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
|
dnl #
dnl # 2.6.x API change
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BDEV_BLOCK_DEVICE_OPERATIONS], [
AC_MSG_CHECKING([block device operation prototypes])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}"
ZFS_LINUX_TRY_COMPILE([
#include <linux/blkdev.h>
int blk_open(struct block_device *bdev, fmode_t mode)
{ return 0; }
int blk_release(struct gendisk *g, fmode_t mode) { return 0; }
int blk_ioctl(struct block_device *bdev, fmode_t mode,
unsigned x, unsigned long y) { return 0; }
int blk_compat_ioctl(struct block_device * bdev, fmode_t mode,
unsigned x, unsigned long y) { return 0; }
static const struct block_device_operations
bops __attribute__ ((unused)) = {
.open = blk_open,
.release = blk_release,
.ioctl = blk_ioctl,
.compat_ioctl = blk_compat_ioctl,
};
],[
],[
AC_MSG_RESULT(struct block_device)
AC_DEFINE(HAVE_BDEV_BLOCK_DEVICE_OPERATIONS, 1,
[struct block_device_operations use bdevs])
],[
AC_MSG_RESULT(struct inode)
])
EXTRA_KCFLAGS="$tmp_flags"
])
|
