(dst, trans->transid);
467 btrfs_set_stack_inode_size(dst, src->st_size);
468 btrfs_set_stack_inode_nbytes(dst, 0);
469 btrfs_set_stack_inode_block_group(dst, 0);
470 btrfs_set_stack_inode_nlink(dst, src->st_nlink);
471 btrfs_set_stack_inode_uid(dst, src->st_uid);
472 btrfs_set_stack_inode_gid(dst, src->st_gid);
473 btrfs_set_stack_inode_mode(dst, src->st_mode);
474 btrfs_set_stack_inode_rdev(dst, 0);
475 btrfs_set_stack_inode_flags(dst, 0);
476 btrfs_set_stack_timespec_sec(&dst->atime, src->st_atime);
477 btrfs_set_stack_timespec_nsec(&dst->atime, 0);
478 btrfs_set_stack_timespec_sec(&dst->ctime, src->st_ctime);
479 btrfs_set_stack_timespec_nsec(&dst->ctime, 0);
480 btrfs_set_stack_timespec_sec(&dst->mtime, src->st_mtime);
481 btrfs_set_stack_timespec_nsec(&dst->mtime, 0);
482 btrfs_set_stack_timespec_sec(&dst->otime, 0);
483 btrfs_set_stack_timespec_nsec(&dst->otime, 0);
485 if (S_ISDIR(src->st_mode)) {
486 btrfs_set_stack_inode_size(dst, 0);
487 btrfs_set_stack_inode_nlink(dst, 1);
489 if (S_ISREG(src->st_mode)) {
490 btrfs_set_stack_inode_size(dst, (u64)src->st_size);
491 if (src->st_size <= BTRFS_MAX_INLINE_DATA_SIZE(root))
492 btrfs_set_stack_inode_nbytes(dst, src->st_size);
494 blocks = src->st_size / sectorsize;
495 if (src->st_size % sectorsize)
497 blocks *= sectorsize;
498 btrfs_set_stack_inode_nbytes(dst, blocks);
501 if (S_ISLNK(src->st_mode))
502 btrfs_set_stack_inode_nbytes(dst, src->st_size + 1);
507 static int directory_select(const struct direct *entry)
509 if (entry->d_name[0] == '.' &&
510 (entry->d_name[1] == 0 ||
511 (entry->d_name[1] == '.' && entry->d_name[2] == 0)))
516 static void free_namelist(struct direct **files, int count)
523 for (i = 0; i < count; ++i)
528 static u64 calculate_dir_inode_size(const char *dirname)
531 struct direct **files, *cur_file;
532 u64 dir_inode_size = 0;
534 count = scandir(dirname, &files, directory_select, NULL);
536 for (i = 0; i < count; i++) {
538 dir_inode_size += strlen(cur_file->d_name);
541 free_namelist(files, count);
544 return dir_inode_size;
547 static int add_inode_items(struct btrfs_trans_handle *trans,
548 struct btrfs_root *root,
549 struct stat *st, const char *name,
551 struct btrfs_inode_item *inode_ret)
554 struct btrfs_inode_item btrfs_inode;
558 fill_inode_item(trans, root, &btrfs_inode, st);
559 objectid = self_objectid;
561 if (S_ISDIR(st->st_mode)) {
562 inode_size = calculate_dir_inode_size(name);
563 btrfs_set_stack_inode_size(&btrfs_inode, inode_size);
566 ret = btrfs_insert_inode(trans, root, objectid, &btrfs_inode);
568 *inode_ret = btrfs_inode;
572 static int add_xattr_item(struct btrfs_trans_handle *trans,
573 struct btrfs_root *root, u64 objectid,
574 const char *file_name)
578 char xattr_list[XATTR_LIST_MAX];
580 char cur_value[XATTR_SIZE_MAX];
581 char delimiter = '\0';
582 char *next_location = xattr_list;
584 ret = llistxattr(file_name, xattr_list, XATTR_LIST_MAX);
588 error("getting a list of xattr failed for %s: %s", file_name,
595 cur_name = strtok(xattr_list, &delimiter);
596 while (cur_name != NULL) {
597 cur_name_len = strlen(cur_name);
598 next_location += cur_name_len + 1;
600 ret = getxattr(file_name, cur_name, cur_value, XATTR_SIZE_MAX);
604 error("gettig a xattr value failed for %s attr %s: %s",
605 file_name, cur_name, strerror(errno));
609 ret = btrfs_insert_xattr_item(trans, root, cur_name,
610 cur_name_len, cur_value,
613 error("inserting a xattr item failed for %s: %s",
614 file_name, strerror(-ret));
617 cur_name = strtok(next_location, &delimiter);
623 static int add_symbolic_link(struct btrfs_trans_handle *trans,
624 struct btrfs_root *root,
625 u64 objectid, const char *path_name)
630 ret = readlink(path_name, buf, sizeof(buf));
632 error("readlink failed for %s: %s", path_name, strerror(errno));
635 if (ret >= sizeof(buf)) {
636 error("symlink too long for %s", path_name);
641 buf[ret] = '\0'; /* readlink does not do it for us */
642 ret = btrfs_insert_inline_extent(trans, root, objectid, 0,
648 static int add_file_items(struct btrfs_trans_handle *trans,
649 struct btrfs_root *root,
650 struct btrfs_inode_item *btrfs_inode, u64 objectid,
651 struct stat *st, const char *path_name)
656 struct btrfs_key key;
