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scsi: target: tcm_fc: Convert to new submission API

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target_submit_cmd() is now only for simple drivers that do their own sync
during shutdown and do not use target_stop_session().

tcm_fc uses target_stop_session() to sync session shutdown with LIO core,
so we use target_init_cmd(), target_submit_prep(), target_submit(), because
target_init_cmd() will now detect the target_stop_session() call and return
an error.

Link: https://lore.kernel.org/r/20210227170006.5077-14-michael.christie@oracle.com
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Mike Christie 2021-02-27 10:59:54 -06:00 committed by Martin K. Petersen
parent 1f48b065da
commit 47edc84f33
1 changed files with 10 additions and 4 deletions
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14
drivers/target/tcm_fc/tfc_cmd.c
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@ -543,16 +543,22 @@ static void ft_send_work(struct work_struct *work)
fc_seq_set_resp(cmd->seq, ft_recv_seq, cmd);
cmd->se_cmd.tag = fc_seq_exch(cmd->seq)->rxid;
/*
* Use a single se_cmd->cmd_kref as we expect to release se_cmd
* directly from ft_check_stop_free callback in response path.
*/
if (target_submit_cmd(&cmd->se_cmd, cmd->sess->se_sess, fcp->fc_cdb,
&cmd->ft_sense_buffer[0], scsilun_to_int(&fcp->fc_lun),
ntohl(fcp->fc_dl), task_attr, data_dir,
TARGET_SCF_ACK_KREF))
if (target_init_cmd(&cmd->se_cmd, cmd->sess->se_sess,
&cmd->ft_sense_buffer[0],
scsilun_to_int(&fcp->fc_lun), ntohl(fcp->fc_dl),
task_attr, data_dir, TARGET_SCF_ACK_KREF))
goto err;
if (target_submit_prep(&cmd->se_cmd, fcp->fc_cdb, NULL, 0, NULL, 0,
NULL, 0))
return;
target_submit(&cmd->se_cmd);
pr_debug("r_ctl %x target_submit_cmd %p\n", fh->fh_r_ctl, cmd);
return;