zfs-builds-mm/zfs-0.8.5/config/kernel-block-device-operations.m4
2020-10-22 13:48:46 +02:00

67 lines
1.9 KiB
Text

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
])