target: merge release_cmd methods

The release_cmd_to_pool and release_cmd_direct methods are always the same.
Merge them into a single release_cmd method, and clean up the fallout.

(nab: fix breakage in transport_generic_free_cmd() parameter build breakage
 in drivers/target/tcm_fc/tfc_cmd.c)

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

5 files changed, 32 insertions, 56 deletions

diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index cb4a9b906a4b..c2937b2035d3 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -204,13 +204,10 @@ static void tcm_loop_check_stop_free(struct se_cmd *se_cmd)
          * Release the struct se_cmd, which will make a callback to release
          * struct tcm_loop_cmd * in tcm_loop_deallocate_core_cmd()
          */
-        transport_generic_free_cmd(se_cmd, 0, 1, 0);
+        transport_generic_free_cmd(se_cmd, 0, 0);
 }
 
-/*
- * Called from struct target_core_fabric_ops->release_cmd_to_pool()
- */
-static void tcm_loop_deallocate_core_cmd(struct se_cmd *se_cmd)
+static void tcm_loop_release_cmd(struct se_cmd *se_cmd)
 {
         struct tcm_loop_cmd *tl_cmd = container_of(se_cmd,
                                 struct tcm_loop_cmd, tl_se_cmd);
@@ -395,7 +392,7 @@ static int tcm_loop_device_reset(struct scsi_cmnd *sc)
                 SUCCESS : FAILED;
 release:
         if (se_cmd)
-                transport_generic_free_cmd(se_cmd, 1, 1, 0);
+                transport_generic_free_cmd(se_cmd, 1, 0);
         else
                 kmem_cache_free(tcm_loop_cmd_cache, tl_cmd);
         kfree(tl_tmr);
@@ -1418,8 +1415,7 @@ static int tcm_loop_register_configfs(void)
          */
         fabric->tf_ops.new_cmd_map = &tcm_loop_new_cmd_map;
         fabric->tf_ops.check_stop_free = &tcm_loop_check_stop_free;
-        fabric->tf_ops.release_cmd_to_pool = &tcm_loop_deallocate_core_cmd;
-        fabric->tf_ops.release_cmd_direct = &tcm_loop_deallocate_core_cmd;
+        fabric->tf_ops.release_cmd = &tcm_loop_release_cmd;
         fabric->tf_ops.shutdown_session = &tcm_loop_shutdown_session;
         fabric->tf_ops.close_session = &tcm_loop_close_session;
         fabric->tf_ops.stop_session = &tcm_loop_stop_session;
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index aac0ee993b90..63cba1e243ef 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -427,12 +427,8 @@ static int target_fabric_tf_ops_check(
                 printk(KERN_ERR "Missing tfo->tpg_get_inst_index()\n");
                 return -EINVAL;
         }
-        if (!(tfo->release_cmd_to_pool)) {
-                printk(KERN_ERR "Missing tfo->release_cmd_to_pool()\n");
-                return -EINVAL;
-        }
-        if (!(tfo->release_cmd_direct)) {
-                printk(KERN_ERR "Missing tfo->release_cmd_direct()\n");
+        if (!tfo->release_cmd) {
+                printk(KERN_ERR "Missing tfo->release_cmd()\n");
                 return -EINVAL;
         }
         if (!(tfo->shutdown_session)) {
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 43fd2778d602..d42a98e4725b 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -212,7 +212,7 @@ static u32 transport_allocate_tasks(struct se_cmd *cmd,
                 struct list_head *mem_list, int set_counts);
 static int transport_generic_get_mem(struct se_cmd *cmd, u32 length);
 static int transport_generic_remove(struct se_cmd *cmd,
-                int release_to_pool, int session_reinstatement);
+                int session_reinstatement);
 static int transport_cmd_get_valid_sectors(struct se_cmd *cmd);
 static int transport_map_sg_to_mem(struct se_cmd *cmd,
                 struct list_head *se_mem_list, struct scatterlist *sgl);
@@ -737,7 +737,7 @@ void transport_cmd_finish_abort(struct se_cmd *cmd, int remove)
         if (transport_cmd_check_stop_to_fabric(cmd))
                 return;
         if (remove)
-                transport_generic_remove(cmd, 0, 0);
+                transport_generic_remove(cmd, 0);
 }
 
 void transport_cmd_finish_abort_tmr(struct se_cmd *cmd)
@@ -747,7 +747,7 @@ void transport_cmd_finish_abort_tmr(struct se_cmd *cmd)
         if (transport_cmd_check_stop_to_fabric(cmd))
                 return;
 
