diff options
| -rw-r--r-- | fs/btrfs/volumes.c | 25 |
1 files changed, 10 insertions, 15 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index d7cc74f59293..cd72bdc7455e 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -6869,6 +6869,16 @@ static int read_one_dev(struct extent_buffer *leaf, } fill_device_from_item(leaf, dev_item, device); + if (device->bdev) { + u64 max_total_bytes = i_size_read(device->bdev->bd_inode); + + if (device->total_bytes > max_total_bytes) { + btrfs_err(fs_info, + "device total_bytes should be at most %llu but found %llu", + max_total_bytes, device->total_bytes); + return -EINVAL; + } + } set_bit(BTRFS_DEV_STATE_IN_FS_METADATA, &device->dev_state); if (test_bit(BTRFS_DEV_STATE_WRITEABLE, &device->dev_state) && !test_bit(BTRFS_DEV_STATE_REPLACE_TGT, &device->dev_state)) { @@ -7598,21 +7608,6 @@ static int verify_one_dev_extent(struct btrfs_fs_info *fs_info, goto out; } - /* It's possible this device is a dummy for seed device */ - if (dev->disk_total_bytes == 0) { - struct btrfs_fs_devices *devs; - - devs = list_first_entry(&fs_info->fs_devices->seed_list, - struct btrfs_fs_devices, seed_list); - dev = btrfs_find_device(devs, devid, NULL, NULL, false); - if (!dev) { - btrfs_err(fs_info, "failed to find seed devid %llu", - devid); - ret = -EUCLEAN; - goto out; - } - } - if (physical_offset + physical_len > dev->disk_total_bytes) { btrfs_err(fs_info, "dev extent devid %llu physical offset %llu len %llu is beyond device boundary %llu", |