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target: Set CMD_T_ACTIVE bit for Task Management Requests 

This patch fixes a bug where se_cmd descriptors associated with a
Task Management Request (TMR) where not setting CMD_T_ACTIVE before
being dispatched into target_tmr_work() process context.

This is required in order for transport_generic_free_cmd() ->
transport_wait_for_tasks() to wait on se_cmd->t_transport_stop_comp
if a session reset event occurs while an ABORT_TASK is outstanding
waiting for another I/O to complete.

Cc: Thomas Glanzmann <thomas@glanzmann.de>
Cc: Charalampos Pournaris <charpour@gmail.com>
Cc: stable@vger.kernel.org # 3.10+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
hifive-unleashed-5.1
Nicholas Bellinger 2014-06-09 23:13:20 +00:00
parent 0bcc297e2b
commit f15e9cd910
1 changed files with 6 additions and 0 deletions
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6
drivers/target/target_core_transport.c
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@ -2934,6 +2934,12 @@ static void target_tmr_work(struct work_struct *work)
int transport_generic_handle_tmr(
struct se_cmd *cmd)
{
unsigned long flags;
spin_lock_irqsave(&cmd->t_state_lock, flags);
cmd->transport_state |= CMD_T_ACTIVE;
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
INIT_WORK(&cmd->work, target_tmr_work);
queue_work(cmd->se_dev->tmr_wq, &cmd->work);
return 0;