[mirror_zfs-debian.git] / config / kernel-bdi.m4

dnl #
dnl # 2.6.32 API change
dnl # Private backing_device_info interfaces available
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BDI], [
	AC_MSG_CHECKING([whether super_block has s_bdi])
	ZFS_LINUX_TRY_COMPILE([
		#include <linux/fs.h>

		static const struct super_block
		    sb __attribute__ ((unused)) = {
			.s_bdi = NULL,
		};
	],[
	],[
		AC_MSG_RESULT(yes)
		AC_DEFINE(HAVE_BDI, 1, [struct super_block has s_bdi])
	],[
		AC_MSG_RESULT(no)
	])
])
Commit	Line	Data
76659dc1 BB	1	dnl #
	2	dnl # 2.6.32 API change
	3	dnl # Private backing_device_info interfaces available
	4	dnl #
	5	AC_DEFUN([ZFS_AC_KERNEL_BDI], [
	6	AC_MSG_CHECKING([whether super_block has s_bdi])
	7	ZFS_LINUX_TRY_COMPILE([
	8	#include <linux/fs.h>
a08ee875 LG	9
	10	static const struct super_block
	11	sb __attribute__ ((unused)) = {
	12	.s_bdi = NULL,
	13	};
76659dc1	14	],[
76659dc1 BB	15	],[
	16	AC_MSG_RESULT(yes)
	17	AC_DEFINE(HAVE_BDI, 1, [struct super_block has s_bdi])
	18	],[
	19	AC_MSG_RESULT(no)
	20	])
	21	])