2 dnl # 2.6.38 API change
4 AC_DEFUN([ZFS_AC_KERNEL_SRC_BLOCK_DEVICE_OPERATIONS_CHECK_EVENTS], [
5 ZFS_LINUX_TEST_SRC([block_device_operations_check_events], [
6 #include <linux/blkdev.h>
8 unsigned int blk_check_events(struct gendisk *disk,
9 unsigned int clearing) {
10 (void) disk, (void) clearing;
14 static const struct block_device_operations
15 bops __attribute__ ((unused)) = {
16 .check_events = blk_check_events,
21 AC_DEFUN([ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_CHECK_EVENTS], [
22 AC_MSG_CHECKING([whether bops->check_events() exists])
23 ZFS_LINUX_TEST_RESULT([block_device_operations_check_events], [
26 ZFS_LINUX_TEST_ERROR([bops->check_events()])
31 dnl # 3.10.x API change
33 AC_DEFUN([ZFS_AC_KERNEL_SRC_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID], [
34 ZFS_LINUX_TEST_SRC([block_device_operations_release_void], [
35 #include <linux/blkdev.h>
37 void blk_release(struct gendisk *g, fmode_t mode) {
38 (void) g, (void) mode;
42 static const struct block_device_operations
43 bops __attribute__ ((unused)) = {
45 .release = blk_release,
52 AC_DEFUN([ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID], [
53 AC_MSG_CHECKING([whether bops->release() is void])
54 ZFS_LINUX_TEST_RESULT([block_device_operations_release_void], [
57 ZFS_LINUX_TEST_ERROR([bops->release()])
63 dnl # block_device_operations->revalidate_disk() was removed
65 AC_DEFUN([ZFS_AC_KERNEL_SRC_BLOCK_DEVICE_OPERATIONS_REVALIDATE_DISK], [
66 ZFS_LINUX_TEST_SRC([block_device_operations_revalidate_disk], [
67 #include <linux/blkdev.h>
69 int blk_revalidate_disk(struct gendisk *disk) {
74 static const struct block_device_operations
75 bops __attribute__ ((unused)) = {
76 .revalidate_disk = blk_revalidate_disk,
81 AC_DEFUN([ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_REVALIDATE_DISK], [
82 AC_MSG_CHECKING([whether bops->revalidate_disk() exists])
83 ZFS_LINUX_TEST_RESULT([block_device_operations_revalidate_disk], [
84 AC_DEFINE([HAVE_BLOCK_DEVICE_OPERATIONS_REVALIDATE_DISK], [1],
85 [Define if revalidate_disk() in block_device_operations])
92 AC_DEFUN([ZFS_AC_KERNEL_SRC_BLOCK_DEVICE_OPERATIONS], [
93 ZFS_AC_KERNEL_SRC_BLOCK_DEVICE_OPERATIONS_CHECK_EVENTS
94 ZFS_AC_KERNEL_SRC_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID
95 ZFS_AC_KERNEL_SRC_BLOCK_DEVICE_OPERATIONS_REVALIDATE_DISK
98 AC_DEFUN([ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS], [
99 ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_CHECK_EVENTS
100 ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID
101 ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_REVALIDATE_DISK