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IB/srpt: Fix abort handling

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Let the target core check the CMD_T_ABORTED flag instead of the SRP
target driver. Hence remove the transport_check_aborted_status()
call. Since state == SRPT_STATE_CMD_RSP_SENT is something that really
should not happen, do not try to recover if srpt_queue_response() is
called for an I/O context that is in that state. This patch is a bug
fix because the srpt_abort_cmd() call is misplaced - if that function
is called from srpt_queue_response() it should either be called
before the command state is changed or after the response has been
sent.

Signed-off-by: Bart Van Assche <[email protected]>
Reviewed-by: Hannes Reinecke <[email protected]>
Cc: Doug Ledford <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Andy Grover <[email protected]>
Cc: David Disseldorp <[email protected]>
Signed-off-by: Nicholas Bellinger <[email protected]>
This commit is contained in:
Bart Van Assche 2017-05-04 15:50:53 -07:00 • committed by Nicholas Bellinger
commit 55d694275f
1 changed files with 1 additions and 5 deletions
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6
drivers/infiniband/ulp/srpt/ib_srpt.c
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@ -2302,12 +2302,8 @@ static void srpt_queue_response(struct se_cmd *cmd)
}
spin_unlock_irqrestore(&ioctx->spinlock, flags);
if (unlikely(transport_check_aborted_status(&ioctx->cmd, false)
|| WARN_ON_ONCE(state == SRPT_STATE_CMD_RSP_SENT))) {
atomic_inc(&ch->req_lim_delta);
srpt_abort_cmd(ioctx);
if (unlikely(WARN_ON_ONCE(state == SRPT_STATE_CMD_RSP_SENT)))
return;
}
/* For read commands, transfer the data to the initiator. */
if (ioctx->cmd.data_direction == DMA_FROM_DEVICE &&