config/kernel-invalidate-bdev-args.m4

   1 dnl #
   2 dnl # 2.6.22 API change
   3 dnl # Unused destroy_dirty_buffers arg removed from prototype.
   4 dnl #
   5 AC_DEFUN([ZFS_AC_KERNEL_INVALIDATE_BDEV_ARGS], [
   6         AC_MSG_CHECKING([whether invalidate_bdev() wants 1 arg])
   7         ZFS_LINUX_TRY_COMPILE([
   8                 #include <linux/buffer_head.h>
   9         ],[
  10                 struct block_device *bdev = NULL;
  11                 invalidate_bdev(bdev);
  12         ],[
  13                 AC_MSG_RESULT(yes)
  14                 AC_DEFINE(HAVE_1ARG_INVALIDATE_BDEV, 1,
  15                           [invalidate_bdev() wants 1 arg])
  16         ],[
  17                 AC_MSG_RESULT(no)
  18         ])
  19 ])