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Diffstat (limited to 'config/kernel-hotplug.m4')
| -rw-r--r-- | config/kernel-hotplug.m4 | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/config/kernel-hotplug.m4 b/config/kernel-hotplug.m4 new file mode 100644 index 000000000..e796a6d2e --- /dev/null +++ b/config/kernel-hotplug.m4 @@ -0,0 +1,26 @@ +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) + ]) +]) |