-        transport_generic_remove(cmd, 0, 0);
+        transport_generic_remove(cmd, 0);
 }
 
 static void transport_add_cmd_to_queue(
@@ -2146,7 +2146,7 @@ static void transport_generic_request_timeout(struct se_cmd *cmd)
         }
         spin_unlock_irqrestore(&cmd->t_state_lock, flags);
 
-        transport_generic_remove(cmd, 0, 0);
+        transport_generic_remove(cmd, 0);
 }
 
 static int
@@ -3825,13 +3825,11 @@ static void transport_release_fe_cmd(struct se_cmd *cmd)
 free_pages:
         transport_free_pages(cmd);
         transport_free_se_cmd(cmd);
-        cmd->se_tfo->release_cmd_direct(cmd);
+        cmd->se_tfo->release_cmd(cmd);
 }
 
-static int transport_generic_remove(
-        struct se_cmd *cmd,
-        int release_to_pool,
-        int session_reinstatement)
+static int
+transport_generic_remove(struct se_cmd *cmd, int session_reinstatement)
 {
         unsigned long flags;
 
@@ -3858,14 +3856,7 @@ static int transport_generic_remove(
 
 free_pages:
         transport_free_pages(cmd);
-
-        if (release_to_pool) {
-                transport_release_cmd_to_pool(cmd);
-        } else {
-                transport_free_se_cmd(cmd);
-                cmd->se_tfo->release_cmd_direct(cmd);
-        }
-
+        transport_release_cmd(cmd);
         return 0;
 }
 
@@ -4894,18 +4885,14 @@ static int transport_generic_write_pending(struct se_cmd *cmd)
         return PYX_TRANSPORT_WRITE_PENDING;
 }
 
-/*      transport_release_cmd_to_pool():
- *
- *
- */
-void transport_release_cmd_to_pool(struct se_cmd *cmd)
+void transport_release_cmd(struct se_cmd *cmd)
 {
         BUG_ON(!cmd->se_tfo);
 
         transport_free_se_cmd(cmd);
-        cmd->se_tfo->release_cmd_to_pool(cmd);
+        cmd->se_tfo->release_cmd(cmd);
 }
-EXPORT_SYMBOL(transport_release_cmd_to_pool);
+EXPORT_SYMBOL(transport_release_cmd);
 
 /*      transport_generic_free_cmd():
  *
@@ -4914,11 +4901,10 @@ EXPORT_SYMBOL(transport_release_cmd_to_pool);
 void transport_generic_free_cmd(
         struct se_cmd *cmd,
         int wait_for_tasks,
-        int release_to_pool,
         int session_reinstatement)
 {
         if (!(cmd->se_cmd_flags & SCF_SE_LUN_CMD))
-                transport_release_cmd_to_pool(cmd);
+                transport_release_cmd(cmd);
         else {
                 core_dec_lacl_count(cmd->se_sess->se_node_acl, cmd);
 
@@ -4936,8 +4922,7 @@ void transport_generic_free_cmd(
 
                 transport_free_dev_tasks(cmd);
 
-                transport_generic_remove(cmd, release_to_pool,
-                                session_reinstatement);
+                transport_generic_remove(cmd, session_reinstatement);
         }
 }
 EXPORT_SYMBOL(transport_generic_free_cmd);
@@ -5210,7 +5195,7 @@ remove:
         if (!remove_cmd)
                 return;
 
-        transport_generic_free_cmd(cmd, 0, 0, session_reinstatement);
+        transport_generic_free_cmd(cmd, 0, session_reinstatement);
 }
 
 static int transport_get_sense_codes(
@@ -5616,7 +5601,7 @@ static void transport_processing_shutdown(struct se_device *dev)
                                 transport_lun_remove_cmd(cmd);
 
                                 if (transport_cmd_check_stop(cmd, 1, 0))
-                                        transport_generic_remove(cmd, 0, 0);
+                                        transport_generic_remove(cmd, 0);
                         }
 
                         spin_lock_irqsave(&dev->execute_task_lock, flags);
@@ -5644,7 +5629,7 @@ static void transport_processing_shutdown(struct se_device *dev)
                         transport_lun_remove_cmd(cmd);
 
