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dnl #
dnl # 2.6.34 API change
dnl # The bdi_setup_and_register() helper function is avilable and
dnl # exported by the kernel. This is a trivial helper function but
dnl # using it significantly simplifies the code surrounding setting
dnl # up and tearing down the bdi structure.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BDI_SETUP_AND_REGISTER],
[AC_MSG_CHECKING([whether bdi_setup_and_register() is available])
ZFS_LINUX_TRY_COMPILE_SYMBOL([
#include <linux/backing-dev.h>
], [
bdi_setup_and_register(NULL, NULL, 0);
], [bdi_setup_and_register], [mm/backing-dev.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BDI_SETUP_AND_REGISTER, 1,
[bdi_setup_and_register() is available])
], [
AC_MSG_RESULT(no)
])
])
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