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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,
};
], [], [$NO_UNUSED_BUT_SET_VARIABLE])
])
AC_DEFUN([ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_CHECK_EVENTS], [
AC_MSG_CHECKING([whether bops->check_events() exists])
ZFS_LINUX_TEST_RESULT([block_device_operations_check_events], [
AC_MSG_RESULT(yes)
],[
ZFS_LINUX_TEST_ERROR([bops->check_events()])
])
])
dnl #
dnl # 3.10.x API change
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID], [
ZFS_LINUX_TEST_SRC([block_device_operations_release_void], [
#include <linux/blkdev.h>
void blk_release(struct gendisk *g, fmode_t mode) { return; }
static const struct block_device_operations
bops __attribute__ ((unused)) = {
.open = NULL,
.release = blk_release,
.ioctl = NULL,
.compat_ioctl = NULL,
};
], [], [$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)
],[
ZFS_LINUX_TEST_ERROR([bops->release()])
])
])
dnl #
dnl # 5.13 API change
dnl # block_device_operations->revalidate_disk() was removed
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLOCK_DEVICE_OPERATIONS_REVALIDATE_DISK], [
ZFS_LINUX_TEST_SRC([block_device_operations_revalidate_disk], [
#include <linux/blkdev.h>
int blk_revalidate_disk(struct gendisk *disk) {
return(0);
}
static const struct block_device_operations
bops __attribute__ ((unused)) = {
.revalidate_disk = blk_revalidate_disk,
};
], [], [$NO_UNUSED_BUT_SET_VARIABLE])
])
AC_DEFUN([ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_REVALIDATE_DISK], [
AC_MSG_CHECKING([whether bops->revalidate_disk() exists])
ZFS_LINUX_TEST_RESULT([block_device_operations_revalidate_disk], [
AC_DEFINE([HAVE_BLOCK_DEVICE_OPERATIONS_REVALIDATE_DISK], [1],
[Define if revalidate_disk() in block_device_operations])
AC_MSG_RESULT(yes)
],[
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
ZFS_AC_KERNEL_SRC_BLOCK_DEVICE_OPERATIONS_REVALIDATE_DISK
])
AC_DEFUN([ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS], [
ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_CHECK_EVENTS
ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID
ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_REVALIDATE_DISK
])
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