d.tracker.logSuccess()
	}
	return n, err
}

// diskHealthReader provides a wrapper that will update disk health on
// ctx, on every successful read.
// This should only be used directly at the os/syscall level,
// otherwise buffered operations may return false health checks.
func diskHealthReader(ctx context.Context, r io.Reader) io.Reader {
	// Check if context has a disk health check.

	SRA	$4, R4			// 84904800
	ROTR	$4, R4, R5		// 85904c00
	ROTR	$4, R4			// 84904c00
	SLLV	$4, R4, R5		// 85104100
	SLLV	$4, R4			// 84104100
	ROTRV	$4, R4, R5		// 85104d00
	ROTRV	$4, R4			// 84104d00
	SYSCALL				// 00002b00
	BEQ	R4, R5, 1(PC)		// 85040058
	BEQ	R4, 1(PC)		// 80040040
	BEQ	R4, R0, 1(PC)		// 80040040
	BEQ	R0, R4, 1(PC)		// 80040040
	BNE	R4, R5, 1(PC)		// 8504005c
	BNE	R4, 1(PC)		// 80040044

				}
			}
		}
	}

	// Set skipParent to skip mkdirAll() calls for deeply nested objects
	// - if its an overwrite
	// - if its a versioned object
	//
	// This can potentiall reduce syscalls by strings.Split(path, "/")
	// times relative to the object name.
	skipParent := dstVolumeDir
	if len(dstBuf) > 0 {
		skipParent = pathutil.Dir(dstFilePath)
	}

	var reqVID string