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target: Add compare_and_write_post() completion callback fall through

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This patch changes target_complete_ok_work() to fall through
after calling the se_cmd->transport_complete_callback() ->
compare_and_write_post() callback, by keying off the existance
of SCF_COMPARE_AND_WRITE_POST.

This is necessary because once SCF_COMPARE_AND_WRITE_POST has
been set by compare_and_write_post(), the SCSI response needs
to be sent via TFO->queue_status().

Cc: Christoph Hellwig <[email protected]>
Cc: Hannes Reinecke <[email protected]>
Cc: Martin Petersen <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: James Bottomley <[email protected]>
Cc: Nicholas Bellinger <[email protected]>
Signed-off-by: Nicholas Bellinger <[email protected]>
This commit is contained in:
Nicholas Bellinger authored and Nicholas Bellinger committed 2013-09-10 16:45:13 -07:00
1 parent 68ff9b9b27
commit a289008749
2 files changed
+12 -10
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drivers/target/target_core_sbc.c
+2 -1
View File
@@ -375,7 +375,8 @@ static sense_reason_t compare_and_write_callback(struct se_cmd *cmd)
buf = kzalloc(cmd->data_length, GFP_KERNEL);
if (!buf) {
pr_err("Unable to allocate compare_and_write buf\n");
return TCM_OUT_OF_RESOURCES;
ret = TCM_OUT_OF_RESOURCES;
goto out;
}
write_sg = kzalloc(sizeof(struct scatterlist) * cmd->t_data_nents,
drivers/target/target_core_transport.c
+10 -9
View File
@@ -1909,17 +1909,18 @@ static void target_complete_ok_work(struct work_struct *work)
sense_reason_t rc;
rc = cmd->transport_complete_callback(cmd);
if (!rc)
if (!rc && !(cmd->se_cmd_flags & SCF_COMPARE_AND_WRITE_POST)) {
return;
} else if (rc) {
ret = transport_send_check_condition_and_sense(cmd,
rc, 0);
if (ret == -EAGAIN || ret == -ENOMEM)
goto queue_full;
ret = transport_send_check_condition_and_sense(cmd,
rc, 0);
if (ret == -EAGAIN || ret == -ENOMEM)
goto queue_full;
transport_lun_remove_cmd(cmd);
transport_cmd_check_stop_to_fabric(cmd);
return;
transport_lun_remove_cmd(cmd);
transport_cmd_check_stop_to_fabric(cmd);
return;
}
}
switch (cmd->data_direction) {