X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=blobdiff_plain;f=config%2Fkernel-lookup-bdev.m4;fp=config%2Fkernel-lookup-bdev.m4;h=245f95f041f805411d461d770e4c6eae0d2d0d1e;hb=2b7ab9d4d9b307c354795e2805ff313ddd01985d;hp=0000000000000000000000000000000000000000;hpb=930b6fec210d828cb3755f8756dbbbf3001cccae;p=zfs.git

diff --git a/config/kernel-lookup-bdev.m4 b/config/kernel-lookup-bdev.m4
new file mode 100644
index 0000000..245f95f
--- /dev/null
+++ b/config/kernel-lookup-bdev.m4
@@ -0,0 +1,17 @@
+dnl #
+dnl # 2.6.27 API change
+dnl # lookup_bdev() was exported.
+dnl #
+AC_DEFUN([ZFS_AC_KERNEL_LOOKUP_BDEV],
+	[AC_MSG_CHECKING([whether lookup_bdev() is available])
+	ZFS_LINUX_TRY_COMPILE_SYMBOL([
+		#include <linux/fs.h>
+	], [
+		lookup_bdev(NULL);
+	], [lookup_bdev], [fs/block_dev.c], [
+		AC_MSG_RESULT(yes)
+		AC_DEFINE(HAVE_LOOKUP_BDEV, 1, [lookup_bdev() is available])
+	], [
+		AC_MSG_RESULT(no)
+	])
+])