BTRFS_DEVICE_RANGE_RESERVED
start = max_t(u64, start, BTRFS_DEVICE_RANGE_RESERVED);
u64 start = BTRFS_DEVICE_RANGE_RESERVED;
start = BTRFS_DEVICE_RANGE_RESERVED;
if (avail_space <= BTRFS_DEVICE_RANGE_RESERVED + min_stripe_size)
avail_space -= BTRFS_DEVICE_RANGE_RESERVED;
return BTRFS_DEVICE_RANGE_RESERVED;
if (bdev_nr_bytes(file_bdev(bdev_file)) <= BTRFS_DEVICE_RANGE_RESERVED) {
if (physical_offset < BTRFS_DEVICE_RANGE_RESERVED)