658 u32 sectorsize = root->fs_info->sectorsize;
663 struct extent_buffer *eb = NULL;
666 if (st->st_size == 0)
669 fd = open(path_name, O_RDONLY);
671 error("cannot open %s: %s", path_name, strerror(errno));
675 blocks = st->st_size / sectorsize;
676 if (st->st_size % sectorsize)
679 if (st->st_size <= BTRFS_MAX_INLINE_DATA_SIZE(root)) {
680 char *buffer = malloc(st->st_size);
687 ret_read = pread64(fd, buffer, st->st_size, bytes_read);
688 if (ret_read == -1) {
689 error("cannot read %s at offset %llu length %llu: %s",
690 path_name, (unsigned long long)bytes_read,
691 (unsigned long long)st->st_size,
697 ret = btrfs_insert_inline_extent(trans, root, objectid, 0,
698 buffer, st->st_size);
703 /* round up our st_size to the FS blocksize */
704 total_bytes = (u64)blocks * sectorsize;
707 * do our IO in extent buffers so it can work
708 * against any raid type
710 eb = calloc(1, sizeof(*eb) + sectorsize);
719 * keep our extent size at 1MB max, this makes it easier to work inside
720 * the tiny block groups created during mkfs
722 cur_bytes = min(total_bytes, 1024ULL * 1024);
723 ret = btrfs_reserve_extent(trans, root, cur_bytes, 0, 0, (u64)-1,
728 first_block = key.objectid;
731 while (bytes_read < cur_bytes) {
733 memset(eb->data, 0, sectorsize);
735 ret_read = pread64(fd, eb->data, sectorsize, file_pos + bytes_read);
736 if (ret_read == -1) {
737 error("cannot read %s at offset %llu length %llu: %s",
739 (unsigned long long)file_pos + bytes_read,
740 (unsigned long long)sectorsize,
745 eb->start = first_block + bytes_read;
746 eb->len = sectorsize;
749 * we're doing the csum before we record the extent, but
752 ret = btrfs_csum_file_block(trans, root->fs_info->csum_root,
753 first_block + bytes_read + sectorsize,
754 first_block + bytes_read,
755 eb->data, sectorsize);
759 ret = write_and_map_eb(root->fs_info, eb);
761 error("failed to write %s", path_name);
765 bytes_read += sectorsize;
769 ret = btrfs_record_file_extent(trans, root, objectid, btrfs_inode,
770 file_pos, first_block, cur_bytes);
776 file_pos += cur_bytes;
777 total_bytes -= cur_bytes;
788 static char *make_path(const char *dir, const char *name)
792 path = malloc(strlen(dir) + strlen(name) + 2);
796 if (dir[strlen(dir) - 1] != '/')
802 static int traverse_directory(struct btrfs_trans_handle *trans,
803 struct btrfs_root *root, const char *dir_name,
804 struct directory_name_entry *dir_head, int out_fd)
808 struct btrfs_inode_item cur_inode;
809 struct btrfs_inode_item *inode_item;
810 int count, i, dir_index_cnt;
811 struct direct **files;
813 struct directory_name_entry *dir_entry, *parent_dir_entry;
814 struct direct *cur_file;
815 ino_t parent_inum, cur_inum;
816 ino_t highest_inum = 0;
817 const char *parent_dir_name;
818 char real_path[PATH_MAX];
819 struct btrfs_path path;
820 struct extent_buffer *leaf;
821 struct btrfs_key root_dir_key;
822 u64 root_dir_inode_size = 0;
824 /* Add list for source directory */
825 dir_entry = malloc(sizeof(struct directory_name_entry));
828 dir_entry->dir_name = dir_name;
829 dir_entry->path = realpath(dir_name, real_path);
830 if (!dir_entry->path) {
831 error("realpath failed for %s: %s", dir_name, strerror(errno));
836 parent_inum = highest_inum + BTRFS_FIRST_FREE_OBJECTID;
837 dir_entry->inum = parent_inum;
838 list_add_tail(&dir_entry->list, &dir_head->list);
840 btrfs_init_path(&path);
842 root_dir_key.objectid = btrfs_root_dirid(&root->root_item);
843 root_dir_key.offset = 0;
844 root_dir_key.type = BTRFS_INODE_ITEM_KEY;
845 ret = btrfs_lookup_inode(trans, root, &path, &root_dir_key, 1);
847 error("failed to lookup root dir: %d", ret);
851 leaf = path.nodes[0];
852 inode_item = btrfs_item_ptr(leaf, path.slots[0],
853 struct btrfs_inode_item);
855 root_dir_inode_size = calculate_dir_inode_size(dir_name);
856 btrfs_set_inode_size(leaf, inode_item, root_dir_inode_size);
857 btrfs_mark_buffer_dirty(leaf);
859 btrfs_release_path(&path);
862 parent_dir_entry = list_entry(dir_head->list.next,
863 struct directory_name_entry,
865 list_del(&parent_dir_entry->list);
867 parent_inum = parent_dir_entry->inum;
868 parent_dir_name = parent_dir_entry->dir_name;
869 if (chdir(parent_dir_entry->path)) {
870 error("chdir failed for %s: %s",
