1dnl # 2dnl # 4.6 API change 3dnl # Added CPU hotplug APIs 4dnl # 5AC_DEFUN([ZFS_AC_KERNEL_SRC_CPU_HOTPLUG], [ 6 ZFS_LINUX_TEST_SRC([cpu_hotplug], [ 7 #include <linux/cpuhotplug.h> 8 ],[ 9 enum cpuhp_state state = CPUHP_ONLINE; 10 int (*fp)(unsigned int, struct hlist_node *) = NULL; 11 cpuhp_state_add_instance_nocalls(0, (struct hlist_node *)NULL); 12 cpuhp_state_remove_instance_nocalls(0, (struct hlist_node *)NULL); 13 cpuhp_setup_state_multi(state, "", fp, fp); 14 cpuhp_remove_multi_state(0); 15 ]) 16]) 17 18AC_DEFUN([ZFS_AC_KERNEL_CPU_HOTPLUG], [ 19 AC_MSG_CHECKING([whether CPU hotplug APIs exist]) 20 ZFS_LINUX_TEST_RESULT([cpu_hotplug], [ 21 AC_MSG_RESULT(yes) 22 AC_DEFINE(HAVE_CPU_HOTPLUG, 1, [yes]) 23 ],[ 24 AC_MSG_RESULT(no) 25 ]) 26]) 27