config/kernel-vm_node_stat.m4

   1 dnl #
   2 dnl # 4.8 API change
   3 dnl # kernel vm counters change
   4 dnl #
   5 AC_DEFUN([ZFS_AC_KERNEL_VM_NODE_STAT], [
   6         AC_MSG_CHECKING([whether to use vm_node_stat based fn's])
   7         ZFS_LINUX_TRY_COMPILE([
   8                 #include <linux/mm.h>
   9                 #include <linux/vmstat.h>
  10         ],[
  11                         int a __attribute__ ((unused)) = NR_VM_NODE_STAT_ITEMS;
  12                         long x __attribute__ ((unused)) =
  13                                 atomic_long_read(&vm_node_stat[0]);
  14                         (void) global_node_page_state(0);
  15         ],[
  16                 AC_MSG_RESULT(yes)
  17                 AC_DEFINE(ZFS_GLOBAL_NODE_PAGE_STATE, 1,
  18                         [using global_node_page_state()])
  19         ],[
  20                 AC_MSG_RESULT(no)
  21         ])
  22 ])