871 parent_dir_name, strerror(errno));
876 count = scandir(parent_dir_entry->path, &files,
877 directory_select, NULL);
880 error("scandir failed for %s: %s",
881 parent_dir_name, strerror (errno));
886 for (i = 0; i < count; i++) {
889 if (lstat(cur_file->d_name, &st) == -1) {
890 error("lstat failed for %s: %s",
891 cur_file->d_name, strerror(errno));
896 cur_inum = st.st_ino;
897 ret = add_directory_items(trans, root,
898 cur_inum, parent_inum,
900 &st, &dir_index_cnt);
902 error("unable to add directory items for %s: %d",
903 cur_file->d_name, ret);
907 ret = add_inode_items(trans, root, &st,
908 cur_file->d_name, cur_inum,
910 if (ret == -EEXIST) {
911 if (st.st_nlink <= 1) {
913 "item %s already exists but has wrong st_nlink %lu <= 1",
915 (unsigned long)st.st_nlink);
921 error("unable to add inode items for %s: %d",
922 cur_file->d_name, ret);
926 ret = add_xattr_item(trans, root,
927 cur_inum, cur_file->d_name);
929 error("unable to add xattr items for %s: %d",
930 cur_file->d_name, ret);
935 if (S_ISDIR(st.st_mode)) {
936 dir_entry = malloc(sizeof(struct directory_name_entry));
941 dir_entry->dir_name = cur_file->d_name;
942 dir_entry->path = make_path(parent_dir_entry->path,
944 dir_entry->inum = cur_inum;
945 list_add_tail(&dir_entry->list, &dir_head->list);
946 } else if (S_ISREG(st.st_mode)) {
947 ret = add_file_items(trans, root, &cur_inode,
951 error("unable to add file items for %s: %d",
952 cur_file->d_name, ret);
955 } else if (S_ISLNK(st.st_mode)) {
956 ret = add_symbolic_link(trans, root,
957 cur_inum, cur_file->d_name);
959 error("unable to add symlink for %s: %d",
960 cur_file->d_name, ret);
966 free_namelist(files, count);
967 free(parent_dir_entry);
971 } while (!list_empty(&dir_head->list));
976 free_namelist(files, count);
978 free(parent_dir_entry);
985 static int create_chunks(struct btrfs_trans_handle *trans,
986 struct btrfs_root *root, u64 num_of_meta_chunks,
988 struct mkfs_allocation *allocation)
990 struct btrfs_fs_info *fs_info = root->fs_info;
993 u64 meta_type = BTRFS_BLOCK_GROUP_METADATA;
994 u64 data_type = BTRFS_BLOCK_GROUP_DATA;
995 u64 minimum_data_chunk_size = 8 * 1024 * 1024;
999 for (i = 0; i < num_of_meta_chunks; i++) {
1000 ret = btrfs_alloc_chunk(trans, fs_info,
1001 &chunk_start, &chunk_size, meta_type);
1004 ret = btrfs_make_block_group(trans, fs_info, 0,
1005 meta_type, BTRFS_FIRST_CHUNK_TREE_OBJECTID,
1006 chunk_start, chunk_size);
1007 allocation->metadata += chunk_size;
1010 set_extent_dirty(&root->fs_info->free_space_cache,
1011 chunk_start, chunk_start + chunk_size - 1);
1014 if (size_of_data < minimum_data_chunk_size)
1015 size_of_data = minimum_data_chunk_size;
1017 ret = btrfs_alloc_data_chunk(trans, fs_info,
1018 &chunk_start, size_of_data, data_type, 0);
1021 ret = btrfs_make_block_group(trans, fs_info, 0,
1022 data_type, BTRFS_FIRST_CHUNK_TREE_OBJECTID,
1023 chunk_start, size_of_data);
1024 allocation->data += size_of_data;
1027 set_extent_dirty(&root->fs_info->free_space_cache,
1028 chunk_start, chunk_start + size_of_data - 1);
1032 static int make_image(const char *source_dir, struct btrfs_root *root,
1036 struct btrfs_trans_handle *trans;
1037 struct stat root_st;
1038 struct directory_name_entry dir_head;
1039 struct directory_name_entry *dir_entry = NULL;
1041 ret = lstat(source_dir, &root_st);
1043 error("unable to lstat %s: %s", source_dir, strerror(errno));
1048 INIT_LIST_HEAD(&dir_head.list);
1050 trans = btrfs_start_transaction(root, 1);
1051 ret = traverse_directory(trans, root, source_dir, &dir_head, out_fd);
1053 error("unable to traverse directory %s: %d", source_dir, ret);
1056 ret = btrfs_commit_transaction(trans, root);
1058 error("transaction commit failed: %d", ret);
1063 printf("Making image is completed.\n");
1066 while (!list_empty(&dir_head.list)) {
1067 dir_entry = list_entry(dir_head.list.next,
1068 struct directory_name_entry, list);
1069 list_del(&dir_entry->list);
1077 * This ignores symlinks with unreadable targets and subdirs that can't
1078 * be read. It's a best-effort to give a rough estimate of the size of
1079 * a subdir. It doesn't guarantee that prepopulating btrfs from this
1080 * tree won't still run out of space.
