> +static bool __target_check_io_state(struct se_cmd *se_cmd)
> +{
> + struct se_session *sess = se_cmd->se_sess;
> +
> + assert_spin_locked(&se_session->sess_cmd_lock);
> + WARN_ON_ONCE(!irqs_disabled());
Btw, I looked a the code and can't really see what sess_cmd_lock is
supposed to protect here.
> + sess = cmd->se_sess;
> + if (WARN_ON_ONCE(!sess))
> + continue;
> +
> + spin_lock(&sess->sess_cmd_lock);
> + rc = __target_check_io_state(cmd);
> + spin_unlock(&sess->sess_cmd_lock);
> + if (!rc) {
> + printk("LUN_RESET I/O: non-zero kref_get_unless_zero\n");
> + continue;
> + }
And thus why we care about taking it here.
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