2 dnl # 2.6.34 API change
3 dnl # The bdi_setup_and_register() helper function is avilable and
4 dnl # exported by the kernel. This is a trivial helper function but
5 dnl # using it significantly simplifies the code surrounding setting
6 dnl # up and tearing down the bdi structure.
8 AC_DEFUN([ZFS_AC_KERNEL_BDI_SETUP_AND_REGISTER], [
9 ZFS_CHECK_SYMBOL_EXPORT(
10 [bdi_setup_and_register],
12 [AC_DEFINE(HAVE_BDI_SETUP_AND_REGISTER, 1,
13 [bdi_setup_and_register() is available])],