1082 static u64 global_total_size;
1083 static u64 fs_block_size;
1084 static int ftw_add_entry_size(const char *fpath, const struct stat *st,
1087 if (type == FTW_F || type == FTW_D)
1088 global_total_size += round_up(st->st_size, fs_block_size);
1093 static u64 size_sourcedir(const char *dir_name, u64 sectorsize,
1094 u64 *num_of_meta_chunks_ret, u64 *size_of_data_ret)
1099 u64 default_chunk_size = 8 * 1024 * 1024; /* 8MB */
1100 u64 allocated_meta_size = 8 * 1024 * 1024; /* 8MB */
1101 u64 allocated_total_size = 20 * 1024 * 1024; /* 20MB */
1102 u64 num_of_meta_chunks = 0;
1103 u64 num_of_data_chunks = 0;
1104 u64 num_of_allocated_meta_chunks =
1105 allocated_meta_size / default_chunk_size;
1107 global_total_size = 0;
1108 fs_block_size = sectorsize;
1109 ret = ftw(dir_name, ftw_add_entry_size, 10);
1110 dir_size = global_total_size;
1112 error("ftw subdir walk of %s failed: %s", dir_name,
1117 num_of_data_chunks = (dir_size + default_chunk_size - 1) /
1120 num_of_meta_chunks = (dir_size / 2) / default_chunk_size;
1121 if (((dir_size / 2) % default_chunk_size) != 0)
1122 num_of_meta_chunks++;
1123 if (num_of_meta_chunks <= num_of_allocated_meta_chunks)
1124 num_of_meta_chunks = 0;
1126 num_of_meta_chunks -= num_of_allocated_meta_chunks;
1128 total_size = allocated_total_size +
1129 (num_of_data_chunks * default_chunk_size) +
1130 (num_of_meta_chunks * default_chunk_size);
1132 *num_of_meta_chunks_ret = num_of_meta_chunks;
1133 *size_of_data_ret = num_of_data_chunks * default_chunk_size;
1137 static int zero_output_file(int out_fd, u64 size)
1145 memset(buf, 0, 4096);
1146 loop_num = size / 4096;
1147 for (i = 0; i < loop_num; i++) {
1148 written = pwrite64(out_fd, buf, 4096, location);
1149 if (written != 4096)
1156 static int is_ssd(const char *file)
1159 char wholedisk[PATH_MAX];
1160 char sysfs_path[PATH_MAX];
1166 probe = blkid_new_probe_from_filename(file);
1170 /* Device number of this disk (possibly a partition) */
1171 devno = blkid_probe_get_devno(probe);
1173 blkid_free_probe(probe);
1177 /* Get whole disk name (not full path) for this devno */
1178 ret = blkid_devno_to_wholedisk(devno,
1179 wholedisk, sizeof(wholedisk), NULL);
1181 blkid_free_probe(probe);
1185 snprintf(sysfs_path, PATH_MAX, "/sys/block/%s/queue/rotational",
1188 blkid_free_probe(probe);
1190 fd = open(sysfs_path, O_RDONLY);
1195 if (read(fd, &rotational, 1) < 1) {
1201 return rotational == '0';
1204 static int _cmp_device_by_id(void *priv, struct list_head *a,
1205 struct list_head *b)
1207 return list_entry(a, struct btrfs_device, dev_list)->devid -
1208 list_entry(b, struct btrfs_device, dev_list)->devid;
1211 static void list_all_devices(struct btrfs_root *root)
1213 struct btrfs_fs_devices *fs_devices;
1214 struct btrfs_device *device;
1215 int number_of_devices = 0;
1216 u64 total_block_count = 0;
1218 fs_devices = root->fs_info->fs_devices;
1220 list_for_each_entry(device, &fs_devices->devices, dev_list)
1221 number_of_devices++;
1223 list_sort(NULL, &fs_devices->devices, _cmp_device_by_id);
1225 printf("Number of devices: %d\n", number_of_devices);
1226 /* printf("Total devices size: %10s\n", */
1227 /* pretty_size(total_block_count)); */
1228 printf("Devices:\n");
1229 printf(" ID SIZE PATH\n");
1230 list_for_each_entry(device, &fs_devices->devices, dev_list) {
1231 printf(" %3llu %10s %s\n",
1233 pretty_size(device->total_bytes),
1235 total_block_count += device->total_bytes;
1241 static int is_temp_block_group(struct extent_buffer *node,
1242 struct btrfs_block_group_item *bgi,
1243 u64 data_profile, u64 meta_profile,
1246 u64 flag = btrfs_disk_block_group_flags(node, bgi);
1247 u64 flag_type = flag & BTRFS_BLOCK_GROUP_TYPE_MASK;
1248 u64 flag_profile = flag & BTRFS_BLOCK_GROUP_PROFILE_MASK;
1249 u64 used = btrfs_disk_block_group_used(node, bgi);
1252 * Chunks meets all the following conditions is a temp chunk
1254 * Temp chunk is always empty.
