diff options
Diffstat (limited to 'config/kernel-vm_node_stat.m4')
| -rw-r--r-- | config/kernel-vm_node_stat.m4 | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/config/kernel-vm_node_stat.m4 b/config/kernel-vm_node_stat.m4 new file mode 100644 index 000000000..e1c42f884 --- /dev/null +++ b/config/kernel-vm_node_stat.m4 @@ -0,0 +1,22 @@ +dnl # +dnl # 4.8 API change +dnl # kernel vm counters change +dnl # +AC_DEFUN([ZFS_AC_KERNEL_VM_NODE_STAT], [ + AC_MSG_CHECKING([whether to use vm_node_stat based fn's]) + ZFS_LINUX_TRY_COMPILE([ + #include <linux/mm.h> + #include <linux/vmstat.h> + ],[ + int a __attribute__ ((unused)) = NR_VM_NODE_STAT_ITEMS; + long x __attribute__ ((unused)) = + atomic_long_read(&vm_node_stat[0]); + (void) global_node_page_state(0); + ],[ + AC_MSG_RESULT(yes) + AC_DEFINE(ZFS_GLOBAL_NODE_PAGE_STATE, 1, + [using global_node_page_state()]) + ],[ + AC_MSG_RESULT(no) + ]) +]) |