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btrfs-progs: mkfs: handle block ordering errors in make_btrfs 

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2016-09-06 13:52:09 +02:00
parent b83e93e65d
commit 030fa48b55
1 changed files with 15 additions and 2 deletions
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17
utils.c
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@ -1219,8 +1219,21 @@ int make_btrfs(int fd, struct btrfs_mkfs_config *cfg,
if (!skinny_metadata)
item_size += sizeof(struct btrfs_tree_block_info);
BUG_ON(cfg->blocks[i] < first_free);
BUG_ON(cfg->blocks[i] < cfg->blocks[i - 1]);
if (cfg->blocks[i] < first_free) {
error("block[%d] below first free: %llu < %llu",
i, (unsigned long long)cfg->blocks[i],
(unsigned long long)first_free);
ret = -EINVAL;
goto out;
}
if (cfg->blocks[i] < cfg->blocks[i - 1]) {
error("blocks %d and %d in reverse order: %llu < %llu",
i, i - 1,
(unsigned long long)cfg->blocks[i],
(unsigned long long)cfg->blocks[i - 1]);
ret = -EINVAL;
goto out;
}
/* create extent item */
itemoff -= item_size;