target: push session reinstatement out of transport_generic_free_cmd

Push session reinstatement out of transport_generic_free_cmd into the only
caller that actually needs it.  Clean up transport_generic_free_cmd a bit,
and remove the useless comment.  I'd love to add a more useful kerneldoc
comment for it, but as this point I'm still a bit confused in where it
stands in the command release stack.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index aa2d6799..f0e701d 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -200,7 +200,7 @@
 	 * 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, 0);
+	transport_generic_free_cmd(se_cmd, 0);
 }
 
 static void tcm_loop_release_cmd(struct se_cmd *se_cmd)
@@ -388,7 +388,7 @@
 		SUCCESS : FAILED;
 release:
 	if (se_cmd)
-		transport_generic_free_cmd(se_cmd, 1, 0);
+		transport_generic_free_cmd(se_cmd, 1);
 	else
 		kmem_cache_free(tcm_loop_cmd_cache, tl_cmd);
 	kfree(tl_tmr);