From ade788ffe818d33fc23b5f471d1ea1bab03873ff Mon Sep 17 00:00:00 2001
From: Gleb Natapov <gleb@scylladb.com>
Date: Thu, 20 Feb 2020 12:29:39 +0200
Subject: [PATCH] commitlog: use commitlog IO scheduling class for segment
 zeroing

There may be other commitlog writes waiting for zeroing to complete, so
not using proper scheduling class causes priority inversion.

Fixes #5858.

Message-Id: <20200220102939.30769-2-gleb@scylladb.com>
(cherry picked from commit 6a78cc9e310c7d4520d51956bb1f811d3594e2a6)
---
 db/commitlog/commitlog.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/db/commitlog/commitlog.cc b/db/commitlog/commitlog.cc
index cb2be09405..a209426ba2 100644
--- a/db/commitlog/commitlog.cc
+++ b/db/commitlog/commitlog.cc
@@ -1328,7 +1328,7 @@ future<db::commitlog::segment_manager::sseg_ptr> db::commitlog::segment_manager:
                             v.emplace_back(iovec{ buf.get_write(), s});
                             m += s;
                         }
-                        return f.dma_write(max_size - rem, std::move(v)).then([&rem](size_t s) {
+                        return f.dma_write(max_size - rem, std::move(v), service::get_local_commitlog_priority()).then([&rem](size_t s) {
                             rem -= s;
                             return stop_iteration::no;
                         });