target: replace ->execute_task with ->execute_cmd

Make CDB emulation work on commands instead of tasks again as a preparation
of removing tasks completely.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h
index 55da17b..2f54649 100644
--- a/include/target/target_core_backend.h
+++ b/include/target/target_core_backend.h
@@ -27,7 +27,7 @@
 	struct se_task *(*alloc_task)(unsigned char *cdb);
 	int (*do_task)(struct se_task *);
 	int (*do_discard)(struct se_device *, sector_t, u32);
-	void (*do_sync_cache)(struct se_task *);
+	void (*do_sync_cache)(struct se_cmd *);
 	void (*free_task)(struct se_task *);
 	ssize_t (*check_configfs_dev_params)(struct se_hba *,
 			struct se_subsystem_dev *);
@@ -50,6 +50,7 @@
 
 void	transport_complete_sync_cache(struct se_cmd *, int);
 void	transport_complete_task(struct se_task *, int);
+void	target_complete_cmd(struct se_cmd *, u8);
 
 void	transport_set_vpd_proto_id(struct t10_vpd *, unsigned char *);
 int	transport_set_vpd_assoc(struct t10_vpd *, unsigned char *);