1256 * 2) profile mismatch with mkfs profile.
1257 * Temp chunk is always in SINGLE
1259 * 3) Size differs with mkfs_alloc
1260 * Special case for SINGLE/SINGLE btrfs.
1261 * In that case, temp data chunk and real data chunk are always empty.
1262 * So we need to use mkfs_alloc to be sure which chunk is the newly
1265 * Normally, new chunk size is equal to mkfs one (One chunk)
1266 * If it has multiple chunks, we just refuse to delete any one.
1267 * As they are all single, so no real problem will happen.
1268 * So only use condition 1) and 2) to judge them.
1272 switch (flag_type) {
1273 case BTRFS_BLOCK_GROUP_DATA:
1274 case BTRFS_BLOCK_GROUP_DATA | BTRFS_BLOCK_GROUP_METADATA:
1275 data_profile &= BTRFS_BLOCK_GROUP_PROFILE_MASK;
1276 if (flag_profile != data_profile)
1279 case BTRFS_BLOCK_GROUP_METADATA:
1280 meta_profile &= BTRFS_BLOCK_GROUP_PROFILE_MASK;
1281 if (flag_profile != meta_profile)
1284 case BTRFS_BLOCK_GROUP_SYSTEM:
1285 sys_profile &= BTRFS_BLOCK_GROUP_PROFILE_MASK;
1286 if (flag_profile != sys_profile)
1293 /* Note: if current is a block group, it will skip it anyway */
1294 static int next_block_group(struct btrfs_root *root,
1295 struct btrfs_path *path)
1297 struct btrfs_key key;
1301 ret = btrfs_next_item(root, path);
1305 btrfs_item_key_to_cpu(path->nodes[0], &key, path->slots[0]);
1306 if (key.type == BTRFS_BLOCK_GROUP_ITEM_KEY)
1313 /* This function will cleanup */
1314 static int cleanup_temp_chunks(struct btrfs_fs_info *fs_info,
1315 struct mkfs_allocation *alloc,
1316 u64 data_profile, u64 meta_profile,
1319 struct btrfs_trans_handle *trans = NULL;
1320 struct btrfs_block_group_item *bgi;
1321 struct btrfs_root *root = fs_info->extent_root;
1322 struct btrfs_key key;
1323 struct btrfs_key found_key;
1324 struct btrfs_path path;
1327 btrfs_init_path(&path);
1328 trans = btrfs_start_transaction(root, 1);
1331 key.type = BTRFS_BLOCK_GROUP_ITEM_KEY;
1336 * as the rest of the loop may modify the tree, we need to
1337 * start a new search each time.
1339 ret = btrfs_search_slot(trans, root, &key, &path, 0, 0);
1343 btrfs_item_key_to_cpu(path.nodes[0], &found_key,
1345 if (found_key.objectid < key.objectid)
1347 if (found_key.type != BTRFS_BLOCK_GROUP_ITEM_KEY) {
1348 ret = next_block_group(root, &path);
1355 btrfs_item_key_to_cpu(path.nodes[0], &found_key,
1359 bgi = btrfs_item_ptr(path.nodes[0], path.slots[0],
1360 struct btrfs_block_group_item);
1361 if (is_temp_block_group(path.nodes[0], bgi,
1362 data_profile, meta_profile,
1364 u64 flags = btrfs_disk_block_group_flags(path.nodes[0],
1367 ret = btrfs_free_block_group(trans, fs_info,
1368 found_key.objectid, found_key.offset);
1372 if ((flags & BTRFS_BLOCK_GROUP_TYPE_MASK) ==
1373 BTRFS_BLOCK_GROUP_DATA)
1374 alloc->data -= found_key.offset;
1375 else if ((flags & BTRFS_BLOCK_GROUP_TYPE_MASK) ==
1376 BTRFS_BLOCK_GROUP_METADATA)
1377 alloc->metadata -= found_key.offset;
1378 else if ((flags & BTRFS_BLOCK_GROUP_TYPE_MASK) ==
1379 BTRFS_BLOCK_GROUP_SYSTEM)
1380 alloc->system -= found_key.offset;
1381 else if ((flags & BTRFS_BLOCK_GROUP_TYPE_MASK) ==
1382 (BTRFS_BLOCK_GROUP_METADATA |
1383 BTRFS_BLOCK_GROUP_DATA))
1384 alloc->mixed -= found_key.offset;
1386 btrfs_release_path(&path);
1387 key.objectid = found_key.objectid + found_key.offset;
1391 btrfs_commit_transaction(trans, root);
1392 btrfs_release_path(&path);
1396 int main(int argc, char **argv)
1399 struct btrfs_root *root;
1400 struct btrfs_fs_info *fs_info;
