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
|
dnl #
dnl # 2.6.38 API change
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLOCK_DEVICE_OPERATIONS_CHECK_EVENTS], [
ZFS_LINUX_TEST_SRC([block_device_operations_check_events], [
#include <linux/blkdev.h>
unsigned int blk_check_events(struct gendisk *disk,
unsigned int clearing) { return (0); }
static const struct block_device_operations
bops __attribute__ ((unused)) = {
.check_events = blk_check_events,
};
], [], [$NO_UNUSED_BUT_SET_VARIABLE])
])
AC_DEFUN([ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_CHECK_EVENTS], [
AC_MSG_CHECKING([whether bops->check_events() exists])
ZFS_LINUX_TEST_RESULT([block_device_operations_check_events], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLOCK_DEVICE_OPERATIONS_CHECK_EVENTS, 1,
[bops->check_events() exists])
],[
AC_MSG_RESULT(no)
])
])
dnl #
dnl # 3.10.x API change
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID], [
ZFS_LINUX_TEST_SRC([block_device_operations_release_void], [
#include <linux/blkdev.h>
void blk_release(struct gendisk *g, fmode_t mode) { return; }
static const struct block_device_operations
bops __attribute__ ((unused)) = {
.open = NULL,
.release = blk_release,
.ioctl = NULL,
.compat_ioctl = NULL,
};
], [], [$NO_UNUSED_BUT_SET_VARIABLE])
])
AC_DEFUN([ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID], [
AC_MSG_CHECKING([whether bops->release() is void])
ZFS_LINUX_TEST_RESULT([block_device_operations_release_void], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID, 1,
[bops->release() returns void])
],[
AC_MSG_RESULT(no)
])
])
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLOCK_DEVICE_OPERATIONS], [
ZFS_AC_KERNEL_SRC_BLOCK_DEVICE_OPERATIONS_CHECK_EVENTS
ZFS_AC_KERNEL_SRC_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID
])
AC_DEFUN([ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS], [
ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_CHECK_EVENTS
ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID
])
|
