X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=blobdiff_plain;f=config%2Fkernel-blkdev-get-by-path.m4;h=40ecc06b6c92a4d2edc827a0d1a3d31e37360584;hb=refs%2Fheads%2Frertzinger%2Ffeature-zpool-get--p;hp=0d5d2b120dec827e9ce1a367ec0eba6cfcfb6b2c;hpb=45066d1f20a582fc8229776503b1cdd554d7fde4;p=zfs.git

diff --git a/config/kernel-blkdev-get-by-path.m4 b/config/kernel-blkdev-get-by-path.m4
index 0d5d2b1..40ecc06 100644
--- a/config/kernel-blkdev-get-by-path.m4
+++ b/config/kernel-blkdev-get-by-path.m4
@@ -3,11 +3,17 @@ dnl # 2.6.38 API change
 dnl # open_bdev_exclusive() changed to blkdev_get_by_path()
 dnl # close_bdev_exclusive() changed to blkdev_put()
 dnl #
-AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_GET_BY_PATH], [
-	ZFS_CHECK_SYMBOL_EXPORT(
-		[blkdev_get_by_path],
-		[fs/block_dev.c],
-		[AC_DEFINE(HAVE_BLKDEV_GET_BY_PATH, 1,
-		[blkdev_get_by_path() is available])],
-		[])
+AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_GET_BY_PATH],
+	[AC_MSG_CHECKING([whether blkdev_get_by_path() is available])
+	ZFS_LINUX_TRY_COMPILE_SYMBOL([
+		#include <linux/fs.h>
+	], [
+		blkdev_get_by_path(NULL, 0, NULL);
+	], [blkdev_get_by_path], [fs/block_dev.c], [
+		AC_MSG_RESULT(yes)
+		AC_DEFINE(HAVE_BLKDEV_GET_BY_PATH, 1,
+		          [blkdev_get_by_path() is available])
+	], [
+		AC_MSG_RESULT(no)
+	])
 ])