[01/16] target/core: Remove the write_pending_status() callback function

Message ID	20190125183458.220477-2-bvanassche@acm.org (mailing list archive)
State	Accepted
Headers	show Return-Path: <target-devel-owner@kernel.org> From: Bart Van Assche <bvanassche@acm.org> To: "Martin K . Petersen" <martin.petersen@oracle.com> Cc: Christoph Hellwig <hch@lst.de>, target-devel@vger.kernel.org, Bart Van Assche <bvanassche@acm.org>, Felipe Balbi <balbi@ti.com>, Sagi Grimberg <sagig@mellanox.com>, Andy Grover <agrover@redhat.com>, Hannes Reinecke <hare@suse.com>, "Bryant G . Ly" <bryantly@linux.vnet.ibm.com>, Nicholas Bellinger <nab@linux-iscsi.org>, Mike Christie <mchristi@redhat.com>, Himanshu Madhani <himanshu.madhani@qlogic.com>, Quinn Tran <quinn.tran@qlogic.com>, Saurav Kashyap <saurav.kashyap@qlogic.com>, "Michael S . Tsirkin" <mst@redhat.com>, Juergen Gross <jgross@suse.com> Subject: [PATCH 01/16] target/core: Remove the write_pending_status() callback function Date: Fri, 25 Jan 2019 10:34:43 -0800 Message-Id: <20190125183458.220477-2-bvanassche@acm.org> In-Reply-To: <20190125183458.220477-1-bvanassche@acm.org> References: <20190125183458.220477-1-bvanassche@acm.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: target-devel-owner@vger.kernel.org Precedence: bulk
Series	SCSI target patches for kernel v5.1 \| expand [00/16] SCSI target patches for kernel v5.1 [01/16] target/core: Remove the write_pending_status() callback function [02/16] target/core: Remove several state tests from the TMF code [03/16] target/core: Simplify the LUN RESET implementation [04/16] target/core: Inline transport_lun_remove_cmd() [05/16] target/core: Add target_send_busy() [06/16] RDMA/srpt: Fix handling of command / TMF submission failure [07/16] RDMA/srpt: Fix handling of TMF submission failure [08/16] RDMA/srpt: Rework I/O context allocation [09/16] RDMA/srpt: Fix a credit leak for aborted commands [10/16] target/iscsi: Remove an incorrect comment [11/16] target/iscsi: Convert comments about locking into runtime checks [12/16] target/iscsi: Fix spelling of "unsolicited" [13/16] target/iscsi: Rename a function and a function pointer [14/16] target/iscsi: Avoid that iscsit_release_commands_from_conn() triggers a deadlock [15/16] target/iscsi: Simplify iscsit_dump_data_payload() [16/16] target/iscsi: Simplify iscsit_handle_text_cmd()

diff --git a/Documentation/target/tcm_mod_builder.py b/Documentation/target/tcm_mod_builder.py index 94bf6944bb1e..95d6e31f1e3a 100755 --- a/Documentation/target/tcm_mod_builder.py +++ b/Documentation/target/tcm_mod_builder.py @@ -297,7 +297,6 @@ def tcm_mod_build_configfs(proto_ident, fabric_mod_dir_var, fabric_mod_name): buf += " .sess_get_index = " + fabric_mod_name + "_sess_get_index,\n" buf += " .sess_get_initiator_sid = NULL,\n" buf += " .write_pending = " + fabric_mod_name + "_write_pending,\n" - buf += " .write_pending_status = " + fabric_mod_name + "_write_pending_status,\n" buf += " .set_default_node_attributes = " + fabric_mod_name + "_set_default_node_attrs,\n" buf += " .get_cmd_state = " + fabric_mod_name + "_get_cmd_state,\n" buf += " .queue_data_in = " + fabric_mod_name + "_queue_data_in,\n" @@ -479,13 +478,6 @@ def tcm_mod_dump_fabric_ops(proto_ident, fabric_mod_dir_var, fabric_mod_name): buf += "}\n\n" bufi += "int " + fabric_mod_name + "_write_pending(struct se_cmd *);\n" - if