diff options
Diffstat (limited to 'drivers/target/target_core_transport.c')
| -rw-r--r-- | drivers/target/target_core_transport.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 7f06a62f8661..ea482d4b1f00 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -584,6 +584,15 @@ void transport_free_session(struct se_session *se_sess) } EXPORT_SYMBOL(transport_free_session); +static int target_release_res(struct se_device *dev, void *data) +{ + struct se_session *sess = data; + + if (dev->reservation_holder == sess) + target_release_reservation(dev); + return 0; +} + void transport_deregister_session(struct se_session *se_sess) { struct se_portal_group *se_tpg = se_sess->se_tpg; @@ -600,6 +609,12 @@ void transport_deregister_session(struct se_session *se_sess) se_sess->fabric_sess_ptr = NULL; spin_unlock_irqrestore(&se_tpg->session_lock, flags); + /* + * Since the session is being removed, release SPC-2 + * reservations held by the session that is disappearing. + */ + target_for_each_device(target_release_res, se_sess); + pr_debug("TARGET_CORE[%s]: Deregistered fabric_sess\n", se_tpg->se_tpg_tfo->fabric_name); /* @@ -1243,6 +1258,19 @@ target_check_max_data_sg_nents(struct se_cmd *cmd, struct se_device *dev, return TCM_NO_SENSE; } +/** + * target_cmd_size_check - Check whether there will be a residual. + * @cmd: SCSI command. + * @size: Data buffer size derived from CDB. The data buffer size provided by + * the SCSI transport driver is available in @cmd->data_length. + * + * Compare the data buffer size from the CDB with the data buffer limit from the transport + * header. Set @cmd->residual_count and SCF_OVERFLOW_BIT or SCF_UNDERFLOW_BIT if necessary. + * + * Note: target drivers set @cmd->data_length by calling transport_init_se_cmd(). + * + * Return: TCM_NO_SENSE + */ sense_reason_t target_cmd_size_check(struct se_cmd *cmd, unsigned int size) { |