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37f9dac5 RY |
1 | dnl # |
2 | dnl # Linux 3.2 API Change | |
3 | dnl # make_request_fn returns void instead of int. | |
4 | dnl # | |
1a093716 CC |
5 | dnl # Linux 4.4 API Change |
6 | dnl # make_request_fn returns blk_qc_t. | |
7 | dnl # | |
37f9dac5 RY |
8 | AC_DEFUN([ZFS_AC_KERNEL_MAKE_REQUEST_FN], [ |
9 | AC_MSG_CHECKING([whether make_request_fn() returns int]) | |
10 | ZFS_LINUX_TRY_COMPILE([ | |
11 | #include <linux/blkdev.h> | |
12 | ||
13 | int make_request(struct request_queue *q, struct bio *bio) | |
14 | { | |
15 | return (0); | |
16 | } | |
17 | ],[ | |
18 | blk_queue_make_request(NULL, &make_request); | |
19 | ],[ | |
20 | AC_MSG_RESULT(yes) | |
21 | AC_DEFINE(MAKE_REQUEST_FN_RET, int, | |
22 | [make_request_fn() returns int]) | |
23 | AC_DEFINE(HAVE_MAKE_REQUEST_FN_RET_INT, 1, | |
24 | [Noting that make_request_fn() returns int]) | |
25 | ],[ | |
26 | AC_MSG_RESULT(no) | |
27 | AC_MSG_CHECKING([whether make_request_fn() returns void]) | |
28 | ZFS_LINUX_TRY_COMPILE([ | |
29 | #include <linux/blkdev.h> | |
30 | ||
31 | void make_request(struct request_queue *q, struct bio *bio) | |
32 | { | |
33 | return; | |
34 | } | |
35 | ],[ | |
36 | blk_queue_make_request(NULL, &make_request); | |
37 | ],[ | |
38 | AC_MSG_RESULT(yes) | |
39 | AC_DEFINE(MAKE_REQUEST_FN_RET, void, | |
40 | [make_request_fn() returns void]) | |
41 | ],[ | |
1a093716 CC |
42 | AC_MSG_RESULT(no) |
43 | AC_MSG_CHECKING([whether make_request_fn() returns blk_qc_t]) | |
44 | ZFS_LINUX_TRY_COMPILE([ | |
45 | #include <linux/blkdev.h> | |
46 | ||
47 | blk_qc_t make_request(struct request_queue *q, struct bio *bio) | |
48 | { | |
49 | return (BLK_QC_T_NONE); | |
50 | } | |
51 | ],[ | |
52 | blk_queue_make_request(NULL, &make_request); | |
53 | ],[ | |
54 | AC_MSG_RESULT(yes) | |
55 | AC_DEFINE(MAKE_REQUEST_FN_RET, blk_qc_t, | |
56 | [make_request_fn() returns blk_qc_t]) | |
57 | AC_DEFINE(HAVE_MAKE_REQUEST_FN_RET_QC, 1, | |
58 | [Noting that make_request_fn() returns blk_qc_t]) | |
59 | ],[ | |
60 | AC_MSG_ERROR(no - Please file a bug report at | |
61 | https://github.com/zfsonlinux/zfs/issues/new) | |
62 | ]) | |
37f9dac5 RY |
63 | ]) |
64 | ]) | |
65 | ]) |