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.
7 AC_DEFUN([ZFS_AC_KERNEL_BLK_REQUEUE_REQUEST], [
8 AC_MSG_CHECKING([whether blk_requeue_request() is available])
9 tmp_flags="$EXTRA_KCFLAGS"
10 EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}"
11 ZFS_LINUX_TRY_COMPILE([
12 #include <linux/blkdev.h>
14 struct request_queue *q = NULL;
15 struct request *req = NULL;
16 blk_requeue_request(q, req);
19 AC_DEFINE(HAVE_BLK_REQUEUE_REQUEST, 1,
20 [blk_requeue_request() is available])
24 EXTRA_KCFLAGS="$tmp_flags"