1401 struct btrfs_trans_handle *trans;
1403 u64 block_count = 0;
1404 u64 dev_block_count = 0;
1405 u64 alloc_start = 0;
1406 u64 metadata_profile = 0;
1407 u64 data_profile = 0;
1408 u32 nodesize = max_t(u32, sysconf(_SC_PAGESIZE),
1409 BTRFS_MKFS_DEFAULT_NODE_SIZE);
1410 u32 sectorsize = 4096;
1411 u32 stripesize = 4096;
1417 int nodesize_forced = 0;
1418 int data_profile_opt = 0;
1419 int metadata_profile_opt = 0;
1422 int force_overwrite = 0;
1423 char *source_dir = NULL;
1424 int source_dir_set = 0;
1425 u64 num_of_meta_chunks = 0;
1426 u64 size_of_data = 0;
1427 u64 source_dir_size = 0;
1430 char fs_uuid[BTRFS_UUID_UNPARSED_SIZE] = { 0 };
1431 u64 features = BTRFS_MKFS_DEFAULT_FEATURES;
1432 struct mkfs_allocation allocation = { 0 };
1433 struct btrfs_mkfs_config mkfs_cfg;
1437 static const struct option long_options[] = {
1438 { "alloc-start", required_argument, NULL, 'A'},
1439 { "byte-count", required_argument, NULL, 'b' },
1440 { "force", no_argument, NULL, 'f' },
1441 { "leafsize", required_argument, NULL, 'l' },
1442 { "label", required_argument, NULL, 'L'},
1443 { "metadata", required_argument, NULL, 'm' },
1444 { "mixed", no_argument, NULL, 'M' },
1445 { "nodesize", required_argument, NULL, 'n' },
1446 { "sectorsize", required_argument, NULL, 's' },
1447 { "data", required_argument, NULL, 'd' },
1448 { "version", no_argument, NULL, 'V' },
1449 { "rootdir", required_argument, NULL, 'r' },
1450 { "nodiscard", no_argument, NULL, 'K' },
1451 { "features", required_argument, NULL, 'O' },
1452 { "uuid", required_argument, NULL, 'U' },
1453 { "quiet", 0, NULL, 'q' },
1454 { "help", no_argument, NULL, GETOPT_VAL_HELP },
1458 c = getopt_long(argc, argv, "A:b:fl:n:s:m:d:L:O:r:U:VMKq",
1459 long_options, NULL);
1464 alloc_start = parse_size(optarg);
1467 force_overwrite = 1;
1470 data_profile = parse_profile(optarg);
1471 data_profile_opt = 1;
1474 warning("--leafsize is deprecated, use --nodesize");
1477 nodesize = parse_size(optarg);
1478 nodesize_forced = 1;
1481 label = parse_label(optarg);
1484 metadata_profile = parse_profile(optarg);
1485 metadata_profile_opt = 1;
1491 char *orig = strdup(optarg);
1494 tmp = btrfs_parse_fs_features(tmp, &features);
1496 error("unrecognized filesystem feature '%s'",
1502 if (features & BTRFS_FEATURE_LIST_ALL) {
1503 btrfs_list_all_fs_features(0);
1509 sectorsize = parse_size(optarg);
1512 block_count = parse_size(optarg);
1516 printf("mkfs.btrfs, part of %s\n",
1521 source_dir = optarg;
1525 strncpy(fs_uuid, optarg,
1526 BTRFS_UUID_UNPARSED_SIZE - 1);
1534 case GETOPT_VAL_HELP:
1536 print_usage(c != GETOPT_VAL_HELP);
1541 printf("%s\n", PACKAGE_STRING);
1542 printf("See %s for more information.\n\n", PACKAGE_URL);
1545 sectorsize = max(sectorsize, (u32)sysconf(_SC_PAGESIZE));
1546 stripesize = sectorsize;
1547 saved_optind = optind;
1548 dev_cnt = argc - optind;
1552 if (source_dir_set && dev_cnt > 1) {
1553 error("the option -r is limited to a single device");
1560 if (uuid_parse(fs_uuid, dummy_uuid) != 0) {
1561 error("could not parse UUID: %s", fs_uuid);
1564 if (!test_uuid_unique(fs_uuid)) {
1565 error("non-unique UUID: %s", fs_uuid);
1570 while (dev_cnt-- > 0) {
1571 file = argv[optind++];
1572 if (is_block_device(file) == 1)
1573 if (test_dev_for_mkfs(file, force_overwrite))
1577 optind = saved_optind;
1578 dev_cnt = argc - optind;
1580 file = argv[optind++];
1584 * Set default profiles according to number of added devices.
1585 * For mixed groups defaults are single/single.
