2 dnl # 2.6.32 API change
3 dnl # Private backing_device_info interfaces available
5 AC_DEFUN([ZFS_AC_KERNEL_BDI], [
6 AC_MSG_CHECKING([whether super_block has s_bdi])
7 ZFS_LINUX_TRY_COMPILE([
10 static const struct super_block
11 sb __attribute__ ((unused)) {
17 AC_DEFINE(HAVE_BDI, 1, [struct super_block has s_bdi])