From: Kefu Chai <kchai@redhat.com>
Date: Sat, 19 Dec 2020 09:36:24 +0000 (+0800)
Subject: crimson/osd: load obj ctx for backfill in parallel
X-Git-Tag: v16.1.0~146^2~15
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=a401fd2ded85812e8afa4407c1babab97d4aedca;p=ceph.git

crimson/osd: load obj ctx for backfill in parallel

no need to load object contexts for backfill sequentially.

Signed-off-by: Kefu Chai <kchai@redhat.com>
---

diff --git a/src/crimson/osd/recovery_backend.cc b/src/crimson/osd/recovery_backend.cc
index ff9963b2b753..3b8065e2f0f6 100644
--- a/src/crimson/osd/recovery_backend.cc
+++ b/src/crimson/osd/recovery_backend.cc
@@ -164,9 +164,9 @@ seastar::future<BackfillInterval> RecoveryBackend::scan_for_backfill(
     [this, &start, max] (auto& version_map) {
       return backend->list_objects(start, max).then(
         [this, &start, &version_map] (auto&& ret) {
-          auto& [objects, next] = ret;
-          return seastar::do_for_each(
-            objects,
+          auto&& [objects, next] = std::move(ret);
+          return seastar::parallel_for_each(
+            std::move(objects),
             [this, &version_map] (const hobject_t& object) {
               crimson::osd::ObjectContextRef obc;
               if (pg.is_primary()) {