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sbp-target: Convert to TARGET_SCF_ACK_KREF I/O krefs
This patch converts sbp-target to modern TARGET_SCF_ACK_KREF usage for sbp_send_status() callback path, and drops the now obsolete sbp_free_request() failure path calls. Acked-by: Chris Boot <bootc@bootc.net> Tested-by: Chris Boot <bootc@bootc.net> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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5a3ee221b5
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5f27edad95
1 changed files with 16 additions and 14 deletions
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@ -893,7 +893,6 @@ static void tgt_agent_process_work(struct work_struct *work)
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STATUS_BLOCK_SBP_STATUS(
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SBP_STATUS_REQ_TYPE_NOTSUPP));
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sbp_send_status(req);
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sbp_free_request(req);
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return;
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case 3: /* Dummy ORB */
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req->status.status |= cpu_to_be32(
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@ -904,7 +903,6 @@ static void tgt_agent_process_work(struct work_struct *work)
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STATUS_BLOCK_SBP_STATUS(
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SBP_STATUS_DUMMY_ORB_COMPLETE));
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sbp_send_status(req);
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sbp_free_request(req);
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return;
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default:
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BUG();
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@ -989,7 +987,6 @@ static void tgt_agent_fetch_work(struct work_struct *work)
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spin_unlock_bh(&agent->lock);
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sbp_send_status(req);
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sbp_free_request(req);
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return;
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}
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@ -1236,7 +1233,7 @@ static void sbp_handle_command(struct sbp_target_request *req)
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req->se_cmd.tag = req->orb_pointer;
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if (target_submit_cmd(&req->se_cmd, sess->se_sess, req->cmd_buf,
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req->sense_buf, unpacked_lun, data_length,
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TCM_SIMPLE_TAG, data_dir, 0))
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TCM_SIMPLE_TAG, data_dir, TARGET_SCF_ACK_KREF))
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goto err;
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return;
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@ -1248,7 +1245,6 @@ static void sbp_handle_command(struct sbp_target_request *req)
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STATUS_BLOCK_LEN(1) |
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STATUS_BLOCK_SBP_STATUS(SBP_STATUS_UNSPECIFIED_ERROR));
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sbp_send_status(req);
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sbp_free_request(req);
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}
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/*
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@ -1347,22 +1343,29 @@ static int sbp_rw_data(struct sbp_target_request *req)
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static int sbp_send_status(struct sbp_target_request *req)
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{
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int ret, length;
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int rc, ret = 0, length;
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struct sbp_login_descriptor *login = req->login;
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length = (((be32_to_cpu(req->status.status) >> 24) & 0x07) + 1) * 4;
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ret = sbp_run_request_transaction(req, TCODE_WRITE_BLOCK_REQUEST,
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rc = sbp_run_request_transaction(req, TCODE_WRITE_BLOCK_REQUEST,
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login->status_fifo_addr, &req->status, length);
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if (ret != RCODE_COMPLETE) {
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pr_debug("sbp_send_status: write failed: 0x%x\n", ret);
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return -EIO;
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if (rc != RCODE_COMPLETE) {
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pr_debug("sbp_send_status: write failed: 0x%x\n", rc);
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ret = -EIO;
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goto put_ref;
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}
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pr_debug("sbp_send_status: status write complete for ORB: 0x%llx\n",
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req->orb_pointer);
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return 0;
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/*
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* Drop the extra ACK_KREF reference taken by target_submit_cmd()
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* ahead of sbp_check_stop_free() -> transport_generic_free_cmd()
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* final se_cmd->cmd_kref put.
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*/
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put_ref:
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target_put_sess_cmd(&req->se_cmd);
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return ret;
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}
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static void sbp_sense_mangle(struct sbp_target_request *req)
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@ -1822,8 +1825,7 @@ static int sbp_check_stop_free(struct se_cmd *se_cmd)
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struct sbp_target_request *req = container_of(se_cmd,
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struct sbp_target_request, se_cmd);
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transport_generic_free_cmd(&req->se_cmd, 0);
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return 1;
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return transport_generic_free_cmd(&req->se_cmd, 0);
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}
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static int sbp_count_se_tpg_luns(struct se_portal_group *tpg)
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