From c184943bdf38de5b4cbf165fd1cd98ce7bd9e976 Mon Sep 17 00:00:00 2001
From: hari gowtham <hgowtham@redhat.com>
Date: Tue, 16 Jun 2020 14:47:53 +0530
Subject: [PATCH 452/456] Tier/DHT: Handle the pause case missed out

Problem: While backporting a change from master
the changes related to tier were removed. This started affecting
the tier pause functionality. Backporting it
to downstream left this usecase messed up as we still support tier.
patch that caused this: https://code.engineering.redhat.com/gerrit/#/c/202647/2

Fix: add the condition back for tier pause to work.

Label: DOWNSTREAM ONLY

BUG: 1844359
Change-Id: I46c6c179b09c7e1a729be9fd257fa4a490f0287e
Signed-off-by: hari gowtham <hgowtham@redhat.com>
Reviewed-on: https://code.engineering.redhat.com/gerrit/203560
Tested-by: RHGS Build Bot <nigelb@redhat.com>
Reviewed-by: Sunil Kumar Heggodu Gopala Acharya <sheggodu@redhat.com>
---
 xlators/cluster/dht/src/dht-rebalance.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/xlators/cluster/dht/src/dht-rebalance.c b/xlators/cluster/dht/src/dht-rebalance.c
index e9974cd..abc10fc 100644
--- a/xlators/cluster/dht/src/dht-rebalance.c
+++ b/xlators/cluster/dht/src/dht-rebalance.c
@@ -1160,6 +1160,15 @@ __dht_rebalance_migrate_data(xlator_t *this, gf_defrag_info_t *defrag,
             break;
         }
 
+        if ((defrag && defrag->cmd == GF_DEFRAG_CMD_START_TIER) &&
+            (gf_defrag_get_pause_state(&defrag->tier_conf) != TIER_RUNNING)) {
+            gf_msg("tier", GF_LOG_INFO, 0, DHT_MSG_TIER_PAUSED,
+                   "Migrate file paused");
+            ret = -1;
+            break;
+        }
+
+
         offset += ret;
         total += ret;
 
-- 
1.8.3.1