t.Fatal(err)
	}

	data := make([]syscall.Statfs_t, n)
	n2, err := syscall.Getfsstat(data, flags)
	t.Logf("Getfsstat([]syscall.Statfs_t, %d) = (%v, %v)", flags, n2, err)
	if err != nil {
		t.Fatal(err)
	}
	if n != n2 {
		t.Errorf("Getfsstat(nil) = %d, but subsequent Getfsstat(slice) = %d", n, n2)
	}
	for i, stat := range data {
		if stat == (syscall.Statfs_t{}) {
			t.Errorf("index %v is an empty Statfs_t struct", i)

pkg syscall (freebsd-386), type Stat_t struct, Rdev uint64
pkg syscall (freebsd-386), type Stat_t struct, Spare [10]uint64
pkg syscall (freebsd-386), type Statfs_t struct, Mntfromname [1024]int8
pkg syscall (freebsd-386), type Statfs_t struct, Mntonname [1024]int8
pkg syscall (freebsd-386-cgo), const S_IRWXG = 56
pkg syscall (freebsd-386-cgo), const S_IRWXG ideal-int
pkg syscall (freebsd-386-cgo), const S_IRWXO = 7

func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
	return -1, ENOSYS
}

func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
	var bufptr *Statfs_t
	var bufsize uintptr
	if len(buf) > 0 {
		bufptr = &buf[0]
		bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf))
	}
	return getfsstat(bufptr, bufsize, flags)
}

/*
 * Exposed directly
 */

pkg syscall (openbsd-amd64), type Stat_t struct, Lspare1 int32
pkg syscall (openbsd-amd64), type Stat_t struct, Qspare [2]int64
pkg syscall (openbsd-amd64), type Statfs_t struct, F_ctime uint32
pkg syscall (openbsd-amd64), type Statfs_t struct, F_spare [3]uint32
pkg syscall (openbsd-amd64), type Statfs_t struct, Pad_cgo_1 [4]uint8
pkg syscall (openbsd-amd64), type Timespec struct, Pad_cgo_0 [4]uint8
pkg syscall (openbsd-amd64), type Timespec struct, Sec int32

//sys	Fstatfs(fd int, stat *Statfs_t) (err error)
//sys	getfsstat(buf unsafe.Pointer, size uintptr, flags int) (n int, err error) = SYS_GETFSSTAT
//sys	Lstat(path string, stat *Stat_t) (err error)
//sys	ptrace1(request int, pid int, addr uintptr, data uintptr) (err error) = SYS_ptrace
//sys	Stat(path string, stat *Stat_t) (err error)

//sys	Fstat(fd int, stat *Stat_t) (err error) = SYS_FSTAT64
//sys	Fstatat(fd int, path string, stat *Stat_t, flags int) (err error) = SYS_FSTATAT64
//sys	Fstatfs(fd int, stat *Statfs_t) (err error) = SYS_FSTATFS64
//sys	getfsstat(buf unsafe.Pointer, size uintptr, flags int) (n int, err error) = SYS_GETFSSTAT64
//sys	Lstat(path string, stat *Stat_t) (err error) = SYS_LSTAT64

}

//sys	Fstat(fd int, stat *Stat_t) (err error) = SYS_fstat64
//sys	Fstatfs(fd int, stat *Statfs_t) (err error) = SYS_fstatfs64
//sysnb	Gettimeofday(tp *Timeval) (err error)
//sys	Lstat(path string, stat *Stat_t) (err error) = SYS_lstat64
//sys	Stat(path string, stat *Stat_t) (err error) = SYS_stat64
//sys	Statfs(path string, stat *Statfs_t) (err error) = SYS_statfs64

}

//sys	Fstat(fd int, stat *Stat_t) (err error)
//sys	Fstatfs(fd int, stat *Statfs_t) (err error)
//sysnb	Gettimeofday(tp *Timeval) (err error)
//sys	Lstat(path string, stat *Stat_t) (err error)
//sys	Stat(path string, stat *Stat_t) (err error)
//sys	Statfs(path string, stat *Statfs_t) (err error)
//sys	fstatat(fd int, path string, stat *Stat_t, flags int) (err error)

func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
	return -1, ENOSYS
}

func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
	var bufptr *Statfs_t
	var bufsize uintptr
	if len(buf) > 0 {
		bufptr = &buf[0]
		bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf))
	}
	return getfsstat(bufptr, bufsize, flags)
}

//sysnb	getresuid(ruid *_C_int, euid *_C_int, suid *_C_int)

limitations under the License.
*/

package volume_test

import (
	"golang.org/x/sys/unix"
)

func getExpectedBlockSize(path string) int64 {
	statfs := &unix.Statfs_t{}
	err := unix.Statfs(path, statfs)
	if err != nil {
		return 0
	}

	return int64(statfs.Bsize)