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scsi: Revert "target: iscsi: Wait for all commands to finish before freeing a session"

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Since commit e9d3009cb9 introduced a regression and since the fix for
that regression was not perfect, revert this commit.

Link: https://marc.info/?l=target-devel&m=158157054906195
Cc: Rahul Kundu <rahul.kundu@chelsio.com>
Cc: Mike Marciniszyn <mike.marciniszyn@intel.com>
Cc: Sagi Grimberg <sagi@grimberg.me>
Reported-by: Dakshaja Uppalapati <dakshaja@chelsio.com>
Fixes: e9d3009cb9 ("scsi: target: iscsi: Wait for all commands to finish before freeing a session")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Bart Van Assche 2020-02-12 21:09:00 -08:00 committed by Martin K. Petersen
parent 76261ada16
commit 807b9515b7
2 changed files with 2 additions and 9 deletions
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10
drivers/target/iscsi/iscsi_target.c
View File

@ -1165,9 +1165,7 @@ int iscsit_setup_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
hdr->cmdsn, be32_to_cpu(hdr->data_length), payload_length,
conn->cid);
if (target_get_sess_cmd(&cmd->se_cmd, true) < 0)
return iscsit_add_reject_cmd(cmd,
ISCSI_REASON_WAITING_FOR_LOGOUT, buf);
target_get_sess_cmd(&cmd->se_cmd, true);
cmd->sense_reason = transport_lookup_cmd_lun(&cmd->se_cmd,
scsilun_to_int(&hdr->lun));
@ -2004,9 +2002,7 @@ iscsit_handle_task_mgt_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
conn->sess->se_sess, 0, DMA_NONE,
TCM_SIMPLE_TAG, cmd->sense_buffer + 2);
if (target_get_sess_cmd(&cmd->se_cmd, true) < 0)
return iscsit_add_reject_cmd(cmd,
ISCSI_REASON_WAITING_FOR_LOGOUT, buf);
target_get_sess_cmd(&cmd->se_cmd, true);
/*
* TASK_REASSIGN for ERL=2 / connection stays inside of
@ -4234,8 +4230,6 @@ int iscsit_close_connection(
* must wait until they have completed.
*/
iscsit_check_conn_usage_count(conn);
target_sess_cmd_list_set_waiting(sess->se_sess);
target_wait_for_sess_cmds(sess->se_sess);
ahash_request_free(conn->conn_tx_hash);
if (conn->conn_rx_hash) {

1
include/scsi/iscsi_proto.h
View File

@ -627,7 +627,6 @@ struct iscsi_reject {
#define ISCSI_REASON_BOOKMARK_INVALID 9
#define ISCSI_REASON_BOOKMARK_NO_RESOURCES 10
#define ISCSI_REASON_NEGOTIATION_RESET 11
#define ISCSI_REASON_WAITING_FOR_LOGOUT 12
/* Max. number of Key=Value pairs in a text message */
#define MAX_KEY_VALUE_PAIRS 8192