1588 if (!metadata_profile_opt) {
1589 if (dev_cnt == 1 && ssd && verbose)
1590 printf("Detected a SSD, turning off metadata "
1591 "duplication. Mkfs with -m dup if you want to "
1592 "force metadata duplication.\n");
1594 metadata_profile = (dev_cnt > 1) ?
1595 BTRFS_BLOCK_GROUP_RAID1 : (ssd) ?
1596 0: BTRFS_BLOCK_GROUP_DUP;
1598 if (!data_profile_opt) {
1599 data_profile = (dev_cnt > 1) ?
1600 BTRFS_BLOCK_GROUP_RAID0 : 0; /* raid0 or single */
1603 u32 best_nodesize = max_t(u32, sysconf(_SC_PAGESIZE), sectorsize);
1605 if (metadata_profile_opt || data_profile_opt) {
1606 if (metadata_profile != data_profile) {
1608 "with mixed block groups data and metadata profiles must be the same");
1613 if (!nodesize_forced)
1614 nodesize = best_nodesize;
1618 * FS features that can be set by other means than -O
1619 * just set the bit here
1622 features |= BTRFS_FEATURE_INCOMPAT_MIXED_GROUPS;
1624 if ((data_profile | metadata_profile) &
1625 (BTRFS_BLOCK_GROUP_RAID5 | BTRFS_BLOCK_GROUP_RAID6)) {
1626 features |= BTRFS_FEATURE_INCOMPAT_RAID56;
1629 if (btrfs_check_nodesize(nodesize, sectorsize,
1633 if (sectorsize < sizeof(struct btrfs_super_block)) {
1634 error("sectorsize smaller than superblock: %u < %zu",
1635 sectorsize, sizeof(struct btrfs_super_block));
1639 /* Check device/block_count after the nodesize is determined */
1640 if (block_count && block_count < btrfs_min_dev_size(nodesize)) {
1641 error("size %llu is too small to make a usable filesystem",
1643 error("minimum size for btrfs filesystem is %llu",
1644 btrfs_min_dev_size(nodesize));
1647 for (i = saved_optind; i < saved_optind + dev_cnt; i++) {
1651 ret = test_minimum_size(path, nodesize);
1653 error("failed to check size for %s: %s",
1654 path, strerror(-ret));
1658 error("'%s' is too small to make a usable filesystem",
1660 error("minimum size for each btrfs device is %llu",
1661 btrfs_min_dev_size(nodesize));
1665 ret = test_num_disk_vs_raid(metadata_profile, data_profile,
1666 dev_cnt, mixed, ssd);
1672 if (!source_dir_set) {
1674 * open without O_EXCL so that the problem should not
1675 * occur by the following processing.
1676 * (btrfs_register_one_device() fails if O_EXCL is on)
1678 fd = open(file, O_RDWR);
1680 error("unable to open %s: %s", file, strerror(errno));
1683 ret = btrfs_prepare_device(fd, file, &dev_block_count,
1685 (zero_end ? PREP_DEVICE_ZERO_END : 0) |
1686 (discard ? PREP_DEVICE_DISCARD : 0) |
1687 (verbose ? PREP_DEVICE_VERBOSE : 0));
1692 if (block_count && block_count > dev_block_count) {
1693 error("%s is smaller than requested size, expected %llu, found %llu",
1695 (unsigned long long)block_count,
1696 (unsigned long long)dev_block_count);
1700 fd = open(file, O_CREAT | O_RDWR,
1701 S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
1703 error("unable to open %s: %s", file, strerror(errno));
1707 source_dir_size = size_sourcedir(source_dir, sectorsize,
1708 &num_of_meta_chunks, &size_of_data);
1709 if(block_count < source_dir_size)
1710 block_count = source_dir_size;
1711 ret = zero_output_file(fd, block_count);
1713 error("unable to zero the output file");
1716 /* our "device" is the new image file */
1717 dev_block_count = block_count;
1720 /* To create the first block group and chunk 0 in make_btrfs */
1721 if (dev_block_count < BTRFS_MKFS_SYSTEM_GROUP_SIZE) {
1722 error("device is too small to make filesystem, must be at least %llu",
1723 (unsigned long long)BTRFS_MKFS_SYSTEM_GROUP_SIZE);
1727 if (group_profile_max_safe_loss(metadata_profile) <
1728 group_profile_max_safe_loss(data_profile)){
1729 warning("metadata has lower redundancy than data!\n");
1732 mkfs_cfg.label = label;
1733 memcpy(mkfs_cfg.fs_uuid, fs_uuid, sizeof(mkfs_cfg.fs_uuid));
1734 mkfs_cfg.num_bytes = dev_block_count;
1735 mkfs_cfg.nodesize = nodesize;
1736 mkfs_cfg.sectorsize = sectorsize;
1737 mkfs_cfg.stripesize = stripesize;
1738 mkfs_cfg.features = features;
1740 ret = make_btrfs(fd, &mkfs_cfg);
1742 error("error during mkfs: %s", strerror(-ret));
1746 fs_info = open_ctree_fs_info(file, 0, 0, 0,
1747 OPEN_CTREE_WRITES | OPEN_CTREE_FS_PARTIAL);
1749 error("open ctree failed");
1753 root = fs_info->fs_root;
1754 fs_info->alloc_start = alloc_start;
1756 ret = create_metadata_block_groups(root, mixed, &allocation);
1758 error("failed to create default block groups: %d", ret);
1762 trans = btrfs_start_transaction(root, 1);
1764 error("failed to start transaction");
1768 ret = create_data_block_groups(trans, root, mixed, &allocation);
1770 error("failed to create default data block groups: %d", ret);
1774 ret = make_root_dir(trans, root);
1776 error("failed to setup the root directory: %d", ret);
1780 ret = btrfs_commit_transaction(trans, root);
1782 error("unable to commit transaction: %d", ret);
1786 trans = btrfs_start_transaction(root, 1);
1788 error("failed to start transaction");
1795 while (dev_cnt-- > 0) {
1796 file = argv[optind++];
1799 * open without O_EXCL so that the problem should not
1800 * occur by the following processing.
