2 dnl # 2.6.28 API change
3 dnl # Device, transport, and driver FAILFAST flags were added and
4 dnl # the now legacy BIO_RW_FAILFAST flag was removed.
6 AC_DEFUN([ZFS_AC_KERNEL_BIO_FAILFAST], [
7 AC_MSG_CHECKING([whether BIO_RW_FAILFAST_* are defined])
8 ZFS_LINUX_TRY_COMPILE([
12 flags = ((1 << BIO_RW_FAILFAST_DEV) |
13 (1 << BIO_RW_FAILFAST_TRANSPORT) |
14 (1 << BIO_RW_FAILFAST_DRIVER));
17 AC_DEFINE(HAVE_BIO_RW_FAILFAST, 1,
18 [BIO_RW_FAILFAST_* are defined])