re.search('write_pending_status\)\(', fo): - buf += "int " + fabric_mod_name + "_write_pending_status(struct se_cmd *se_cmd)\n" - buf += "{\n" - buf += " return 0;\n" - buf += "}\n\n" - bufi += "int " + fabric_mod_name + "_write_pending_status(struct se_cmd *);\n" - if re.search('set_default_node_attributes\)\(', fo): buf += "void " + fabric_mod_name + "_set_default_node_attrs(struct se_node_acl *nacl)\n" buf += "{\n" diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c index e9c336cff8f5..8cee8c6c6be9 100644 --- a/drivers/infiniband/ulp/srpt/ib_srpt.c +++ b/drivers/infiniband/ulp/srpt/ib_srpt.c @@ -2703,14 +2703,6 @@ static int srpt_rdma_cm_handler(struct rdma_cm_id *cm_id, return ret; } -static int srpt_write_pending_status(struct se_cmd *se_cmd) -{ - struct srpt_send_ioctx *ioctx; - - ioctx = container_of(se_cmd, struct srpt_send_ioctx, cmd); - return ioctx->state == SRPT_STATE_NEED_DATA; -} - /* * srpt_write_pending - Start data transfer from initiator to target (write). */ @@ -3806,7 +3798,6 @@ static const struct target_core_fabric_ops srpt_template = { .sess_get_index = srpt_sess_get_index, .sess_get_initiator_sid = NULL, .write_pending = srpt_write_pending, - .write_pending_status = srpt_write_pending_status, .set_default_node_attributes = srpt_set_default_node_attrs, .get_cmd_state = srpt_get_tcm_cmd_state, .queue_data_in = srpt_queue_data_in, diff --git a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c index cc9cae469c4b..7ca277e28d63 100644 --- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c +++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c @@ -3788,11 +3788,6 @@ static int ibmvscsis_write_pending(struct se_cmd *se_cmd) return 0; } -static int ibmvscsis_write_pending_status(struct se_cmd *se_cmd) -{ - return 0; -} - static void ibmvscsis_set_default_node_attrs(struct se_node_acl *nacl) { } @@ -4053,7 +4048,6 @@ static const struct target_core_fabric_ops ibmvscsis_ops = { .release_cmd = ibmvscsis_release_cmd, .sess_get_index = ibmvscsis_sess_get_index, .write_pending = ibmvscsis_write_pending, - .write_pending_status = ibmvscsis_write_pending_status, .set_default_node_attributes = ibmvscsis_set_default_node_attrs, .get_cmd_state = ibmvscsis_get_cmd_state, .queue_data_in = ibmvscsis_queue_data_in, diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c index 283e6b80abb5..8a3075d17c63 100644 --- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c +++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c @@ -420,26 +420,6 @@ static int tcm_qla2xxx_write_pending(struct se_cmd *se_cmd) return qlt_rdy_to_xfer(cmd); } -static int tcm_qla2xxx_write_pending_status(struct se_cmd *se_cmd) -{ - unsigned long flags; - /* - * Check for WRITE_PENDING status to determine if we need to wait for - * CTIO aborts to be posted via hardware in tcm_qla2xxx_handle_data(). - */ - spin_lock_irqsave(&se_cmd->t_state_lock, flags); - if (se_cmd->t_state == TRANSPORT_WRITE_PENDING || - se_cmd->t_state == TRANSPORT_COMPLETE_QF_WP) { - spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); - wait_for_completion_timeout(&se_cmd->t_transport_stop_comp, - 50); - return 0; - } - spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); - - return 0; -} - static void tcm_qla2xxx_set_default_node_attrs(struct se_node_acl *nacl) { return; @@ -537,15 +517,6 @@ static void tcm_qla2xxx_handle_data_work(struct