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From 635e35723782c5973941d1f2bb0d3065b49eac4c Mon Sep 17 00:00:00 2001
From: David Disseldorp <ddiss@suse.de>
Date: Mon, 31 Aug 2015 13:48:06 +0200
Subject: [PATCH] target/rbd: add stubbed out pr_register_and_move
Patch-mainline: Not yet, SES2 clustered LIO/RBD
References: fate#318836

Add a tcm_rbd_pr_ops handler for PR REGISTER AND MOVE requests. This
operation is currently unsupported by the RBD backend.

Signed-off-by: David Disseldorp <ddiss@suse.de>
---
 drivers/target/target_core_rbd.c |    9 +++++++++
 1 file changed, 9 insertions(+)

--- a/drivers/target/target_core_rbd.c
+++ b/drivers/target/target_core_rbd.c
@@ -2392,6 +2392,14 @@ err_info_free:
 	return ret;
 }
 
+static sense_reason_t
+tcm_rbd_execute_pr_register_and_move(struct se_cmd *cmd, u64 old_key,
+				     u64 new_key, bool aptpl, int unreg)
+{
+	pr_err("REGISTER AND MOVE not supported by RBD backend\n");
+	return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+}
+
 static struct target_pr_ops tcm_rbd_pr_ops = {
 	.pr_read_keys		= tcm_rbd_execute_pr_read_keys,
 	.pr_read_reservation	= tcm_rbd_execute_pr_read_reservation,
@@ -2401,6 +2409,7 @@ static struct target_pr_ops tcm_rbd_pr_o
 	.pr_release		= tcm_rbd_execute_pr_release,
 	.pr_clear		= tcm_rbd_execute_pr_clear,
 	.pr_preempt		= tcm_rbd_execute_pr_preempt,
+	.pr_register_and_move	= tcm_rbd_execute_pr_register_and_move,
 };
 
 static const struct target_backend_ops tcm_rbd_ops = {