dnl # dnl # 2.6.31 API change dnl # Request queue peek/retrieval interface cleanup, the dnl # elv_requeue_request() function has been replaced with the dnl # blk_requeue_request() function. dnl # AC_DEFUN([ZFS_AC_KERNEL_BLK_REQUEUE_REQUEST], [ AC_MSG_CHECKING([whether blk_requeue_request() is available]) tmp_flags="$EXTRA_KCFLAGS" EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}" ZFS_LINUX_TRY_COMPILE([ #include <linux/blkdev.h> ],[ struct request_queue *q = NULL; struct request *req = NULL; blk_requeue_request(q, req); ],[ AC_MSG_RESULT(yes) AC_DEFINE(HAVE_BLK_REQUEUE_REQUEST, 1, [blk_requeue_request() is available]) ],[ AC_MSG_RESULT(no) ]) EXTRA_KCFLAGS="$tmp_flags" ])