config/kernel-kmap-atomic-args.m4

   1 dnl #
   2 dnl # 2.6.37 API change
   3 dnl # kmap_atomic changed from assigning hard-coded named slot to using
   4 dnl # push/pop based dynamical allocation.
   5 dnl #
   6 AC_DEFUN([ZFS_AC_KERNEL_KMAP_ATOMIC_ARGS], [
   7         AC_MSG_CHECKING([whether kmap_atomic wants 1 args])
   8         ZFS_LINUX_TRY_COMPILE([
   9                 #include <linux/pagemap.h>
  10         ],[
  11                 struct page page;
  12                 kmap_atomic(&page);
  13         ],[
  14                 AC_MSG_RESULT(yes)
  15                 AC_DEFINE(HAVE_1ARG_KMAP_ATOMIC, 1,
  16                           [kmap_atomic wants 1 args])
  17         ],[
  18                 AC_MSG_RESULT(no)
  19         ])
  20 ])