From 27168cf5021575d342a27d343f6cae77b116710c Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@redhat.com>
Date: Thu, 19 Apr 2018 22:12:19 -0500
Subject: [PATCH] osd: no cache agent or snap trimming during premerge

The PG is quiesced; not background activity.

Signed-off-by: Sage Weil <sage@redhat.com>
---
 src/osd/PrimaryLogPG.cc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/osd/PrimaryLogPG.cc b/src/osd/PrimaryLogPG.cc
index c81562fc405..a30f08a9a28 100644
--- a/src/osd/PrimaryLogPG.cc
+++ b/src/osd/PrimaryLogPG.cc
@@ -4514,7 +4514,9 @@ void PrimaryLogPG::kick_snap_trim()
 {
   ceph_assert(is_active());
   ceph_assert(is_primary());
-  if (is_clean() && !snap_trimq.empty()) {
+  if (is_clean() &&
+      !state_test(PG_STATE_PREMERGE) &&
+      !snap_trimq.empty()) {
     if (get_osdmap()->test_flag(CEPH_OSDMAP_NOSNAPTRIM)) {
       dout(10) << __func__ << ": nosnaptrim set, not kicking" << dendl;
     } else {
@@ -13745,6 +13747,7 @@ void PrimaryLogPG::agent_setup()
   ceph_assert(is_locked());
   if (!is_active() ||
       !is_primary() ||
+      state_test(PG_STATE_PREMERGE) ||
       pool.info.cache_mode == pg_pool_t::CACHEMODE_NONE ||
       pool.info.tier_of < 0 ||
       !get_osdmap()->have_pg_pool(pool.info.tier_of)) {