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dnl #
dnl # 4.6 API change
dnl # Added CPU hotplug APIs
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_CPU_HOTPLUG], [
ZFS_LINUX_TEST_SRC([cpu_hotplug], [
#include <linux/cpuhotplug.h>
],[
enum cpuhp_state state = CPUHP_ONLINE;
int (*fp)(unsigned int, struct hlist_node *) = NULL;
cpuhp_state_add_instance_nocalls(0, (struct hlist_node *)NULL);
cpuhp_state_remove_instance_nocalls(0, (struct hlist_node *)NULL);
cpuhp_setup_state_multi(state, "", fp, fp);
cpuhp_remove_multi_state(0);
])
])
AC_DEFUN([ZFS_AC_KERNEL_CPU_HOTPLUG], [
AC_MSG_CHECKING([whether CPU hotplug APIs exist])
ZFS_LINUX_TEST_RESULT([cpu_hotplug], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_CPU_HOTPLUG, 1, [yes])
],[
AC_MSG_RESULT(no)
])
])
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