3.5.7.27 -stable review patch. If anyone has any objections, please let me
know.
------------------
From: Nicholas Bellinger <n...@linux-iscsi.org>
commit 29f4c090079f442ea2723d292e4e64f0b6ac1f27 upstream.
This patch fixes a bug in delayed Task Aborted Status (TAS) handling,
where transport_send_task_abort() was not returning for the case
when the se_tfo->write_pending() callback indicated that last fabric
specific WRITE PDU had not yet been received.
It also adds an explicit cmd->scsi_status = SAM_STAT_TASK_ABORTED
assignment within transport_check_aborted_status() to avoid the case
where se_tfo->queue_status() is called when the SAM_STAT_TASK_ABORTED
assignment + ->queue_status() in transport_send_task_abort() does not
occur once SCF_SENT_DELAYED_TAS has been set.
Signed-off-by: Nicholas Bellinger <n...@linux-iscsi.org>
[ luis: backported to 3.5: adjusted context ]
Signed-off-by: Luis Henriques <luis.henriq...@canonical.com>
---
drivers/target/target_core_transport.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/target/target_core_transport.c
b/drivers/target/target_core_transport.c
index 047f49a..3223867 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -4263,6 +4263,7 @@ int transport_check_aborted_status(struct se_cmd *cmd,
int send_status)
cmd->se_tfo->get_task_tag(cmd));
cmd->se_cmd_flags |= SCF_SENT_DELAYED_TAS;
+ cmd->scsi_status = SAM_STAT_TASK_ABORTED;
cmd->se_tfo->queue_status(cmd);
ret = 1;
}
@@ -4291,6 +4292,7 @@ void transport_send_task_abort(struct se_cmd *cmd)
if (cmd->se_tfo->write_pending_status(cmd) != 0) {
cmd->transport_state |= CMD_T_ABORTED;
smp_mb__after_atomic_inc();
+ return;
}
}
cmd->scsi_status = SAM_STAT_TASK_ABORTED;
--
1.8.3.2
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