diff options
Diffstat (limited to 'drivers/target')
| -rw-r--r-- | drivers/target/iscsi/iscsi_target.c | 82 | ||||
| -rw-r--r-- | drivers/target/iscsi/iscsi_target.h | 1 | ||||
| -rw-r--r-- | drivers/target/iscsi/iscsi_target_configfs.c | 5 | ||||
| -rw-r--r-- | drivers/target/iscsi/iscsi_target_login.c | 5 | ||||
| -rw-r--r-- | drivers/target/target_core_configfs.c | 4 | ||||
| -rw-r--r-- | drivers/target/target_core_device.c | 4 | ||||
| -rw-r--r-- | drivers/target/target_core_spc.c | 13 | ||||
| -rw-r--r-- | drivers/target/target_core_tmr.c | 6 | ||||
| -rw-r--r-- | drivers/target/target_core_transport.c | 3 | ||||
| -rw-r--r-- | drivers/target/target_core_ua.c | 8 |
10 files changed, 57 insertions, 74 deletions
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index 09e55ea0bf5d..59379d662626 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -4301,30 +4301,37 @@ int iscsit_close_connection( if (!atomic_read(&sess->session_reinstatement) && atomic_read(&sess->session_fall_back_to_erl0)) { spin_unlock_bh(&sess->conn_lock); + complete_all(&sess->session_wait_comp); iscsit_close_session(sess); return 0; } else if (atomic_read(&sess->session_logout)) { pr_debug("Moving to TARG_SESS_STATE_FREE.\n"); sess->session_state = TARG_SESS_STATE_FREE; - spin_unlock_bh(&sess->conn_lock); - if (atomic_read(&sess->sleep_on_sess_wait_comp)) - complete(&sess->session_wait_comp); + if (atomic_read(&sess->session_close)) { + spin_unlock_bh(&sess->conn_lock); + complete_all(&sess->session_wait_comp); + iscsit_close_session(sess); + } else { + spin_unlock_bh(&sess->conn_lock); + } return 0; } else { pr_debug("Moving to TARG_SESS_STATE_FAILED.\n"); sess->session_state = TARG_SESS_STATE_FAILED; - if (!atomic_read(&sess->session_continuation)) { - spin_unlock_bh(&sess->conn_lock); + if (!atomic_read(&sess->session_continuation)) iscsit_start_time2retain_handler(sess); - } else - spin_unlock_bh(&sess->conn_lock); - if (atomic_read(&sess->sleep_on_sess_wait_comp)) - complete(&sess->session_wait_comp); + if (atomic_read(&sess->session_close)) { + spin_unlock_bh(&sess->conn_lock); + complete_all(&sess->session_wait_comp); + iscsit_close_session(sess); + } else { + spin_unlock_bh(&sess->conn_lock); + } return 0; } @@ -4368,8 +4375,7 @@ int iscsit_close_session(struct iscsi_session *sess) * restart the timer and exit. */ if (!in_interrupt()) { - if (iscsit_check_session_usage_count(sess) == 1) - iscsit_stop_session(sess, 1, 1); + iscsit_check_session_usage_count(sess); } else { if (iscsit_check_session_usage_count(sess) == 2) { atomic_set(&sess->session_logout, 0); @@ -4430,9 +4436,9 @@ static void iscsit_logout_post_handler_closesession( complete(&conn->conn_logout_comp); iscsit_dec_conn_usage_count(conn); + atomic_set(&sess->session_close, 1); iscsit_stop_session(sess, sleep, sleep); iscsit_dec_session_usage_count(sess); - iscsit_close_session(sess); } static void iscsit_logout_post_handler_samecid( @@ -4567,49 +4573,6 @@ void iscsit_fail_session(struct iscsi_session *sess) sess->session_state = TARG_SESS_STATE_FAILED; } -int iscsit_free_session(struct iscsi_session *sess) -{ - u16 conn_count = atomic_read(&sess->nconn); - struct iscsi_conn *conn, *conn_tmp = NULL; - int is_last; - - spin_lock_bh(&sess->conn_lock); - atomic_set(&sess->sleep_on_sess_wait_comp, 1); - - list_for_each_entry_safe(conn, conn_tmp, &sess->sess_conn_list, - conn_list) { - if (conn_count == 0) - break; - - if (list_is_last(&conn->conn_list, &sess->sess_conn_list)) { - is_last = 1; - } else { - iscsit_inc_conn_usage_count(conn_tmp); - is_last = 0; - } - iscsit_inc_conn_usage_count(conn); - - spin_unlock_bh(&sess->conn_lock); - iscsit_cause_connection_reinstatement(conn, 1); - spin_lock_bh(&sess->conn_lock); - - iscsit_dec_conn_usage_count(conn); - if (is_last == 0) - iscsit_dec_conn_usage_count(conn_tmp); - - conn_count--; - } - - if (atomic_read(&sess->nconn)) { - spin_unlock_bh(&sess->conn_lock); - wait_for_completion(&sess->session_wait_comp); - } else - spin_unlock_bh(&sess->conn_lock); - - iscsit_close_session(sess); - return 0; -} - void iscsit_stop_session( struct iscsi_session *sess, int session_sleep, @@ -4620,8 +4583,6 @@ void iscsit_stop_session( int is_last; spin_lock_bh(&sess->conn_lock); - if (session_sleep) - atomic_set(&sess->sleep_on_sess_wait_comp, 1); if (connection_sleep) { list_for_each_entry_safe(conn, conn_tmp, &sess->sess_conn_list, @@ -4679,12 +4640,15 @@ int iscsit_release_sessions_for_tpg(struct iscsi_portal_group *tpg, int force) spin_lock(&sess->conn_lock); if (atomic_read(&sess->session_fall_back_to_erl0) || atomic_read(&sess->session_logout) || + atomic_read(&sess->session_close) || (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) { spin_unlock(&sess->conn_lock); continue; } + iscsit_inc_session_usage_count(sess); atomic_set(&sess->session_reinstatement, 1); atomic_set(&sess->session_fall_back_to_erl0, 1); + atomic_set(&sess->session_close, 1); spin_unlock(&sess->conn_lock); list_move_tail(&se_sess->sess_list, &free_list); @@ -4694,7 +4658,9 @@ int iscsit_release_sessions_for_tpg(struct iscsi_portal_group *tpg, int force) list_for_each_entry_safe(se_sess, se_sess_tmp, &free_list, sess_list) { sess = (struct iscsi_session *)se_sess->fabric_sess_ptr; - iscsit_free_session(sess); + list_del_init(&se_sess->sess_list); + iscsit_stop_session(sess, 1, 1); + iscsit_dec_session_usage_count(sess); session_count++; } diff --git a/drivers/target/iscsi/iscsi_target.h b/drivers/target/iscsi/iscsi_target.h index c95f56a3ce31..7409ce2a6607 100644 --- a/drivers/target/iscsi/iscsi_target.h +++ b/drivers/target/iscsi/iscsi_target.h @@ -43,7 +43,6 @@ extern int iscsi_target_rx_thread(void *); extern int iscsit_close_connection(struct iscsi_conn *); extern int iscsit_close_session(struct iscsi_session *); extern void iscsit_fail_session(struct iscsi_session *); -extern int iscsit_free_session(struct iscsi_session *); extern void iscsit_stop_session(struct iscsi_session *, int, int); extern int iscsit_release_sessions_for_tpg(struct iscsi_portal_group *, int); diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c index 42b369fc415e..0fa1d57b26fa 100644 --- a/drivers/target/iscsi/iscsi_target_configfs.c +++ b/drivers/target/iscsi/iscsi_target_configfs.c @@ -1476,20 +1476,23 @@ static void lio_tpg_close_session(struct se_session *se_sess) spin_lock(&sess->conn_lock); if (atomic_read(&sess->session_fall_back_to_erl0) || atomic_read(&sess->session_logout) || + atomic_read(&sess->session_close) || (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) { spin_unlock(&sess->conn_lock); spin_unlock_bh(&se_tpg->session_lock); return; } + iscsit_inc_session_usage_count(sess); atomic_set(&sess->session_reinstatement, 1); atomic_set(&sess->session_fall_back_to_erl0, 1); + atomic_set(&sess->session_close, 1); spin_unlock(&sess->conn_lock); iscsit_stop_time2retain_timer(sess); spin_unlock_bh(&se_tpg->session_lock); iscsit_stop_session(sess, 1, 1); - iscsit_close_session(sess); + iscsit_dec_session_usage_count(sess); } static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg) diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c