config/kernel-blk-requeue-request.m4

   1 dnl #
   2 dnl # 2.6.31 API change
   3 dnl # Request queue peek/retrieval interface cleanup, the
   4 dnl # elv_requeue_request() function has been replaced with the
   5 dnl # blk_requeue_request() function.
   6 dnl #
   7 AC_DEFUN([ZFS_AC_KERNEL_BLK_REQUEUE_REQUEST], [
   8         AC_MSG_CHECKING([whether blk_requeue_request() is available])
   9         ZFS_LINUX_TRY_COMPILE([
  10                 #include <linux/blkdev.h>
  11         ],[
  12                 struct request_queue *q = NULL;
  13                 struct request *req = NULL;
  14                 blk_requeue_request(q, req);
  15         ],[
  16                 AC_MSG_RESULT(yes)
  17                 AC_DEFINE(HAVE_BLK_REQUEUE_REQUEST, 1,
  18                           [blk_requeue_request() is available])
  19         ],[
  20                 AC_MSG_RESULT(no)
  21         ])
  22 ])