1801 * (btrfs_register_one_device() fails if O_EXCL is on)
1803 fd = open(file, O_RDWR);
1805 error("unable to open %s: %s", file, strerror(errno));
1808 ret = btrfs_device_already_in_root(root, fd,
1809 BTRFS_SUPER_INFO_OFFSET);
1811 error("skipping duplicate device %s in the filesystem",
1816 ret = btrfs_prepare_device(fd, file, &dev_block_count,
1818 (verbose ? PREP_DEVICE_VERBOSE : 0) |
1819 (zero_end ? PREP_DEVICE_ZERO_END : 0) |
1820 (discard ? PREP_DEVICE_DISCARD : 0));
1826 ret = btrfs_add_to_fsid(trans, root, fd, file, dev_block_count,
1827 sectorsize, sectorsize, sectorsize);
1829 error("unable to add %s to filesystem: %d", file, ret);
1833 struct btrfs_device *device;
1835 device = container_of(fs_info->fs_devices->devices.next,
1836 struct btrfs_device, dev_list);
1837 printf("adding device %s id %llu\n", file,
1838 (unsigned long long)device->devid);
1843 if (!source_dir_set) {
1844 ret = create_raid_groups(trans, root, data_profile,
1845 metadata_profile, mixed, &allocation);
1847 error("unable to create raid groups: %d", ret);
1852 ret = create_data_reloc_tree(trans, root);
1854 error("unable to create data reloc tree: %d", ret);
1858 ret = btrfs_commit_transaction(trans, root);
1860 error("unable to commit transaction: %d", ret);
1864 if (source_dir_set) {
1865 trans = btrfs_start_transaction(root, 1);
1866 ret = create_chunks(trans, root,
1867 num_of_meta_chunks, size_of_data,
1870 error("unable to create chunks: %d", ret);
1873 ret = btrfs_commit_transaction(trans, root);
1875 error("transaction commit failed: %d", ret);
1879 ret = make_image(source_dir, root, fd);
1881 error("error wihle filling filesystem: %d", ret);
1885 ret = cleanup_temp_chunks(fs_info, &allocation, data_profile,
1886 metadata_profile, metadata_profile);
1888 error("failed to cleanup temporary chunks: %d", ret);
1893 char features_buf[64];
1895 printf("Label: %s\n", label);
1896 printf("UUID: %s\n", mkfs_cfg.fs_uuid);
1897 printf("Node size: %u\n", nodesize);
1898 printf("Sector size: %u\n", sectorsize);
1899 printf("Filesystem size: %s\n",
1900 pretty_size(btrfs_super_total_bytes(fs_info->super_copy)));
1901 printf("Block group profiles:\n");
1902 if (allocation.data)
1903 printf(" Data: %-8s %16s\n",
1904 btrfs_group_profile_str(data_profile),
1905 pretty_size(allocation.data));
1906 if (allocation.metadata)
1907 printf(" Metadata: %-8s %16s\n",
1908 btrfs_group_profile_str(metadata_profile),
1909 pretty_size(allocation.metadata));
1910 if (allocation.mixed)
1911 printf(" Data+Metadata: %-8s %16s\n",
1912 btrfs_group_profile_str(data_profile),
1913 pretty_size(allocation.mixed));
1914 printf(" System: %-8s %16s\n",
1915 btrfs_group_profile_str(metadata_profile),
1916 pretty_size(allocation.system));
1917 printf("SSD detected: %s\n", ssd ? "yes" : "no");
1918 btrfs_parse_features_to_string(features_buf, features);
1919 printf("Incompat features: %s", features_buf);
1922 list_all_devices(root);
1926 * The filesystem is now fully set up, commit the remaining changes and
1927 * fix the signature as the last step before closing the devices.
1929 fs_info->finalize_on_close = 1;
1931 ret = close_ctree(root);
1934 optind = saved_optind;
1935 dev_cnt = argc - optind;
1936 while (dev_cnt-- > 0) {
1937 file = argv[optind++];
1938 if (is_block_device(file) == 1)
1939 btrfs_register_one_device(file);
1943 btrfs_close_all_devices();