diff options
Diffstat (limited to 'config/kernel-bdev-block-device-operations.m4')
| -rw-r--r-- | config/kernel-bdev-block-device-operations.m4 | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/config/kernel-bdev-block-device-operations.m4 b/config/kernel-bdev-block-device-operations.m4 new file mode 100644 index 000000000..daf14f0f9 --- /dev/null +++ b/config/kernel-bdev-block-device-operations.m4 @@ -0,0 +1,33 @@ +dnl # +dnl # 2.6.x API change +dnl # +AC_DEFUN([ZFS_AC_KERNEL_BDEV_BLOCK_DEVICE_OPERATIONS], [ + AC_MSG_CHECKING([block device operation prototypes]) + ZFS_LINUX_TRY_COMPILE([ + #include <linux/blkdev.h> + ],[ + int (*blk_open) (struct block_device *, fmode_t) = NULL; + int (*blk_release) (struct gendisk *, fmode_t) = NULL; + int (*blk_ioctl) (struct block_device *, fmode_t, + unsigned, unsigned long) = NULL; + int (*blk_compat_ioctl) (struct block_device *, fmode_t, + unsigned, unsigned long) = NULL; + struct block_device_operations blk_ops = { + .open = blk_open, + .release = blk_release, + .ioctl = blk_ioctl, + .compat_ioctl = blk_compat_ioctl, + }; + + blk_ops.open(NULL, 0); + blk_ops.release(NULL, 0); + blk_ops.ioctl(NULL, 0, 0, 0); + blk_ops.compat_ioctl(NULL, 0, 0, 0); + ],[ + 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) + ]) +]) |