2 dnl # Preferred interface for setting FAILFAST on a bio:
3 dnl # 2.6.28-2.6.35: BIO_RW_FAILFAST_{DEV|TRANSPORT|DRIVER}
4 dnl # >= 2.6.36: REQ_FAILFAST_{DEV|TRANSPORT|DRIVER}
7 AC_DEFUN([ZFS_AC_KERNEL_BIO_FAILFAST_DTD], [
8 AC_MSG_CHECKING([whether BIO_RW_FAILFAST_* are defined])
9 ZFS_LINUX_TRY_COMPILE([
10 #include <linux/bio.h>
12 int flags __attribute__ ((unused));
13 flags = ((1 << BIO_RW_FAILFAST_DEV) |
14 (1 << BIO_RW_FAILFAST_TRANSPORT) |
15 (1 << BIO_RW_FAILFAST_DRIVER));
18 AC_DEFINE(HAVE_BIO_RW_FAILFAST_DTD, 1,
19 [BIO_RW_FAILFAST_* are defined])
25 AC_DEFUN([ZFS_AC_KERNEL_REQ_FAILFAST_MASK], [
26 AC_MSG_CHECKING([whether REQ_FAILFAST_MASK is defined])
27 ZFS_LINUX_TRY_COMPILE([
28 #include <linux/bio.h>
30 int flags __attribute__ ((unused));
31 flags = REQ_FAILFAST_MASK;
34 AC_DEFINE(HAVE_REQ_FAILFAST_MASK, 1,
35 [REQ_FAILFAST_MASK is defined])