| dnl # |
| dnl # Check for make_request_fn interface. |
| dnl # |
| AC_DEFUN([ZFS_AC_KERNEL_SRC_MAKE_REQUEST_FN], [ |
| ZFS_LINUX_TEST_SRC([make_request_fn_int], [ |
| #include <linux/blkdev.h> |
| int make_request(struct request_queue *q, |
| struct bio *bio) { return (0); } |
| ],[ |
| blk_queue_make_request(NULL, &make_request); |
| ]) |
| |
| ZFS_LINUX_TEST_SRC([make_request_fn_void], [ |
| #include <linux/blkdev.h> |
| void make_request(struct request_queue *q, |
| struct bio *bio) { return; } |
| ],[ |
| blk_queue_make_request(NULL, &make_request); |
| ]) |
| |
| ZFS_LINUX_TEST_SRC([make_request_fn_blk_qc_t], [ |
| #include <linux/blkdev.h> |
| blk_qc_t make_request(struct request_queue *q, |
| struct bio *bio) { return (BLK_QC_T_NONE); } |
| ],[ |
| blk_queue_make_request(NULL, &make_request); |
| ]) |
| |
| ZFS_LINUX_TEST_SRC([blk_alloc_queue_request_fn], [ |
| #include <linux/blkdev.h> |
| blk_qc_t make_request(struct request_queue *q, |
| struct bio *bio) { return (BLK_QC_T_NONE); } |
| ],[ |
| struct request_queue *q __attribute__ ((unused)); |
| q = blk_alloc_queue(make_request, NUMA_NO_NODE); |
| ]) |
| |
| ZFS_LINUX_TEST_SRC([block_device_operations_submit_bio], [ |
| #include <linux/blkdev.h> |
| ],[ |
| struct block_device_operations o; |
| o.submit_bio = NULL; |
| ]) |
| ]) |
| |
| AC_DEFUN([ZFS_AC_KERNEL_MAKE_REQUEST_FN], [ |
| dnl # Checked as part of the blk_alloc_queue_request_fn test |
| dnl # |
| dnl # Linux 5.9 API Change |
| dnl # make_request_fn was moved into block_device_operations->submit_bio |
| dnl # |
| AC_MSG_CHECKING([whether submit_bio is member of struct block_device_operations]) |
| ZFS_LINUX_TEST_RESULT([block_device_operations_submit_bio], [ |
| AC_MSG_RESULT(yes) |
| |
| AC_DEFINE(HAVE_SUBMIT_BIO_IN_BLOCK_DEVICE_OPERATIONS, 1, |
| [submit_bio is member of struct block_device_operations]) |
| ],[ |
| dnl # Checked as part of the blk_alloc_queue_request_fn test |
| dnl # |
| dnl # Linux 5.7 API Change |
| dnl # blk_alloc_queue() expects request function. |
| dnl # |
| AC_MSG_CHECKING([whether blk_alloc_queue() expects request function]) |
| ZFS_LINUX_TEST_RESULT([blk_alloc_queue_request_fn], [ |
| AC_MSG_RESULT(yes) |
| |
| dnl # Checked as part of the blk_alloc_queue_request_fn test |
| AC_MSG_CHECKING([whether make_request_fn() returns blk_qc_t]) |
| AC_MSG_RESULT(yes) |
| |
| AC_DEFINE(HAVE_BLK_ALLOC_QUEUE_REQUEST_FN, 1, |
| [blk_alloc_queue() expects request function]) |
| AC_DEFINE(MAKE_REQUEST_FN_RET, blk_qc_t, |
| [make_request_fn() return type]) |
| AC_DEFINE(HAVE_MAKE_REQUEST_FN_RET_QC, 1, |
| [Noting that make_request_fn() returns blk_qc_t]) |
| ],[ |
| AC_MSG_RESULT(no) |
| |
| dnl # |
| dnl # Linux 3.2 API Change |
| dnl # make_request_fn returns void. |
| dnl # |
| AC_MSG_CHECKING([whether make_request_fn() returns void]) |
| ZFS_LINUX_TEST_RESULT([make_request_fn_void], [ |
| AC_MSG_RESULT(yes) |
| AC_DEFINE(MAKE_REQUEST_FN_RET, void, |
| [make_request_fn() return type]) |
| AC_DEFINE(HAVE_MAKE_REQUEST_FN_RET_VOID, 1, |
| [Noting that make_request_fn() returns void]) |
| ],[ |
| AC_MSG_RESULT(no) |
| |
| dnl # |
| dnl # Linux 4.4 API Change |
| dnl # make_request_fn returns blk_qc_t. |
| dnl # |
| AC_MSG_CHECKING( |
| [whether make_request_fn() returns blk_qc_t]) |
| ZFS_LINUX_TEST_RESULT([make_request_fn_blk_qc_t], [ |
| AC_MSG_RESULT(yes) |
| AC_DEFINE(MAKE_REQUEST_FN_RET, blk_qc_t, |
| [make_request_fn() return type]) |
| AC_DEFINE(HAVE_MAKE_REQUEST_FN_RET_QC, 1, |
| [Noting that make_request_fn() ] |
| [returns blk_qc_t]) |
| ],[ |
| AC_MSG_RESULT(no) |
| |
| dnl # |
| dnl # Legacy API |
| dnl # make_request_fn returns int. |
| dnl # |
| AC_MSG_CHECKING( |
| [whether make_request_fn() returns int]) |
| ZFS_LINUX_TEST_RESULT([make_request_fn_int], [ |
| AC_MSG_RESULT(yes) |
| AC_DEFINE(MAKE_REQUEST_FN_RET, int, |
| [make_request_fn() return type]) |
| AC_DEFINE(HAVE_MAKE_REQUEST_FN_RET_INT, |
| 1, [Noting that make_request_fn() ] |
| [returns int]) |
| ],[ |
| ZFS_LINUX_TEST_ERROR([make_request_fn]) |
| ]) |
| ]) |
| ]) |
| ]) |
| ]) |
| ]) |