work_struct *work) cmd->qpair->tgt_counters.qla_core_ret_ctio++; if (!cmd->write_data_transferred) { - /* - * Check if se_cmd has already been aborted via LUN_RESET, and - * waiting upon completion in tcm_qla2xxx_write_pending_status() - */ - if (cmd->se_cmd.transport_state & CMD_T_ABORTED) { - complete(&cmd->se_cmd.t_transport_stop_comp); - return; - } - switch (cmd->dif_err_code) { case DIF_ERR_GRD: cmd->se_cmd.pi_err = @@ -1902,7 +1873,6 @@ static const struct target_core_fabric_ops tcm_qla2xxx_ops = { .sess_get_index = tcm_qla2xxx_sess_get_index, .sess_get_initiator_sid = NULL, .write_pending = tcm_qla2xxx_write_pending, - .write_pending_status = tcm_qla2xxx_write_pending_status, .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs, .get_cmd_state = tcm_qla2xxx_get_cmd_state, .queue_data_in = tcm_qla2xxx_queue_data_in, @@ -1943,7 +1913,6 @@ static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = { .sess_get_index = tcm_qla2xxx_sess_get_index, .sess_get_initiator_sid = NULL, .write_pending = tcm_qla2xxx_write_pending, - .write_pending_status = tcm_qla2xxx_write_pending_status, .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs, .get_cmd_state = tcm_qla2xxx_get_cmd_state, .queue_data_in = tcm_qla2xxx_queue_data_in, diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c index a5481dfeae8d..cac94c94ef5d 100644 --- a/drivers/target/iscsi/iscsi_target_configfs.c +++ b/drivers/target/iscsi/iscsi_target_configfs.c @@ -1389,18 +1389,6 @@ static int lio_write_pending(struct se_cmd *se_cmd) return 0; } -static int lio_write_pending_status(struct se_cmd *se_cmd) -{ - struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); - int ret; - - spin_lock_bh(&cmd->istate_lock); - ret = !(cmd->cmd_flags & ICF_GOT_LAST_DATAOUT); - spin_unlock_bh(&cmd->istate_lock); - - return ret; -} - static int lio_queue_status(struct se_cmd *se_cmd) { struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); @@ -1564,7 +1552,6 @@ const struct target_core_fabric_ops iscsi_ops = { .sess_get_index = lio_sess_get_index, .sess_get_initiator_sid = lio_sess_get_initiator_sid, .write_pending = lio_write_pending, - .write_pending_status = lio_write_pending_status, .set_default_node_attributes = lio_set_default_node_attributes, .get_cmd_state = iscsi_get_cmd_state, .queue_data_in = lio_queue_data_in, diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index 7bd7c0c0db6f..89c6e3719d2b 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c @@ -560,11 +560,6 @@ static int tcm_loop_write_pending(struct se_cmd *se_cmd) return 0; } -static int tcm_loop_write_pending_status(struct se_cmd *se_cmd) -{ - return 0; -} - static int tcm_loop_queue_data_in(struct se_cmd *se_cmd) { struct tcm_loop_cmd *tl_cmd = container_of(se_cmd, @@ -1159,7 +1154,6 @@ static const struct target_core_fabric_ops loop_ops = { .release_cmd = tcm_loop_release_cmd, .sess_get_index = tcm_loop_sess_get_index, .write_pending = tcm_loop_write_pending, - .write_pending_status = tcm_loop_write_pending_status, .set_default_node_attributes = tcm_loop_set_default_node_attributes, .get_cmd_state = tcm_loop_get_cmd_state, .queue_data_in = tcm_loop_queue_data_in, diff --git a/drivers/target/sbp/sbp_target.c b/drivers/target/sbp/sbp_target.c index 08cee13dfb9a..b0d3583998f0 100644 --- a/drivers/target/sbp/sbp_target.c +++ b/drivers/target/sbp/sbp_target.c @@ -1749,11 +1749,6 @@ static int sbp_write_pending(struct se_cmd *se_cmd) return 0; } -static int sbp_write_pending_status(struct se_cmd *se_cmd) -{ - return 0; -} - static void sbp_set_default_node_attrs(struct se_node_acl *nacl) { return; @@ -2329,7 +2324,6 @@ static const struct target_core_fabric_ops sbp_ops = { .release_cmd = sbp_release_cmd, .sess_get_index = sbp_sess_get_index, .write_pending = sbp_write_pending, - .write_pending_status = sbp_write_pending_status, .set_default_node_attributes = sbp_set_default_node_attrs, .get_cmd_state = sbp_get_cmd_state, .queue_data_in = sbp_queue_data_in, diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index 72016d0dfca5..1124c84a3b7f 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -401,10 +401,6 @@ static int target_fabric_tf_ops_check(const struct target_core_fabric_ops *tfo) pr_err("Missing tfo->write_pending()\n"); return -EINVAL; } - if (!tfo->write_pending_status) { - pr_err("Missing tfo->write_pending_status()\n"); - return -EINVAL; - } if (!tfo->set_default_node_attributes) { pr_err("Missing tfo->set_default_node_attributes()\n"); return -EINVAL; diff --git a/drivers/target/target_core_xcopy.c b/drivers/target/target_core_xcopy.c index c2e1fc927fdf..9be1418e919f 100644 --- a/drivers/target/target_core_xcopy.c +++ b/drivers/target/target_core_xcopy.c @@ -442,11 +442,6 @@ static int xcopy_pt_write_pending(struct se_cmd *se_cmd) return 0; } -static int xcopy_pt_write_pending_status(struct se_cmd *se_cmd) -{ - return 0; -} - static int xcopy_pt_queue_data_in(struct se_cmd *se_cmd) { return 0; @@ -463,7 +458,6 @@ static const struct target_core_fabric_ops xcopy_pt_tfo = { .release_cmd = xcopy_pt_release_cmd, .check_stop_free = xcopy_pt_check_stop_free, .write_pending = xcopy_pt_write_pending, - .write_pending_status = xcopy_pt_write_pending_status, .queue_data_in = xcopy_pt_queue_data_in, .queue_status = xcopy_pt_queue_status, }; diff --git a/drivers/target/tcm_fc/tcm_fc.h b/drivers/target/tcm_fc/tcm_fc.h index 11d27b93b413..b8ced4458118 100644 --- a/drivers/target/tcm_fc/tcm_fc.h +++ b/drivers/target/tcm_fc/tcm_fc.h @@ -158,7 +158,6 @@ void ft_release_cmd(struct se_cmd *); int ft_queue_status(struct se_cmd *); int ft_queue_data_in(struct se_cmd *); int ft_write_pending(struct se_cmd *); -int ft_write_pending_status(struct se_cmd *); int ft_get_cmd_state(struct se_cmd *); void ft_queue_tm_resp(struct se_cmd *); void ft_aborted_task(struct se_cmd *); diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c index a183d4da7db2..f0529ba58f4c 100644 --- a/drivers/target/tcm_fc/tfc_cmd.c +++ b/drivers/target/tcm_fc/tfc_cmd.c @@ -184,13 +184,6 @@ int ft_queue_status(struct se_cmd *se_cmd) return 0; } -int ft_write_pending_status(struct se_cmd *se_cmd) -{ - struct ft_cmd *cmd = container_of(se_cmd, struct ft_cmd, se_cmd); - - return cmd->write_data_len != se_cmd->data_length; -} - /* * Send TX_RDY (transfer ready). */ diff --git a/drivers/target/tcm_fc/tfc_conf.c b/drivers/target/tcm_fc/tfc_conf.c index 1ce49518d440..c873a052fcb0 100644 --- a/drivers/target/tcm_fc/tfc_conf.c +++ b/drivers/target/tcm_fc/tfc_conf.c @@ -437,7 +437,6 @@ static const struct target_core_fabric_ops ft_fabric_ops = { .sess_get_index = ft_sess_get_index, .sess_get_initiator_sid = NULL, .write_pending = ft_write_pending, - .write_pending_status = ft_write_pending_status, .set_default_node_attributes = ft_set_default_node_attr, .get_cmd_state = ft_get_cmd_state, .queue_data_in = ft_queue_data_in, diff --git a/drivers/usb/gadget/function/f_tcm.c b/drivers/usb/gadget/function/f_tcm.c index 34f5982cab78..7f01f78b1d23 100644 --- a/drivers/usb/gadget/function/f_tcm.c +++ b/drivers/usb/gadget/function/f_tcm.c @@ -1292,14 +1292,6 @@ static u32 usbg_sess_get_index(struct se_session *se_sess) return 0; } -/* - * XXX Error recovery: return != 0 if we expect writes. Dunno when that could be - */ -static int usbg_write_pending_status(struct se_cmd *se_cmd) -{ - return 0; -} - static void usbg_set_default_node_attrs(struct se_node_acl *nacl) { } @@ -1725,7 +1717,6 @@ static const struct target_core_fabric_ops usbg_ops = { .sess_get_index = usbg_sess_get_index, .sess_get_initiator_sid = NULL, .write_pending = usbg_send_write_request, - .write_pending_status = usbg_write_pending_status, .set_default_node_attributes = usbg_set_default_node_attrs, .get_cmd_state = usbg_get_cmd_state, .queue_data_in = usbg_send_read_response, diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c index 8e10ab436d1f..ad7899f99b97 100644 --- a/drivers/vhost/scsi.c +++ b/drivers/vhost/scsi.c @@ -346,11 +346,6 @@ static int vhost_scsi_write_pending(struct se_cmd *se_cmd) return 0; } -static int vhost_scsi_write_pending_status(struct se_cmd *se_cmd) -{ - return 0; -} - static void vhost_scsi_set_default_node_attrs(struct se_node_acl *nacl) { return; @@ -2298,7 +2293,6 @@ static const struct target_core_fabric_ops vhost_scsi_ops = { .sess_get_index = vhost_scsi_sess_get_index, .sess_get_initiator_sid = NULL, .write_pending = vhost_scsi_write_pending, - .write_pending_status = vhost_scsi_write_pending_status, .set_default_node_attributes = vhost_scsi_set_default_node_attrs, .get_cmd_state = vhost_scsi_get_cmd_state, .queue_data_in = vhost_scsi_queue_data_in, diff --git a/drivers/xen/xen-scsiback.c b/drivers/xen/xen-scsiback.c index c9e23a126218..e59937293a32 100644 --- a/drivers/xen/xen-scsiback.c +++ b/drivers/xen/xen-scsiback.c @@ -1404,11 +1404,6 @@ static int scsiback_write_pending(struct se_cmd *se_cmd) return 0; } -static int scsiback_write_pending_status(struct se_cmd *se_cmd) -{ - return 0; -} - static void scsiback_set_default_node_attrs(struct se_node_acl *nacl) { } @@ -1818,7 +1813,6 @@ static const struct target_core_fabric_ops scsiback_ops = { .sess_get_index = scsiback_sess_get_index, .sess_get_initiator_sid = NULL, .write_pending = scsiback_write_pending, - .write_pending_status = scsiback_write_pending_status, .set_default_node_attributes = scsiback_set_default_node_attrs, .get_cmd_state = scsiback_get_cmd_state, .queue_data_in = scsiback_queue_data_in, diff --git a/include/target/target_core_fabric.h b/include/target/target_core_fabric.h index ee5ddd81cd8d..691c6b5e6520 100644 --- a/include/target/target_core_fabric.h +++ b/include/target/target_core_fabric.h @@ -74,7 +74,6 @@ struct target_core_fabric_ops { u32 (*sess_get_initiator_sid)(struct se_session *, unsigned char *, u32); int (*write_pending)(struct se_cmd *); - int (*write_pending_status)(struct se_cmd *); void (*set_default_node_attributes)(struct se_node_acl *); int (*get_cmd_state)(struct se_cmd *); int (*queue_data_in)(struct se_cmd *);

[01/16] target/core: Remove the write_pending_status() callback function

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Patch