1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
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_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_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])
],[
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])
],[
ZFS_LINUX_TEST_ERROR([make_request_fn])
])
])
])
])
])
|