                         if (transport_cmd_check_stop(cmd, 1, 0))
-                                transport_generic_remove(cmd, 0, 0);
+                                transport_generic_remove(cmd, 0);
                 }
 
                 spin_lock_irqsave(&dev->execute_task_lock, flags);
@@ -5667,7 +5652,7 @@ static void transport_processing_shutdown(struct se_device *dev)
                 } else {
                         transport_lun_remove_cmd(cmd);
                         if (transport_cmd_check_stop(cmd, 1, 0))
-                                transport_generic_remove(cmd, 0, 0);
+                                transport_generic_remove(cmd, 0);
                 }
         }
 }
@@ -5739,10 +5724,10 @@ get_cmd:
                         transport_generic_complete_ok(cmd);
                         break;
                 case TRANSPORT_REMOVE:
-                        transport_generic_remove(cmd, 1, 0);
+                        transport_generic_remove(cmd, 0);
                         break;
                 case TRANSPORT_FREE_CMD_INTR:
-                        transport_generic_free_cmd(cmd, 0, 1, 0);
+                        transport_generic_free_cmd(cmd, 0, 0);
                         break;
                 case TRANSPORT_PROCESS_TMR:
                         transport_generic_do_tmr(cmd);
diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c
index 9a3b486e1aad..74d5bb766201 100644
--- a/drivers/target/tcm_fc/tfc_cmd.c
+++ b/drivers/target/tcm_fc/tfc_cmd.c
@@ -147,7 +147,7 @@ void ft_release_cmd(struct se_cmd *se_cmd)
 
 void ft_check_stop_free(struct se_cmd *se_cmd)
 {
-        transport_generic_free_cmd(se_cmd, 0, 1, 0);
+        transport_generic_free_cmd(se_cmd, 0, 0);
 }
 
 /*
@@ -304,7 +304,7 @@ static void ft_recv_seq(struct fc_seq *sp, struct fc_frame *fp, void *arg)
                 /* XXX need to find cmd if queued */
                 cmd->se_cmd.t_state = TRANSPORT_REMOVE;
                 cmd->seq = NULL;
-                transport_generic_free_cmd(&cmd->se_cmd, 0, 1, 0);
+                transport_generic_free_cmd(&cmd->se_cmd, 0, 0);
                 return;
         }
 
@@ -321,7 +321,7 @@ static void ft_recv_seq(struct fc_seq *sp, struct fc_frame *fp, void *arg)
                 printk(KERN_INFO "%s: unhandled frame r_ctl %x\n",
                        __func__, fh->fh_r_ctl);
                 fc_frame_free(fp);
-                transport_generic_free_cmd(&cmd->se_cmd, 0, 1, 0);
+                transport_generic_free_cmd(&cmd->se_cmd, 0, 0);
                 break;
         }
 }
@@ -443,7 +443,7 @@ static void ft_send_tm(struct ft_cmd *cmd)
                         sess = cmd->sess;
                         transport_send_check_condition_and_sense(&cmd->se_cmd,
                                 cmd->se_cmd.scsi_sense_reason, 0);
-                        transport_generic_free_cmd(&cmd->se_cmd, 0, 1, 0);
+                        transport_generic_free_cmd(&cmd->se_cmd, 0, 0);
                         ft_sess_put(sess);
                         return;
                 }
@@ -645,7 +645,7 @@ static void ft_send_cmd(struct ft_cmd *cmd)
         if (ret == -ENOMEM) {
                 transport_send_check_condition_and_sense(se_cmd,
                                 TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE, 0);
-                transport_generic_free_cmd(se_cmd, 0, 1, 0);
+                transport_generic_free_cmd(se_cmd, 0, 0);
                 return;
         }
         if (ret == -EINVAL) {
@@ -654,7 +654,7 @@ static void ft_send_cmd(struct ft_cmd *cmd)
                 else
                         transport_send_check_condition_and_sense(se_cmd,
                                         se_cmd->scsi_sense_reason, 0);
-                transport_generic_free_cmd(se_cmd, 0, 1, 0);
+                transport_generic_free_cmd(se_cmd, 0, 0);
                 return;
         }
         transport_generic_handle_cdb(se_cmd);
diff --git a/drivers/target/tcm_fc/tfc_conf.c b/drivers/target/tcm_fc/tfc_conf.c
index 20097728e8a0..1cb3d345183f 100644
--- a/drivers/target/tcm_fc/tfc_conf.c
+++ b/drivers/target/tcm_fc/tfc_conf.c
@@ -536,8 +536,7 @@ static struct target_core_fabric_ops ft_fabric_ops = {
         .tpg_release_fabric_acl =       ft_tpg_release_fabric_acl,
         .tpg_get_inst_index =           ft_tpg_get_inst_index,
         .check_stop_free =              ft_check_stop_free,
-        .release_cmd_to_pool =          ft_release_cmd,
-        .release_cmd_direct =           ft_release_cmd,
+        .release_cmd =                  ft_release_cmd,
         .shutdown_session =             ft_sess_shutdown,
         .close_session =                ft_sess_close,
         .stop_session =                 ft_sess_stop,