config/kernel-blk-queue-max-hw-sectors.m4

   1 dnl #
   2 dnl # 2.6.34 API change
   3 dnl # blk_queue_max_hw_sectors() replaces blk_queue_max_sectors().
   4 dnl #
   5 AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_MAX_HW_SECTORS], [
   6         ZFS_LINUX_TEST_SRC([blk_queue_max_hw_sectors], [
   7                 #include <linux/blkdev.h>
   8         ], [
   9                 struct request_queue *q = NULL;
  10                 (void) blk_queue_max_hw_sectors(q, BLK_SAFE_MAX_SECTORS);
  11         ], [$NO_UNUSED_BUT_SET_VARIABLE])
  12 ])
  13
  14 AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_MAX_HW_SECTORS], [
  15         AC_MSG_CHECKING([whether blk_queue_max_hw_sectors() is available])
  16         ZFS_LINUX_TEST_RESULT([blk_queue_max_hw_sectors], [
  17                 AC_MSG_RESULT(yes)
  18                 AC_DEFINE(HAVE_BLK_QUEUE_MAX_HW_SECTORS, 1,
  19                     [blk_queue_max_hw_sectors() is available])
  20         ],[
  21                 AC_MSG_RESULT(no)
  22         ])
  23 ])