index f53330813207..731ee67fe914 100644 --- a/drivers/target/iscsi/iscsi_target_login.c +++ b/drivers/target/iscsi/iscsi_target_login.c @@ -156,6 +156,7 @@ int iscsi_check_for_session_reinstatement(struct iscsi_conn *conn) spin_lock(&sess_p->conn_lock); if (atomic_read(&sess_p->session_fall_back_to_erl0) || atomic_read(&sess_p->session_logout) || + atomic_read(&sess_p->session_close) || (sess_p->time2retain_timer_flags & ISCSI_TF_EXPIRED)) { spin_unlock(&sess_p->conn_lock); continue; @@ -166,6 +167,7 @@ int iscsi_check_for_session_reinstatement(struct iscsi_conn *conn) (sess_p->sess_ops->SessionType == sessiontype))) { atomic_set(&sess_p->session_reinstatement, 1); atomic_set(&sess_p->session_fall_back_to_erl0, 1); + atomic_set(&sess_p->session_close, 1); spin_unlock(&sess_p->conn_lock); iscsit_inc_session_usage_count(sess_p); iscsit_stop_time2retain_timer(sess_p); @@ -190,7 +192,6 @@ int iscsi_check_for_session_reinstatement(struct iscsi_conn *conn) if (sess->session_state == TARG_SESS_STATE_FAILED) { spin_unlock_bh(&sess->conn_lock); iscsit_dec_session_usage_count(sess); - iscsit_close_session(sess); return 0; } spin_unlock_bh(&sess->conn_lock); @@ -198,7 +199,6 @@ int iscsi_check_for_session_reinstatement(struct iscsi_conn *conn) iscsit_stop_session(sess, 1, 1); iscsit_dec_session_usage_count(sess); - iscsit_close_session(sess); return 0; } @@ -486,6 +486,7 @@ static int iscsi_login_non_zero_tsih_s2( sess_p = (struct iscsi_session *)se_sess->fabric_sess_ptr; if (atomic_read(&sess_p->session_fall_back_to_erl0) || atomic_read(&sess_p->session_logout) || + atomic_read(&sess_p->session_close) || (sess_p->time2retain_timer_flags & ISCSI_TF_EXPIRED)) continue; if (!memcmp(sess_p->isid, pdu->isid, 6) && diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index e6e175597860..ff82b21fdcce 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -684,7 +684,9 @@ static ssize_t emulate_ua_intlck_ctrl_store(struct config_item *item, if (ret < 0) return ret; - if (val != 0 && val != 1 && val != 2) { + if (val != TARGET_UA_INTLCK_CTRL_CLEAR + && val != TARGET_UA_INTLCK_CTRL_NO_CLEAR + && val != TARGET_UA_INTLCK_CTRL_ESTABLISH_UA) { pr_err("Illegal value %d\n", val); return -EINVAL; } diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index 2d19f0e332b0..4cee1138284b 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -767,7 +767,7 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name) dev->dev_attrib.emulate_fua_write = 1; dev->dev_attrib.emulate_fua_read = 1; dev->dev_attrib.emulate_write_cache = DA_EMULATE_WRITE_CACHE; - dev->dev_attrib.emulate_ua_intlck_ctrl = DA_EMULATE_UA_INTLLCK_CTRL; + dev->dev_attrib.emulate_ua_intlck_ctrl = TARGET_UA_INTLCK_CTRL_CLEAR; dev->dev_attrib.emulate_tas = DA_EMULATE_TAS; dev->dev_attrib.emulate_tpu = DA_EMULATE_TPU; dev->dev_attrib.emulate_tpws = DA_EMULATE_TPWS; @@ -829,7 +829,7 @@ bool target_configure_unmap_from_queue(struct se_dev_attrib *attrib, attrib->unmap_granularity = q->limits.discard_granularity / block_size; attrib->unmap_granularity_alignment = q->limits.discard_alignment / block_size; - attrib->unmap_zeroes_data = (q->limits.max_write_zeroes_sectors); + attrib->unmap_zeroes_data = !!(q->limits.max_write_zeroes_sectors); return true; } EXPORT_SYMBOL(target_configure_unmap_from_queue); diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c index 6d4cf2643c0a..ca5579ebc81d 100644 --- a/drivers/target/target_core_spc.c +++ b/drivers/target/target_core_spc.c @@ -847,8 +847,17 @@ static int spc_modesense_control(struct se_cmd *cmd, u8 pc, u8 *p) * for a BUSY, TASK SET FULL, or RESERVATION CONFLICT status regardless * to the number of commands completed with one of those status codes. */ - p[4] = (dev->dev_attrib.emulate_ua_intlck_ctrl == 2) ? 