dnl # dnl # 2.6.31 API change dnl # AC_DEFUN([ZFS_AC_KERNEL_BLK_RQ_BYTES], [ AC_MSG_CHECKING([whether blk_rq_bytes() is available]) ZFS_LINUX_TRY_COMPILE([ #include ],[ struct request *req = NULL; (void) blk_rq_bytes(req); ],[ AC_MSG_RESULT(yes) AC_DEFINE(HAVE_BLK_RQ_BYTES, 1, [blk_rq_bytes() is available]) ],[ AC_MSG_RESULT(no) ]) ])