Martin Matuska 83b4af1142 ZFS expects a copyout of zfs_cmd_t on an ioctl error. Our sys_ioctl() ... doesn't copyout in this case. To solve this issue a new struct zfs_iocparm_t is introduced consisting of: - zfs_ioctl_version (future backwards compatibility purposes) - user space pointer to zfs_cmd_t (copyin and copyout) - size of zfs_cmd_t (verification purposes) The copyin and copyout of zfs_cmd_t is now done the illumos (vendor) way what makes porting of new changes easier and ensures correct behavior if returning an error. MFC after: 10 days		2013-04-09 22:27:44 +00:00
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opensolaris	ZFS expects a copyout of zfs_cmd_t on an ioctl error. Our sys_ioctl()	2013-04-09 22:27:44 +00:00