config/kernel-fallocate-pax.m4

   1 dnl #
   2 dnl # PaX Linux 2.6.38 - 3.x API
   3 dnl #
   4 AC_DEFUN([SPL_AC_PAX_KERNEL_FILE_FALLOCATE], [
   5         AC_MSG_CHECKING([whether fops->fallocate() exists])
   6         SPL_LINUX_TRY_COMPILE([
   7                 #include <linux/fs.h>
   8         ],[
   9                 long (*fallocate) (struct file *, int, loff_t, loff_t) = NULL;
  10                 struct file_operations_no_const fops __attribute__ ((unused)) = {
  11                         .fallocate = fallocate,
  12                 };
  13         ],[
  14                 AC_MSG_RESULT(yes)
  15                 AC_DEFINE(HAVE_FILE_FALLOCATE, 1, [fops->fallocate() exists])
  16         ],[
  17                 AC_MSG_RESULT(no)
  18         ])
  19 ])