0x30 : - (dev->dev_attrib.emulate_ua_intlck_ctrl == 1) ? 0x20 : 0x00; + switch (dev->dev_attrib.emulate_ua_intlck_ctrl) { + case TARGET_UA_INTLCK_CTRL_ESTABLISH_UA: + p[4] = 0x30; + break; + case TARGET_UA_INTLCK_CTRL_NO_CLEAR: + p[4] = 0x20; + break; + default: /* TARGET_UA_INTLCK_CTRL_CLEAR */ + p[4] = 0x00; + break; + } /* * From spc4r17, section 7.4.6 Control mode Page * diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c index feeba3966617..afbd492c76a9 100644 --- a/drivers/target/target_core_tmr.c +++ b/drivers/target/target_core_tmr.c @@ -78,7 +78,7 @@ static int target_check_cdb_and_preempt(struct list_head *list, } static bool __target_check_io_state(struct se_cmd *se_cmd, - struct se_session *tmr_sess, int tas) + struct se_session *tmr_sess, bool tas) { struct se_session *sess = se_cmd->se_sess; @@ -251,7 +251,7 @@ static void core_tmr_drain_state_list( struct se_device *dev, struct se_cmd *prout_cmd, struct se_session *tmr_sess, - int tas, + bool tas, struct list_head *preempt_and_abort_list) { LIST_HEAD(drain_task_list); @@ -334,7 +334,7 @@ int core_tmr_lun_reset( struct se_node_acl *tmr_nacl = NULL; struct se_portal_group *tmr_tpg = NULL; struct se_session *tmr_sess = NULL; - int tas; + bool tas; /* * TASK_ABORTED status bit, this is configurable via ConfigFS * struct se_device attributes. spc4r17 section 7.4.6 Control mode page diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 0ae9e60fc4d5..594b724bbf79 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -1898,7 +1898,8 @@ void transport_generic_request_failure(struct se_cmd *cmd, * See spc4r17, section 7.4.6 Control Mode Page, Table 349 */ if (cmd->se_sess && - cmd->se_dev->dev_attrib.emulate_ua_intlck_ctrl == 2) { + cmd->se_dev->dev_attrib.emulate_ua_intlck_ctrl + == TARGET_UA_INTLCK_CTRL_ESTABLISH_UA) { target_ua_allocate_lun(cmd->se_sess->se_node_acl, cmd->orig_fe_lun, 0x2C, ASCQ_2CH_PREVIOUS_RESERVATION_CONFLICT_STATUS); diff --git a/drivers/target/target_core_ua.c b/drivers/target/target_core_ua.c index 151b56002da5..4276690fb6cb 100644 --- a/drivers/target/target_core_ua.c +++ b/drivers/target/target_core_ua.c @@ -199,6 +199,8 @@ bool core_scsi3_ua_for_check_condition(struct se_cmd *cmd, u8 *key, u8 *asc, struct se_node_acl *nacl; struct se_ua *ua = NULL, *ua_p; int head = 1; + bool dev_ua_intlck_clear = (dev->dev_attrib.emulate_ua_intlck_ctrl + == TARGET_UA_INTLCK_CTRL_CLEAR); if (WARN_ON_ONCE(!sess)) return false; @@ -229,7 +231,7 @@ bool core_scsi3_ua_for_check_condition(struct se_cmd *cmd, u8 *key, u8 *asc, * highest priority UNIT_ATTENTION and ASC/ASCQ without * clearing it. */ - if (dev->dev_attrib.emulate_ua_intlck_ctrl != 0) { + if (!dev_ua_intlck_clear) { *asc = ua->ua_asc; *ascq = ua->ua_ascq; break; @@ -254,8 +256,8 @@ bool core_scsi3_ua_for_check_condition(struct se_cmd *cmd, u8 *key, u8 *asc, " INTLCK_CTRL: %d, mapped LUN: %llu, got CDB: 0x%02x" " reported ASC: 0x%02x, ASCQ: 0x%02x\n", nacl->se_tpg->se_tpg_tfo->fabric_name, - (dev->dev_attrib.emulate_ua_intlck_ctrl != 0) ? "Reporting" : - "Releasing", dev->dev_attrib.emulate_ua_intlck_ctrl, + dev_ua_intlck_clear ? "Releasing" : "Reporting", + dev->dev_attrib.emulate_ua_intlck_ctrl, cmd->orig_fe_lun, cmd->t_task_cdb[0], *asc, *ascq); return head == 0; |