illumos gate

Analysis by George Wilson:

Yesterday I hit an issue that caused the pool to suspend. After fixing the
issue I tried to resume the I/Os by issuing a 'spool clear' on the pool. This
failed indicating the pool was suspended. It never even tried to resume the
I/Os. Investigating this failure I found this:

static void
zfs_ioctl_init(void)
{
<snip>
        zfs_ioctl_register_pool(ZFS_IOC_CLEAR, zfs_ioc_clear,
            zfs_secpolicy_config, B_TRUE, POOL_CHECK_SUSPENDED);

The fact that the clear action is checking to see if the pool is suspended is
wrong.