2 dnl # 2.6.31 API change
3 dnl # Request queue peek/retrieval interface cleanup, the blk_fetch_request()
4 dnl # function replaces the elv_next_request() and blk_fetch_request()
5 dnl # functions. The updated blk_fetch_request() function returns the
6 dnl # next available request and removed it from the request queue.
8 AC_DEFUN([ZFS_AC_KERNEL_BLK_FETCH_REQUEST], [
9 AC_MSG_CHECKING([whether blk_fetch_request() is available])
10 ZFS_LINUX_TRY_COMPILE([
11 #include <linux/blkdev.h>
13 struct request_queue *q = NULL;
14 (void) blk_fetch_request(q);
17 AC_DEFINE(HAVE_BLK_FETCH_REQUEST, 1,
18 [blk_fetch_request() is available])