config/kernel-get-gendisk.m4

   1 dnl #
   2 dnl # 2.6.34 API change
   3 dnl # Verify the get_gendisk() symbol is available.
   4 dnl #
   5 AC_DEFUN([ZFS_AC_KERNEL_GET_GENDISK],
   6         [AC_MSG_CHECKING([whether get_gendisk() is available])
   7         ZFS_LINUX_TRY_COMPILE_SYMBOL([
   8                 #include <linux/genhd.h>
   9         ], [
  10                 get_gendisk(0, NULL);
  11         ], [get_gendisk], [block/genhd.c], [
  12                 AC_MSG_RESULT(yes)
  13                 AC_DEFINE(HAVE_GET_GENDISK, 1, [get_gendisk() is available])
  14         ], [
  15                 AC_MSG_RESULT(no)
  16         ])
  17 ])