X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=blobdiff_plain;f=config%2Fkernel-bio-failfast.m4;fp=config%2Fkernel-bio-failfast.m4;h=acc6575629dd36608d7cdac70f3f1e79b6c79e5a;hb=2959d94a0a53612cc1ca9ce9d17df26c3d69a513;hp=0000000000000000000000000000000000000000;hpb=c5343ba71b9fea6e3636be25a16173092f2042ba;p=zfs.git

diff --git a/config/kernel-bio-failfast.m4 b/config/kernel-bio-failfast.m4
new file mode 100644
index 0000000..acc6575
--- /dev/null
+++ b/config/kernel-bio-failfast.m4
@@ -0,0 +1,22 @@
+dnl #
+dnl # 2.6.28 API change
+dnl # Device, transport, and driver FAILFAST flags were added and
+dnl # the now legacy BIO_RW_FAILFAST flag was removed.
+dnl #
+AC_DEFUN([ZFS_AC_KERNEL_BIO_FAILFAST], [
+	AC_MSG_CHECKING([whether BIO_RW_FAILFAST_* are defined])
+	ZFS_LINUX_TRY_COMPILE([
+		#include <linux/bio.h>
+	],[
+		int flags;
+		flags = ((1 << BIO_RW_FAILFAST_DEV) |
+			 (1 << BIO_RW_FAILFAST_TRANSPORT) |
+			 (1 << BIO_RW_FAILFAST_DRIVER));
+	],[
+		AC_MSG_RESULT(yes)
+		AC_DEFINE(HAVE_BIO_RW_FAILFAST, 1,
+		          [BIO_RW_FAILFAST_* are defined])
+	],[
+		AC_MSG_RESULT(no)
+	])
+])