| dnl # |
| dnl # 2.6.32 - 4.11, statically allocated bdi in request_queue |
| dnl # 4.12 - x.y, dynamically allocated bdi in request_queue |
| dnl # |
| AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_BDI], [ |
| ZFS_LINUX_TEST_SRC([blk_queue_bdi], [ |
| #include <linux/blkdev.h> |
| ],[ |
| struct request_queue q; |
| struct backing_dev_info bdi; |
| q.backing_dev_info = &bdi; |
| ]) |
| ]) |
| |
| AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_BDI], [ |
| AC_MSG_CHECKING([whether blk_queue bdi is dynamic]) |
| ZFS_LINUX_TEST_RESULT([blk_queue_bdi], [ |
| AC_MSG_RESULT(yes) |
| AC_DEFINE(HAVE_BLK_QUEUE_BDI_DYNAMIC, 1, |
| [blk queue backing_dev_info is dynamic]) |
| ],[ |
| AC_MSG_RESULT(no) |
| ]) |
| ]) |
